frontend/common.css

/* ── Theme variables ── */
:root {
  color-scheme: dark;
  /* Dark (default) */
  --bg:          #0a0f1e;
  --bg-card:     #111827;
  --bg-glass:    rgba(17,24,39,0.60);
  --bg-section:  rgba(10,15,30,0.84);
  --bg-nav:      rgba(10,15,30,0.88);
  --bg-input:    #1e293b;
  --text:        #f1f5f9;
  --text2:       #94a3b8;
  --text3:       #64748b;
  --border:      rgba(255,255,255,0.07);
  --border2:     rgba(255,255,255,0.13);
  --shadow:      0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.5);
  --accent:      #818cf8;
  --accent-from: #818cf8;
  --accent-via:  #38bdf8;
  --accent-to:   #34d399;
  /* Semantic colours */
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger:  #f87171;
  --color-info:    #38bdf8;
  --color-success-bg: rgba(52,211,153,0.10);
  --color-warning-bg: rgba(251,191,36,0.10);
  --color-danger-bg:  rgba(248,113,113,0.10);
  --color-info-bg:    rgba(56,189,248,0.10);
}

/* ── Light theme ── */
[data-theme="light"] {
  color-scheme: light;
  --bg:          #dce4f0;
  --bg-card:     #eef2f8;
  --bg-glass:    rgba(238,242,248,0.82);
  --bg-section:  rgba(220,228,240,0.70);
  --bg-nav:      rgba(220,228,240,0.88);
  --bg-input:    #e4eaf4;
  --text:        #0f172a;
  --text2:       #3d5070;
  --text3:       #7a90b0;
  --border:      rgba(99,102,241,0.12);
  --border2:     rgba(99,102,241,0.20);
  --shadow:      0 2px 12px rgba(30,50,100,0.08), 0 1px 3px rgba(30,50,100,0.06);
  --shadow-lg:   0 6px 28px rgba(30,50,100,0.12), 0 2px 8px rgba(30,50,100,0.07);
  --accent:      #6366f1;
  --accent-from: #6366f1;
  --accent-via:  #0ea5e9;
  --accent-to:   #10b981;
  --color-success: #059669;
  --color-warning: #d97706;
  --color-danger:  #dc2626;
  --color-info:    #0284c7;
  --color-success-bg: rgba(5,150,105,0.10);
  --color-warning-bg: rgba(217,119,6,0.10);
  --color-danger-bg:  rgba(220,38,38,0.10);
  --color-info-bg:    rgba(2,132,199,0.10);
}

/* ── Midnight theme ── */
[data-theme="midnight"] {
  color-scheme: dark;
  --bg:          #000000;
  --bg-card:     #0d0d0d;
  --bg-glass:    rgba(13,13,13,0.75);
  --bg-section:  rgba(0,0,0,0.92);
  --bg-nav:      rgba(0,0,0,0.96);
  --bg-input:    #1a1a1a;
  --text:        #f0f0f0;
  --text2:       #909090;
  --text3:       #555555;
  --border:      rgba(255,255,255,0.06);
  --border2:     rgba(255,255,255,0.11);
  --shadow:      0 4px 28px rgba(0,0,0,0.8);
  --shadow-lg:   0 8px 48px rgba(0,0,0,0.9);
  --accent:      #a855f7;
  --accent-from: #a855f7;
  --accent-via:  #ec4899;
  --accent-to:   #f43f5e;
  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-danger:  #f87171;
  --color-info:    #a855f7;
  --color-success-bg: rgba(52,211,153,0.10);
  --color-warning-bg: rgba(251,191,36,0.10);
  --color-danger-bg:  rgba(248,113,113,0.10);
  --color-info-bg:    rgba(168,85,247,0.12);
}

/* ── Ocean theme ── */
[data-theme="ocean"] {
  color-scheme: dark;
  --bg:          #020c1b;
  --bg-card:     #0a1628;
  --bg-glass:    rgba(10,22,40,0.72);
  --bg-section:  rgba(2,12,27,0.92);
  --bg-nav:      rgba(2,12,27,0.96);
  --bg-input:    #112240;
  --text:        #ccd6f6;
  --text2:       #8892b0;
  --text3:       #4d5f82;
  --border:      rgba(100,255,218,0.07);
  --border2:     rgba(100,255,218,0.13);
  --shadow:      0 4px 24px rgba(0,0,0,0.55);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.65);
  --accent:      #0ea5e9;
  --accent-from: #0ea5e9;
  --accent-via:  #06b6d4;
  --accent-to:   #64ffda;
  --color-success: #64ffda;
  --color-warning: #fbbf24;
  --color-danger:  #f87171;
  --color-info:    #0ea5e9;
  --color-success-bg: rgba(100,255,218,0.08);
  --color-warning-bg: rgba(251,191,36,0.10);
  --color-danger-bg:  rgba(248,113,113,0.10);
  --color-info-bg:    rgba(14,165,233,0.10);
}

/* ── Sunset theme ── */
[data-theme="sunset"] {
  color-scheme: dark;
  --bg:          #180c04;
  --bg-card:     #211208;
  --bg-glass:    rgba(33,18,8,0.75);
  --bg-section:  rgba(24,12,4,0.92);
  --bg-nav:      rgba(20,10,3,0.96);
  --bg-input:    #2e1a0a;
  --text:        #fef3e2;
  --text2:       #c4956a;
  --text3:       #7a5430;
  --border:      rgba(249,115,22,0.09);
  --border2:     rgba(249,115,22,0.18);
  --shadow:      0 4px 24px rgba(0,0,0,0.55);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.65);
  --accent:      #f97316;
  --accent-from: #f97316;
  --accent-via:  #f59e0b;
  --accent-to:   #fbbf24;
  --color-success: #4ade80;
  --color-warning: #fbbf24;
  --color-danger:  #f87171;
  --color-info:    #fb923c;
  --color-success-bg: rgba(74,222,128,0.10);
  --color-warning-bg: rgba(251,191,36,0.10);
  --color-danger-bg:  rgba(248,113,113,0.10);
  --color-info-bg:    rgba(251,146,60,0.12);
}

/* ── Forest theme ── */
[data-theme="forest"] {
  color-scheme: dark;
  --bg:          #020f05;
  --bg-card:     #081a0c;
  --bg-glass:    rgba(8,26,12,0.72);
  --bg-section:  rgba(2,15,5,0.92);
  --bg-nav:      rgba(2,12,4,0.96);
  --bg-input:    #0e2914;
  --text:        #dcfce7;
  --text2:       #86efac;
  --text3:       #4d9960;
  --border:      rgba(74,222,128,0.07);
  --border2:     rgba(74,222,128,0.13);
  --shadow:      0 4px 24px rgba(0,0,0,0.55);
  --shadow-lg:   0 8px 40px rgba(0,0,0,0.65);
  --accent:      #22c55e;
  --accent-from: #22c55e;
  --accent-via:  #10b981;
  --accent-to:   #06b6d4;
  --color-success: #4ade80;
  --color-warning: #fbbf24;
  --color-danger:  #f87171;
  --color-info:    #22c55e;
  --color-success-bg: rgba(74,222,128,0.10);
  --color-warning-bg: rgba(251,191,36,0.10);
  --color-danger-bg:  rgba(248,113,113,0.10);
  --color-info-bg:    rgba(34,197,94,0.10);
}

/* Legacy palette overrides — still work for URL ?palette= param */
[data-palette="sunset"] { --accent: #f97316; --accent-from: #f97316; --accent-via: #f59e0b; --accent-to: #fbbf24; }
[data-palette="aurora"] { --accent: #a855f7; --accent-from: #a855f7; --accent-via: #ec4899; --accent-to: #f43f5e; }
[data-palette="ocean"]  { --accent: #0ea5e9; --accent-from: #0ea5e9; --accent-via: #06b6d4; --accent-to: #10b981; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ── Gradient top bar ── */
.gradient-top-bar { display: none; }

/* ── Gradient text ── */
.gradient-text {
  background: linear-gradient(in oklch 135deg, var(--accent-from) 0%, var(--accent-via) 50%, var(--accent-to) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Navbar ── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, color-mix(in srgb, var(--bg-nav) 92%, var(--accent-from) 8%) 35%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid color-mix(in srgb, var(--accent-from) 12%, var(--border));
  padding: 0 1.75rem;
  height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
}
.nav-logo {
  display: flex; align-items: center; gap: 0.75rem;
  text-decoration: none; color: var(--text);
}
.nav-logo-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(in oklch 135deg, var(--accent-from), var(--accent-via), var(--accent-to));
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.78rem; color: #fff;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent-from) 50%, transparent),
              0 2px 8px rgba(0,0,0,0.25);
  flex-shrink: 0;
}
.nav-title { font-weight: 800; font-size: 1rem; letter-spacing: -0.03em; }
.nav-sub   { font-size: 0.68rem; color: var(--text3); margin-top: 2px; letter-spacing: 0.01em; }

.theme-btn {
  background: var(--border); border: 1px solid var(--border2);
  color: var(--text2); border-radius: 8px;
  width: 34px; height: 34px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 1rem; transition: background 0.15s;
}
.theme-btn:hover { background: var(--border2); }

/* ── Theme picker ── */
.theme-picker-wrap { position: relative; }
.theme-picker-btn {
  display: flex; align-items: center; gap: 0.4rem;
  padding: 0 0.85rem; height: 34px; border-radius: 9999px;
  background: color-mix(in srgb, var(--accent-from) 8%, var(--border));
  border: 1px solid color-mix(in srgb, var(--accent-from) 20%, var(--border2));
  color: var(--text2); cursor: pointer; font-size: 1rem; font-weight: 800; letter-spacing: -0.03em;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}
.theme-picker-btn:hover {
  background: color-mix(in srgb, var(--accent-from) 15%, var(--border2));
  border-color: color-mix(in srgb, var(--accent-from) 40%, transparent);
  color: var(--text);
}
.theme-picker-swatch {
  width: 10px; height: 10px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-from), var(--accent-to));
  flex-shrink: 0;
}
.theme-picker-dropdown {
  display: none; position: absolute; right: 0; top: calc(100% + 6px);
  background: var(--bg-card); border: 1px solid var(--border2);
  border-radius: 12px; box-shadow: var(--shadow-lg);
  padding: 0.4rem; z-index: 200; min-width: 150px;
}
.theme-picker-dropdown.open { display: block; }
.theme-option {
  display: flex; align-items: center; gap: 0.55rem;
  padding: 0.45rem 0.65rem; border-radius: 8px; cursor: pointer;
  font-size: 0.78rem; font-weight: 500; color: var(--text2);
  border: none; background: transparent; width: 100%; text-align: left;
  transition: background 0.12s, color 0.12s;
}
.theme-option:hover { background: var(--border); color: var(--text); }
.theme-option.active { background: var(--border2); color: var(--text); font-weight: 700; }
.theme-option-dot {
  width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0;
  border: 1.5px solid rgba(255,255,255,0.15);
}

/* ── Layout ── */
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 0;
  overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
  border-right: 1px solid var(--border);
  padding: 1.25rem 0.75rem;
  display: flex; flex-direction: column; gap: 0.55rem;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--accent) 35%, transparent) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 35%, transparent);
  border-radius: 4px;
}
.main {
  scrollbar-width: thin;
  scrollbar-color: color-mix(in srgb, var(--accent) 25%, transparent) transparent;
}
.main::-webkit-scrollbar { width: 4px; }
.main::-webkit-scrollbar-track { background: transparent; }
.main::-webkit-scrollbar-thumb {
  background: color-mix(in srgb, var(--accent) 25%, transparent);
  border-radius: 4px;
}
.sidebar-label {
  font-size: 0.6rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--text3);
  padding: 0 0.75rem; margin-bottom: 0.25rem; margin-top: 0.75rem;
}
.sidebar-label:first-child { margin-top: 0; }
.model-btn {
  display: flex; align-items: center; gap: 0.65rem;
  padding: 0.65rem 0.75rem 0.65rem 0.85rem; border-radius: 11px;
  cursor: pointer; border: 1px solid transparent; background: transparent;
  color: var(--text2); text-align: left; width: 100%;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  position: relative; overflow: hidden; flex-shrink: 0;
}
.model-btn:hover { background: var(--border); color: var(--text); }
.model-btn.active {
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text);
  border-color: var(--border2);
  padding-left: 1rem;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.model-btn.active::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; border-radius: 10px 0 0 10px;
  background: var(--active-accent, #818cf8);
}
.model-dot {
  width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0;
  transition: box-shadow 0.2s;
}
.model-btn.active .model-dot {
  box-shadow: 0 0 8px var(--active-accent, #818cf8);
}
.model-btn-info { flex: 1; min-width: 0; }
.model-btn-title { font-size: 0.88rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.model-btn-sub   { font-size: 0.72rem; color: var(--text3); margin-top: 2px; }
.model-badge {
  font-size: 0.58rem; font-weight: 700; padding: 2px 7px; border-radius: 9999px;
  background: var(--border2); color: var(--text2); flex-shrink: 0;
}
.model-delete-btn {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; opacity: 0.3; transition: opacity 0.15s, background 0.15s, color 0.15s;
  color: var(--text3); z-index: 2; flex-shrink: 0;
}
.model-btn:hover .model-delete-btn { opacity: 1; }
.model-delete-btn:hover { background: rgba(239,68,68,0.15); color: #f87171; }
.sample-toggle {
  display: flex; align-items: center; gap: 0.5rem; width: 100%;
  background: transparent; border: none; cursor: pointer;
  color: var(--text3); font-size: 0.6rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  padding: 0 0.75rem; margin-bottom: 0.25rem; margin-top: 0.75rem;
  transition: color 0.15s;
}
.sample-toggle:hover { color: var(--text2); }
.sample-toggle svg { transition: transform 0.2s; flex-shrink: 0; }
.sample-toggle.open svg { transform: rotate(90deg); }
.sample-item.hidden { display: none !important; }
.del-overlay {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(2px);
}
.del-overlay.open { display: block; }
.del-modal {
  display: none; position: fixed; z-index: 201;
  top: 50%; left: 50%; transform: translate(-50%, -50%);
  background: var(--bg-card); border: 1px solid var(--border2);
  border-radius: 18px; padding: 1.5rem 1.75rem; min-width: 280px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.35);
}
.del-modal.open { display: block; }
.del-modal-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.del-modal-body  { font-size: 0.82rem; color: var(--text2); margin-bottom: 1.25rem; line-height: 1.5; }
.del-modal-actions { display: flex; gap: 0.6rem; justify-content: flex-end; }

/* ── Main area ── */
.main {
  padding: 2rem 2rem 3rem;
  overflow-y: auto;
  min-width: 0;
}

.model-header {
  padding: 2rem 0 0;
  margin-bottom: 0;
  position: relative;
}
.model-header-top {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1.5rem;
  flex-wrap: wrap; margin-bottom: 1.5rem;
}
.model-eyebrow {
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; margin-bottom: 0.55rem;
  color: var(--accent-from);
}
.model-title { font-size: 2rem; font-weight: 800; color: var(--text); line-height: 1.15; letter-spacing: -0.03em; }
.model-desc  { font-size: 0.88rem; color: var(--text2); margin-top: 0.55rem; line-height: 1.65; max-width: 520px; }
.model-metric { text-align: right; flex-shrink: 0; padding-top: 0.25rem; }
.metric-val   { font-size: 1.75rem; font-weight: 800; line-height: 1; color: var(--accent-from); }
.metric-label { font-size: 0.62rem; color: var(--text3); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.06em; }

/* Section label used above form inputs */
.section-eyebrow {
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--text3);
  margin: 2rem 0 0.85rem;
}

/* ── Form ── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.field-group { display: flex; flex-direction: column; gap: 0.4rem; }
.field-label {
  font-size: 0.78rem; font-weight: 600; color: var(--text2);
}
.field-input, .field-select {
  background: var(--bg-input);
  border: 1px solid var(--border2);
  border-radius: 8px;
  color: var(--text);
  font-size: 0.88rem;
  padding: 0.55rem 0.75rem;
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
  appearance: none;
}
.field-input:focus, .field-select:focus {
  border-color: var(--active-accent, var(--accent));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--active-accent, #818cf8) 18%, transparent);
}
.field-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%2364748b' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  padding-right: 2rem;
  cursor: pointer;
}

/* ── Action buttons ── */
.action-row {
  display: flex; gap: 0.75rem; margin-bottom: 1.5rem; flex-wrap: wrap;
}
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.65rem 1.35rem; border-radius: 9999px;
  font-size: 0.85rem; font-weight: 700; cursor: pointer;
  border: none; transition: opacity 0.15s, transform 0.15s, box-shadow 0.15s;
  letter-spacing: 0.01em;
}
.btn:hover { opacity: 0.88; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary  { background: var(--active-accent, var(--accent-from)); color: #fff; box-shadow: 0 4px 16px color-mix(in srgb, var(--active-accent, var(--accent-from)) 35%, transparent); }
.btn-sample   { background: color-mix(in srgb, var(--active-accent, var(--accent)) 12%, transparent); border: 1px solid color-mix(in srgb, var(--active-accent, var(--accent)) 30%, transparent); color: var(--active-accent, var(--accent)); }
.btn-clear    { background: var(--active-accent, var(--accent-from)); border: 1px solid var(--active-accent, var(--accent-from)); color: #fff; }

/* ── Result panel ── */
.result-wrap { margin-top: 0.75rem; }

.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 3.5rem 1rem; gap: 0.75rem;
  color: var(--text3); font-size: 0.85rem; text-align: center;
  opacity: 0.75;
}
.empty-icon { display:flex; align-items:center; justify-content:center; }

.result-state {
  display: none;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 16px; overflow: hidden;
  box-shadow: none;
}
.result-accent-bar { display: none; }

.result-body { padding: 1.75rem 1.5rem 1.5rem; }

/* Classification result */
.result-class-main {
  display: flex; align-items: center; gap: 1rem;
  margin-bottom: 1.25rem;
}
.result-class-icon {
  width: 48px; height: 48px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; flex-shrink: 0;
}
.result-class-label { font-size: 0.7rem; color: var(--text3); text-transform: uppercase; letter-spacing: 0.06em; }
.result-class-value { font-size: 1.4rem; font-weight: 800; margin-top: 2px; }

.proba-section { display:flex; flex-direction:column; gap:0.7rem; margin-top:0.5rem;
  border:1px solid var(--border2); border-radius:14px; overflow:hidden; }
.proba-section-header { display:flex; align-items:center; justify-content:space-between;
  padding:0.75rem 1rem 0.6rem; border-bottom:1px solid var(--border2); }
.proba-section-label { font-size:0.62rem; font-weight:700; text-transform:uppercase;
  letter-spacing:0.09em; color:var(--text2); }
.proba-section-sub { font-size:0.62rem; color:var(--text3); }
.proba-rows { display:flex; flex-direction:column; gap:0; }
.proba-row { display:flex; flex-direction:column; gap:0.35rem; padding:0.7rem 1rem;
  border-bottom:1px solid var(--border2); }
.proba-row:last-child { border-bottom:none; }
.proba-row--winner { background:color-mix(in srgb,var(--active-accent,var(--accent-from)) 6%,transparent); }
.proba-row-top { display:flex; align-items:center; justify-content:space-between; gap:0.5rem; }
.proba-name { font-size:0.78rem; font-weight:600; color:var(--text2); display:flex; align-items:center; gap:0.45rem; }
.proba-winner-badge { font-size:0.58rem; font-weight:700; text-transform:uppercase; letter-spacing:0.07em;
  padding:0.13rem 0.48rem; border-radius:9999px;
  background:color-mix(in srgb,var(--active-accent,var(--accent-from)) 16%,transparent);
  color:var(--active-accent,var(--accent-from)); flex-shrink:0; }
.proba-pct { font-size:0.82rem; font-weight:800; flex-shrink:0; }
.proba-bar-wrap { width:100%; background:rgba(255,255,255,0.05); border-radius:8px; height:22px; overflow:hidden;
  box-shadow:inset 0 1px 2px rgba(0,0,0,0.2); }
.proba-bar-fill { height:100%; border-radius:8px; transition:width 0.65s cubic-bezier(0.25,0.46,0.45,0.94); }
.proba-row--winner .proba-bar-wrap { background:color-mix(in srgb,var(--active-accent,var(--accent-from)) 10%,transparent); }

/* Regression result */
.result-reg-main {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 1.75rem 1.5rem 1.5rem; gap: 0.35rem; text-align: center;
  background: color-mix(in srgb, var(--active-accent, var(--accent-from)) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--active-accent, var(--accent-from)) 18%, transparent);
  border-radius: 16px; margin-bottom: 0.1rem;
}
.result-reg-label { font-size: 0.68rem; color: var(--text3); letter-spacing: 0.08em; text-transform: uppercase; }
.result-reg-value { font-size: 3rem; font-weight: 800; line-height: 1.05; }
.result-reg-unit  { font-size: 0.85rem; color: var(--text2); }
.result-cluster-main { display:flex; justify-content:center; padding:1rem 0; }
.result-cluster-badge { display:flex; flex-direction:column; align-items:center; gap:0.35rem; padding:1.75rem 2.5rem; border-radius:18px; border:1.5px solid; }
.result-cluster-icon  { font-size:2rem; line-height:1; }
.result-cluster-label { font-size:0.7rem; color:var(--text3); text-transform:uppercase; letter-spacing:0.06em; }
.result-cluster-value { font-size:2rem; font-weight:800; line-height:1.1; }

/* ── SHAP Feature Impact ── */
.shap-panel {
  display: none;
  margin-top: 0.6rem;
  background: transparent;
  border: 1px solid var(--border2);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: none;
}
.shap-panel.visible { display: block; }
.shap-header {
  padding: 1rem 1.5rem 0.8rem;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 0.5rem;
}
.shap-title {
  font-size: 0.72rem; font-weight: 700; color: var(--text2);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.shap-subtitle { font-size: 0.7rem; color: var(--text3); margin-left: auto; }
.shap-body { padding: 1.1rem 1.5rem; display: flex; flex-direction: column; gap: 0.6rem; }
.shap-row {
  display: grid;
  grid-template-columns: 160px 1fr 56px;
  align-items: center;
  gap: 0.75rem;
}
.shap-feat-name {
  font-size: 0.75rem; font-weight: 600; color: var(--text2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  text-align: right;
}
.shap-bar-wrap {
  position: relative; height: 28px;
  display: flex; align-items: center;
  background: rgba(255,255,255,0.03); border-radius: 8px;
  overflow: hidden;
}
.shap-bar-center {
  position: absolute; left: 50%; top: 0; bottom: 0;
  width: 1px; background: var(--border2); z-index: 1;
}
.shap-bar-fill {
  position: absolute; height: 16px; border-radius: 5px;
  transition: width 0.55s cubic-bezier(0.4,0,0.2,1), left 0.55s ease;
}
.shap-bar-fill.pos { background: var(--active-accent, var(--accent-from)); left: 50%; }
.shap-bar-fill.neg { background: color-mix(in srgb, var(--active-accent, var(--accent-from)) 55%, transparent); right: 50%; }
.shap-val {
  font-size: 0.72rem; font-weight: 700;
  text-align: right; font-variant-numeric: tabular-nums;
}
.shap-val.pos { color: var(--active-accent, var(--accent-from)); }
.shap-val.neg { color: var(--active-accent, var(--accent-from)); }
.shap-base {
  padding: 0.7rem 1.5rem;
  border-top: 1px solid var(--border);
  font-size: 0.7rem; color: var(--text3);
}
.shap-loading {
  padding: 1.5rem; text-align: center; color: var(--text3); font-size: 0.82rem;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
}
.result-cluster-sub   { font-size:0.78rem; color:var(--text3); margin-top:0.15rem; }

/* ── Model content tabs (Predict / Pipeline) ── */
.model-tabs {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.model-tab {
  display: flex; align-items: center; gap: 0.45rem;
  padding: 0.6rem 1.1rem 0.55rem;
  border: none; border-bottom: 2px solid transparent; margin-bottom: -1px;
  font-size: 0.8rem; font-weight: 600;
  color: var(--text3); background: transparent; cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}
.model-tab:hover { color: var(--text2); }
.model-tab.active {
  color: var(--accent-from);
  border-bottom-color: var(--accent-from);
}

/* ── Pipeline flow view ── */
#pipelineView { display: none; padding: 0.5rem 0 1.5rem; }
#pipelineView.visible { display: block; }

/* ── What-if view ── */
#trainingView { display: none; padding: 0.5rem 0 1.5rem; }
#trainingView.visible { display: block; }

/* ── Performance view ── */
#performanceView { display: none; padding: 0.5rem 0 1.5rem; }
#performanceView.visible { display: block; }
.perf-card {
  background: transparent; border: 1px solid var(--border2); border-radius: 14px;
  padding: 1.25rem 1.35rem; margin-bottom: 1.25rem;
}
.perf-card-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); margin-bottom: 0.75rem; }
.perf-ci-note {
  margin-top: 0.85rem; padding: 0.65rem 0.75rem;
  background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: 9px;
  font-size: 0.72rem; color: var(--text2); line-height: 1.5;
}
.perf-ci-note strong { color: var(--text); }
.perf-metrics-row { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 0.85rem; }
.perf-metric-chip {
  padding: 0.3rem 0.65rem; border-radius: 20px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--border2);
  font-size: 0.7rem; font-weight: 700; color: var(--text2);
}
.perf-metric-chip span { color: var(--text); font-weight: 800; }
.train-card {
  background: transparent; border: 1px solid var(--border2); border-radius: 14px;
  padding: 1.25rem 1.35rem; margin-bottom: 1.25rem;
}
.train-curve-meta { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 0.85rem; gap: 0.5rem; }
.train-curve-label { font-size: 0.78rem; font-weight: 600; color: var(--text2); }
.train-curve-range { font-size: 0.72rem; color: var(--text3); font-variant-numeric: tabular-nums; }
.train-sparkline { width: 100%; display: block; overflow: visible; }
.train-no-data { font-size: 0.82rem; color: var(--text3); padding: 2rem 0; text-align: center; }
/* ── Drift panel ── */
.drift-summary {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 1rem 1.25rem; border-radius: 14px;
  border: 1px solid var(--border2); background: transparent;
  margin-bottom: 1.25rem;
}
.drift-summary-icon { display: flex; align-items: center; flex-shrink: 0; }
.drift-summary-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text3); }
.drift-summary-value { font-size: 1.05rem; font-weight: 700; color: var(--text); }
.drift-badge {
  margin-left: auto; padding: 0.25rem 0.65rem; border-radius: 9999px;
  font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
}
.drift-badge--low    { background: var(--color-success-bg); color: var(--color-success); }
.drift-badge--medium { background: var(--color-warning-bg); color: var(--color-warning); }
.drift-badge--high   { background: var(--color-danger-bg);  color: var(--color-danger);  }
.drift-features { display: flex; flex-direction: column; gap: 0.7rem; }
.drift-feature {
  padding: 0.9rem 1.1rem; border-radius: 12px;
  border: 1px solid var(--border2); background: transparent;
}
.drift-feature-top {
  display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.55rem;
}
.drift-fname { font-size: 0.82rem; font-weight: 600; color: var(--text); flex: 1; }
.drift-score-wrap {
  width: 100%; background: var(--border2); border-radius: 6px; height: 6px; overflow: hidden; margin-bottom: 0.5rem;
}
.drift-score-fill {
  height: 100%; border-radius: 6px; transition: width 0.6s cubic-bezier(0.25,0.46,0.45,0.94);
}
.drift-score-fill--low    { background: var(--color-success); }
.drift-score-fill--medium { background: var(--color-warning); }
.drift-score-fill--high   { background: var(--color-danger);  }
.drift-stats { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.drift-stat { display: flex; flex-direction: column; gap: 2px; }
.drift-stat-label { font-size: 0.6rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text3); }
.drift-stat-val { font-size: 0.8rem; font-weight: 600; color: var(--text2); font-variant-numeric: tabular-nums; }
.drift-cat-bars { display: flex; flex-direction: column; gap: 0.3rem; margin-top: 0.3rem; }
.drift-cat-row { display: flex; align-items: center; gap: 0.6rem; font-size: 0.72rem; }
.drift-cat-name { width: 90px; flex-shrink: 0; color: var(--text2); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drift-cat-bar-wrap { flex: 1; position: relative; height: 12px; background: var(--border2); border-radius: 4px; overflow: hidden; }
.drift-cat-bar-ref    { position: absolute; top: 0; left: 0; height: 100%; border-radius: 4px; background: var(--border2); opacity: 0.6; }
.drift-cat-bar-recent { position: absolute; top: 0; left: 0; height: 100%; border-radius: 4px; background: var(--active-accent, var(--accent-from)); opacity: 0.85; transition: width 0.5s ease; }
.drift-cat-pct { width: 34px; text-align: right; color: var(--text3); font-size: 0.68rem; }
/* PSI badge */
.drift-psi { font-size: 0.68rem; font-weight: 700; padding: 0.15rem 0.45rem; border-radius: 6px; margin-left: 0.35rem; }
.drift-psi--low    { background: var(--color-success-bg); color: var(--color-success); }
.drift-psi--medium { background: var(--color-warning-bg); color: var(--color-warning); }
.drift-psi--high   { background: var(--color-danger-bg);  color: var(--color-danger);  }
/* KS + null rate inline chips */
.drift-ks   { font-size: 0.68rem; color: var(--text3); margin-top: 0.35rem; }
.drift-null { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.65rem; font-weight: 600;
              padding: 0.1rem 0.4rem; border-radius: 5px;
              background: color-mix(in srgb,#f87171 12%,transparent); color: #f87171; margin-left: 0.3rem; }
/* Distribution histogram overlay */
.drift-hist { display: flex; align-items: flex-end; gap: 1px; height: 36px; margin-top: 0.55rem; width: 100%; }
.drift-hist-bin { flex: 1; position: relative; height: 100%; display: flex; align-items: flex-end; }
.drift-hist-ref    { position: absolute; bottom: 0; left: 0; right: 0; border-radius: 2px 2px 0 0;
                     background: var(--border2); opacity: 0.7; }
.drift-hist-actual { position: absolute; bottom: 0; left: 0; right: 0; border-radius: 2px 2px 0 0;
                     background: var(--active-accent, var(--accent-from)); opacity: 0.7;
                     transition: height 0.5s ease; }
.drift-hist-legend { display: flex; gap: 0.75rem; margin-top: 0.25rem; }
.drift-hist-key { font-size: 0.6rem; color: var(--text3); display: flex; align-items: center; gap: 0.3rem; }
.drift-hist-swatch { width: 8px; height: 8px; border-radius: 2px; flex-shrink: 0; }
/* Trend sparkline */
.drift-trend { margin-bottom: 1.25rem; }
.drift-trend-label { font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text3); margin-bottom: 0.35rem; }
.drift-trend-svg { width: 100%; height: 42px; display: block; overflow: visible; }
/* Cat baseline note */
.drift-cat-note { font-size: 0.62rem; color: var(--text3); margin-top: 0.3rem; font-style: italic; }
.drift-empty { text-align: center; padding: 3rem 1rem; color: var(--text3); font-size: 0.85rem; }
.drift-note { font-size: 0.68rem; color: var(--text3); margin-top: 1rem; }
.drift-mode-bar {
  display: flex; gap: 0.5rem; margin-bottom: 1.25rem;
}
.drift-mode-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: 0.45rem;
  padding: 0.45rem 0.75rem; border-radius: 9999px;
  border: 1px solid var(--border2); background: transparent;
  color: var(--text3); font-size: 0.75rem; font-weight: 600; cursor: pointer; transition: all 0.15s;
}
.drift-mode-btn:hover:not(.active) {
  border-color: color-mix(in srgb, var(--active-accent, var(--accent-from)) 35%, transparent);
  color: var(--active-accent, var(--accent-from));
}
.drift-mode-btn.active {
  background: color-mix(in srgb, var(--active-accent, var(--accent-from)) 12%, transparent);
  border-color: color-mix(in srgb, var(--active-accent, var(--accent-from)) 45%, transparent);
  color: var(--active-accent, var(--accent-from)); box-shadow: none;
}
.drift-upload-zone {
  border: 1.5px dashed var(--border2); border-radius: 14px;
  padding: 2.5rem 1.5rem; text-align: center; cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
}
.drift-upload-zone:hover, .drift-upload-zone.drag-over {
  border-color: var(--active-accent, var(--accent-from));
  background: color-mix(in srgb,var(--active-accent,var(--accent-from)) 5%,transparent);
}
.drift-upload-label { font-size: 0.85rem; font-weight: 600; color: var(--text2); }
.drift-upload-sub   { font-size: 0.72rem; color: var(--text3); }

.whatif-desc { font-size: 0.82rem; color: var(--text3); margin: 0.35rem 0 1rem; line-height: 1.55; }
.whatif-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem; }
.whatif-chip {
  padding: 0.3rem 0.75rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 600;
  border: 1px solid var(--border2); background: var(--bg-card); color: var(--text2);
  cursor: pointer; transition: all 0.15s;
}
.whatif-chip:hover { border-color: color-mix(in srgb,var(--active-accent,var(--accent-from)) 40%,transparent); color: var(--active-accent,var(--accent-from)); }
.whatif-chip.active {
  background: color-mix(in srgb,var(--active-accent,var(--accent-from)) 14%,transparent);
  border-color: color-mix(in srgb,var(--active-accent,var(--accent-from)) 45%,transparent);
  color: var(--active-accent,var(--accent-from));
}

/* Timeline container */
.pipe-flow {
  display: flex; flex-direction: column;
  position: relative; padding: 0.25rem 0;
}
/* Vertical line running through all steps */
.pipe-flow::before {
  content: ''; position: absolute;
  left: 14px; top: 14px; bottom: 14px; width: 2px;
  background: linear-gradient(
    to bottom,
    color-mix(in srgb, var(--active-accent, var(--accent-from)) 40%, transparent),
    color-mix(in srgb, var(--active-accent, var(--accent-from)) 15%, transparent)
  );
  border-radius: 2px;
}

/* Each step row: badge + card */
.pipe-step {
  display: flex; align-items: flex-start; gap: 1rem;
  margin-bottom: 1.25rem; position: relative;
}
.pipe-step:last-child { margin-bottom: 0; }

/* Numbered badge */
.pipe-step-num {
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  background: var(--active-accent, var(--accent-from));
  color: #fff; font-size: 0.72rem; font-weight: 800;
  display: flex; align-items: center; justify-content: center;
  z-index: 1; margin-top: 2px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--active-accent, var(--accent-from)) 18%, transparent),
              0 2px 8px rgba(0,0,0,0.18);
}

/* Card */
.pipe-card {
  flex: 1; border-radius: 14px; overflow: hidden;
  background: transparent;
  border: 1px solid var(--border2);
  box-shadow: none;
}

/* Card header */
.pipe-card-header {
  display: flex; align-items: baseline; gap: 0.6rem;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border);
  background: transparent;
}
.pipe-card-eyebrow {
  font-size: 0.62rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.09em; color: var(--accent-from);
  white-space: nowrap;
}
.pipe-card-title { font-size: 0.92rem; font-weight: 700; color: var(--text); }

/* Input feature chips */
.pipe-input-chips {
  display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 0.8rem 1rem;
}
.pipe-chip {
  padding: 0.22rem 0.55rem; border-radius: 6px;
  font-size: 0.68rem; font-weight: 500;
  background: color-mix(in srgb, var(--active-accent, var(--accent-from)) 10%, transparent);
  color: var(--active-accent, var(--accent-from));
  border: 1px solid color-mix(in srgb, var(--active-accent, var(--accent-from)) 28%, transparent);
}

/* Transformer branches */
.pipe-branches {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem; padding: 0.8rem 1rem;
}
.pipe-branch {
  background: transparent; border: 1px solid var(--border2);
  border-radius: 10px; padding: 0.65rem 0.8rem;
}
.pipe-branch-name {
  font-size: 0.64rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--text3); margin-bottom: 0.45rem;
}
.pipe-branch-cols {
  display: flex; flex-wrap: wrap; gap: 0.25rem; margin-bottom: 0.55rem;
}
.pipe-branch-col {
  font-size: 0.62rem; padding: 0.1rem 0.4rem; border-radius: 4px;
  background: var(--bg-card); border: 1px solid var(--border2); color: var(--text2);
}
.pipe-branch-steps {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding-top: 0.55rem; border-top: 1px solid var(--border);
}
.pipe-branch-step {
  display: flex; align-items: flex-start; gap: 0.45rem; font-size: 0.71rem;
}
.pipe-branch-dot {
  width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; margin-top: 4px;
  background: var(--active-accent, var(--accent-from));
}
.pipe-branch-step-name { font-weight: 600; color: var(--text); }
.pipe-branch-step-params { color: var(--text3); font-size: 0.64rem; margin-top: 1px; }

/* Estimator params */
.pipe-params {
  display: flex; flex-wrap: wrap; gap: 0.45rem; padding: 0.8rem 1rem;
}
.pipe-param {
  display: flex; align-items: center; gap: 0.35rem;
  background: var(--bg); border: 1px solid var(--border2);
  border-radius: 7px; padding: 0.28rem 0.6rem; font-size: 0.7rem;
}
.pipe-param-key { color: var(--text3); }
.pipe-param-val { font-weight: 700; color: var(--text); }

.pipe-loading {
  padding: 2rem; text-align: center; color: var(--text3); font-size: 0.85rem;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
}

/* Error state */
.err-state {
  display: none;
  padding: 1rem 1.25rem; border-radius: 12px;
  background: rgba(239,68,68,0.08); border: 1px solid rgba(239,68,68,0.25);
  color: #f87171; font-size: 0.85rem;
}

/* ── SSE progress bar ── */
.sse-progress {
  width: 100%; max-width: 400px; margin: 0 auto;
}
.sse-progress-track {
  width: 100%; height: 8px; background: var(--border2);
  border-radius: 9999px; overflow: hidden; margin-bottom: 0.6rem;
}
.sse-progress-fill {
  height: 100%; border-radius: 9999px;
  background: linear-gradient(90deg, var(--active-accent, var(--accent-from)), color-mix(in srgb, var(--active-accent, var(--accent-from)) 70%, white));
  transition: width 0.35s cubic-bezier(0.25,0.46,0.45,0.94);
  min-width: 4px;
  position: relative; overflow: hidden;
}
.sse-progress-fill::after {
  content: '';
  position: absolute;
  top: 0; left: -60%; width: 50%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.32), transparent);
  animation: progressShimmer 1.5s ease-in-out infinite;
}
.sse-progress-row {
  display: flex; justify-content: space-between; align-items: center;
  gap: 0.5rem; margin-top: 0.25rem;
}
.sse-progress-msg { font-size: 0.78rem; color: var(--text2); flex: 1; text-align: left; }
.sse-progress-pct { font-size: 0.78rem; font-weight: 700; color: var(--text3); font-variant-numeric: tabular-nums; }
/* Reusable JS-injected message boxes */
.js-err-box {
  padding: 0.75rem 1rem;
  background: var(--color-danger-bg);
  border: 1px solid color-mix(in srgb, var(--color-danger) 25%, transparent);
  border-radius: 10px;
  color: var(--color-danger);
  font-size: 0.83rem;
}
.js-warn-box {
  padding: 0.75rem 1rem;
  background: var(--color-warning-bg);
  border: 1px solid color-mix(in srgb, var(--color-warning) 30%, transparent);
  border-radius: 10px;
  color: var(--color-warning);
  font-size: 0.83rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
/* Drift severity icon colors */
.drift-icon--low    { color: var(--color-success); display: inline-flex; }
.drift-icon--medium { color: var(--color-warning); display: inline-flex; }
.drift-icon--high   { color: var(--color-danger);  display: inline-flex; }

/* Loading spinner */
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff; border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty/loading sidebar ── */
.sidebar-loading { padding: 1rem 0.75rem; color: var(--text3); font-size: 0.82rem; }

/* ── Responsive: mobile bottom bar replaces sidebar ── */
@media (max-width: 640px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none !important; }
  .main { padding: 1.25rem 1rem calc(64px + env(safe-area-inset-bottom) + 1.5rem); }
}

/* ── Mobile strip (fixed chip row just below nav, mobile only) ── */
.mobile-strip {
  display: none;
  position: fixed; top: 56px; left: 0; right: 0; z-index: 40;
  background: var(--bg-nav); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 1rem; gap: 0.45rem;
  overflow-x: auto; overflow-y: hidden; scrollbar-width: none;
}
.mobile-strip::-webkit-scrollbar { display: none; }
@media (max-width: 640px) {
  /* strip shown only when body has class */
  body.mobile-has-strip .mobile-strip { display: flex; }
  body.mobile-has-strip .main { padding-top: calc(44px + 1.25rem); }
}

.mobile-chip {
  flex-shrink: 0; padding: 0.36rem 0.88rem;
  border-radius: 9999px; border: 1px solid var(--border2);
  background: transparent; color: var(--text2);
  font-size: 0.72rem; font-weight: 600; cursor: pointer;
  transition: all 0.15s; white-space: nowrap;
}
.mobile-chip:active { opacity: 0.75; }
.mobile-chip.active {
  background: var(--chip-accent, var(--active-accent, var(--accent-from)));
  color: #fff; border-color: transparent;
}

/* ── Bottom tab bar (mobile only) ── */
.bottom-tabs {
  display: none;
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
  background: var(--bg-nav); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
}
@media (max-width: 640px) { .bottom-tabs { display: flex; } }

.bottom-tab {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 3px; padding: 0.55rem 0 0.5rem;
  cursor: pointer; border: none; background: transparent;
  color: var(--text3); font-size: 0.57rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em; transition: color 0.15s;
}
.bottom-tab svg { width: 20px; height: 20px; }
.bottom-tab.active { color: var(--accent-from); }

/* ── Tools bottom sheet ── */
.tools-sheet-overlay {
  display: none; position: fixed; inset: 0; z-index: 60;
  background: rgba(0,0,0,0.42); opacity: 0; transition: opacity 0.25s;
}
.tools-sheet-overlay.open { display: block; opacity: 1; }
.tools-sheet {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 61;
  background: var(--bg-card); border-radius: 20px 20px 0 0;
  border-top: 1px solid var(--border2);
  padding: 0.5rem 1.25rem calc(1.25rem + env(safe-area-inset-bottom));
  transform: translateY(100%); transition: transform 0.3s cubic-bezier(0.32,0.72,0,1);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.tools-sheet.open { transform: translateY(0); }
.tools-sheet-handle {
  width: 36px; height: 4px; border-radius: 9999px;
  background: var(--border2); margin: 0 auto 0.9rem;
}
.tools-sheet-btn {
  display: flex; align-items: center; gap: 0.7rem;
  padding: 0.9rem 1rem; border-radius: 12px;
  border: 1px solid var(--border2); background: var(--bg);
  color: var(--text2); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: background 0.15s, color 0.15s; text-align: left;
}
.tools-sheet-btn:active { background: var(--border); }

/* ── Sidebar upload button ── */
.sidebar-upload-btn {
  display: flex; align-items: center; gap: 0.5rem;
  margin-top: 0.5rem; padding: 0.7rem 0.75rem;
  border-radius: 10px; border: 1px dashed var(--border2);
  background: transparent; color: var(--text3);
  font-size: 0.78rem; font-weight: 600; cursor: pointer;
  width: 100%; text-align: left; transition: all 0.15s;
}
.sidebar-upload-btn:hover { border-color: var(--accent); color: var(--accent); background: rgba(129,140,248,0.05); }

/* ── Wizard layout ── */
.wizard { max-width: 540px; }

.wizard-steps {
  display: flex; align-items: center; margin-bottom: 2rem;
}
.wizard-step {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.72rem; font-weight: 600; color: var(--text3);
  white-space: nowrap;
}
.wizard-step.active { color: var(--active-accent, var(--accent-from)); }
.wizard-step.done   { color: var(--text2); }
.wizard-step-num {
  width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700;
  background: var(--border2); color: var(--text3);
}
.wizard-step.active .wizard-step-num { background: var(--active-accent, var(--accent-from)); color: #fff; }
.wizard-step.done   .wizard-step-num { background: var(--color-success); color: #fff; }
.wizard-sep { flex: 1; height: 1px; background: var(--border2); margin: 0 0.5rem; min-width: 16px; }

/* ── Upload zone ── */
.upload-zone {
  border: 2px dashed var(--border2); border-radius: 14px;
  padding: 2.5rem 1.5rem; text-align: center; cursor: pointer;
  transition: all 0.15s; margin-bottom: 1.5rem; position: relative;
}
.upload-zone:hover, .upload-zone.drag { border-color: var(--accent); background: rgba(129,140,248,0.04); }
.upload-zone input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; }
.upload-zone-icon { display:flex; justify-content:center; margin-bottom:0.5rem; }
.upload-zone-text { font-size: 0.88rem; color: var(--text2); font-weight: 500; }
.upload-zone-sub  { font-size: 0.72rem; color: var(--text3); margin-top: 0.25rem; }

/* ── Wizard form sections ── */
.wizard-section { margin-bottom: 1.25rem; }
.wizard-label {
  font-size: 0.72rem; font-weight: 600; color: var(--active-accent, var(--accent-from));
  text-transform: uppercase; letter-spacing: 0.04em;
  display: block; margin-bottom: 0.4rem;
}
.wizard * { color: var(--active-accent, var(--accent-from)); }
.aml-results-page * { color: var(--active-accent, var(--accent-from)); }
.wizard .btn, .aml-results-page .btn { color: #fff; }
.wizard .btn *, .aml-results-page .btn * { color: #fff; }
.aml-exp-panel-body, .aml-exp-panel-body * { color: var(--text1); }
.aml-exp-recs li, .aml-exp-recs li * { color: var(--text1); }

/* ── Task type toggle ── */
.task-toggle { display: flex; gap: 0.5rem; }
.task-toggle input[type=radio] { display: none; }
.task-toggle label {
  flex: 1; padding: 0.55rem; border-radius: 8px;
  border: 1px solid var(--border2); text-align: center;
  font-size: 0.82rem; font-weight: 600; cursor: pointer;
  transition: all 0.15s; color: var(--text2);
}
.task-toggle input:checked + label { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── Accent color palette ── */
.accent-palette { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.accent-swatch {
  width: 28px; height: 28px; border-radius: 50%; cursor: pointer;
  border: 2px solid transparent; transition: transform 0.1s, border-color 0.1s; flex-shrink: 0;
  position: relative;
}
.accent-swatch:hover  { transform: scale(1.15); }
.accent-swatch.selected { border-color: var(--text); transform: scale(1.1); }
.accent-swatch[data-tip]::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 7px);
  left: 50%; transform: translateX(-50%);
  background: var(--bg-card); color: var(--text);
  font-size: 0.62rem; font-weight: 500; white-space: nowrap;
  padding: 0.2rem 0.5rem; border-radius: 4px;
  border: 1px solid var(--border2);
  pointer-events: none; opacity: 0;
  transition: opacity 0.15s; z-index: 200;
}
.accent-swatch[data-tip]:hover::after { opacity: 1; }

/* ── Training success ── */
.train-result { text-align: center; padding: 2rem 1rem; }
.train-result-metric { font-size: 2rem; font-weight: 800; margin-bottom: 0.25rem; }
.train-result-label  { font-size: 0.8rem; color: var(--text3); margin-bottom: 1.5rem; }

/* ── AutoML Dashboard ── */
.aml-imbal-tag { display: inline-block; font-size: 0.62rem; font-weight: 700;
                 text-transform: uppercase; letter-spacing: 0.07em;
                 background: rgba(251,191,36,0.12); color: #fbbf24;
                 border: 1px solid rgba(251,191,36,0.3); border-radius: 9999px;
                 padding: 0.15rem 0.55rem; margin-left: 0.4rem; vertical-align: middle; }
.aml-dashboard { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--border2); }
.aml-hero     { display: flex; align-items: center; gap: 1.25rem; border-radius: 16px;
                padding: 1.4rem 1.6rem; margin-bottom: 1.1rem; border: 1px solid transparent; }
.aml-hero-main    { flex: 1; min-width: 0; }
.aml-hero-label   { font-size: 0.65rem; font-weight: 800; text-transform: uppercase;
                    letter-spacing: 0.12em; margin-bottom: 0.2rem; }
.aml-hero-name    { font-size: 1.55rem; font-weight: 900; color: var(--active-accent, var(--accent-from)); line-height: 1.1;
                    margin-bottom: 0.25rem; }
.aml-hero-sub     { font-size: 0.75rem; color: var(--text3); }
.aml-hero-score   { text-align: right; flex-shrink: 0; }
.aml-hero-score-val   { font-size: 2.1rem; font-weight: 900; line-height: 1; }
.aml-hero-score-lbl   { font-size: 0.63rem; color: var(--text3); text-transform: uppercase;
                        letter-spacing: 0.08em; margin-top: 0.2rem; }
.aml-stats    { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-bottom: 1.1rem; }
.aml-stat     { background: var(--card-bg); border: 1px solid var(--border2); border-radius: 12px;
                padding: 0.85rem 1rem; }
.aml-stat-lbl { font-size: 0.63rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em;
                color: var(--text3); margin-bottom: 0.3rem; }
.aml-stat-val { font-size: 1.1rem; font-weight: 800; color: var(--active-accent, var(--accent-from)); line-height: 1.2; }
.aml-stat-sub { font-size: 0.68rem; color: var(--text3); margin-top: 0.15rem; }
.aml-charts   { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
@media (max-width: 600px) { .aml-charts { grid-template-columns: 1fr; } }
.aml-chart-card   { background: var(--card-bg); border: 1px solid var(--border2); border-radius: 14px;
                    padding: 1.1rem 1.15rem; }
.aml-chart-title  { font-size: 0.82rem; font-weight: 700; color: var(--active-accent, var(--accent-from)); margin-bottom: 0.2rem; }
.aml-chart-sub    { font-size: 0.67rem; color: var(--text3); text-transform: uppercase;
                    letter-spacing: 0.05em; margin-bottom: 1rem; }
.aml-algo-row     { margin-bottom: 0.85rem; }
.aml-algo-header  { display: flex; align-items: center; justify-content: space-between;
                    margin-bottom: 0.3rem; }
.aml-algo-name    { font-size: 0.78rem; font-weight: 600; color: var(--active-accent, var(--accent-from)); }
.aml-algo-name.aml-win { font-weight: 800; color: var(--active-accent, var(--accent-from)); }
.aml-algo-right   { display: flex; align-items: center; gap: 0.45rem; }
.aml-algo-val     { font-size: 0.76rem; font-variant-numeric: tabular-nums; color: var(--active-accent, var(--accent-from)); }
.aml-winner-pill  { font-size: 0.58rem; font-weight: 800; text-transform: uppercase;
                    letter-spacing: 0.08em; padding: 0.15rem 0.5rem; border-radius: 9999px;
                    border: 1px solid transparent; }
.aml-algo-track   { height: 32px; background: var(--bg-input,var(--border2)); border-radius: 8px;
                    overflow: hidden; }
.aml-algo-fill    { height: 100%; border-radius: 8px; width: 0%;
                    transition: width 0.75s cubic-bezier(0.4,0,0.2,1); }
.aml-feat-row     { display: flex; align-items: center; gap: 0.55rem; margin-bottom: 0.55rem; }
.aml-feat-rank    { width: 20px; height: 20px; border-radius: 50%; display: flex; align-items: center;
                    justify-content: center; font-size: 0.6rem; font-weight: 800; flex-shrink: 0;
                    background: var(--border2); color: var(--text3); }
.aml-feat-name    { font-size: 0.73rem; width: 82px; flex-shrink: 0; overflow: hidden;
                    text-overflow: ellipsis; white-space: nowrap; color: var(--text2); }
.aml-feat-track   { flex: 1; height: 22px; background: var(--bg-input,var(--border2));
                    border-radius: 6px; overflow: hidden; }
.aml-feat-fill    { height: 100%; border-radius: 6px; width: 0%;
                    transition: width 0.65s cubic-bezier(0.4,0,0.2,1); }
.aml-feat-pct     { font-size: 0.7rem; font-variant-numeric: tabular-nums; color: var(--text2);
                    width: 36px; text-align: right; flex-shrink: 0; }
.aml-exp-card     { background: var(--card-bg); border: 1px solid var(--border2);
                    border-radius: 14px; padding: 1.1rem 1.2rem; }
.aml-exp-header   { display: flex; align-items: center; justify-content: space-between;
                    margin-bottom: 0.65rem; }
.aml-exp-title-row { display: flex; align-items: center; gap: 0.45rem; }
.aml-exp-title    { font-size: 0.84rem; font-weight: 700; }
.aml-source-badge { font-size: 0.62rem; font-weight: 800; padding: 0.18rem 0.55rem;
                    border-radius: 20px; background: var(--border2); color: var(--text3);
                    letter-spacing: 0.05em; text-transform: uppercase; }
.aml-source-badge.aml-ai { background: rgba(129,140,248,0.2); color: #818cf8;
                            border: 1px solid rgba(129,140,248,0.4); }
.aml-exp-text     { font-size: 0.82rem; color: var(--text2); line-height: 1.65; margin-bottom: 0.75rem; }
.aml-key-row      { display: flex; gap: 0.5rem; align-items: center; margin-top: 0.75rem;
                    padding-top: 0.75rem; border-top: 1px solid var(--border2); }

/* ── Explanation Two-Column Dashboard ── */
.aml-exp-dashboard { display: flex; gap: 1.25rem; align-items: stretch; margin-bottom: 0.5rem; }
.aml-exp-left      { flex: 0 0 45%; display: flex; flex-direction: column; gap: 0.75rem; }
.aml-exp-left .aml-exp-panel:last-child { flex: 1; }
.aml-exp-right     { flex: 0 0 calc(55% - 1.25rem); display: flex; flex-direction: column; gap: 0.75rem; }
.aml-exp-panel     { background: rgba(255,255,255,0.035); border: 1px solid var(--border2);
                     border-radius: 10px; padding: 0.85rem 1rem; }
.aml-exp-panel-title { font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
                       letter-spacing: 0.07em; color: var(--active-accent, var(--accent-from)); margin-bottom: 0.45rem; }
.aml-exp-panel-body  { font-size: 0.82rem; color: var(--text2); line-height: 1.6; }
.aml-exp-recs        { margin: 0; padding-left: 1.1rem; }
.aml-exp-recs li     { margin-bottom: 0.35rem; }
.aml-exp-recs li:last-child { margin-bottom: 0; }
.aml-exp-nodata      { font-size: 0.8rem; color: var(--text3); padding: 0.75rem 0; text-align: center; }
.aml-exp-win-margin  { display: flex; align-items: center; gap: 1rem; padding: 0.7rem 1rem; }
.aml-exp-stat        { display: flex; flex-direction: column; }
.aml-exp-stat-val    { font-size: 1.4rem; font-weight: 800; line-height: 1.1; }
.aml-exp-stat-lbl    { font-size: 0.75rem; color: var(--text3); margin-top: 0.1rem; }
.aml-exp-stat-caption { font-size: 0.72rem; color: var(--text3); margin-left: auto; }
@media (max-width: 640px) {
  .aml-exp-dashboard { flex-direction: column; }
  .aml-exp-left, .aml-exp-right { flex: unset; width: 100%; }
}

/* ── AutoML Results Two-Column Layout ── */
.aml-results-page { width: 100%; }
.aml-results-grid {
  display: grid; grid-template-columns: 260px 1fr;
  gap: 1.5rem; align-items: start; margin-top: 1.5rem;
}
.aml-results-left { }
.aml-results-summary {
  background: var(--card-bg); border: 1px solid var(--border2);
  border-radius: 18px; padding: 2rem 1.5rem; text-align: center;
}
.aml-results-right .aml-dashboard {
  margin-top: 0; padding-top: 0; border-top: none;
}
@media (max-width: 700px) {
  .aml-results-grid { grid-template-columns: 1fr; }
  .aml-results-left { position: static; }
}

/* ── AutoML Analysis Tabs ── */
.aml-tabs-strip { display:flex; gap:0.5rem; margin-top:1.5rem; padding-top:1.25rem; border-top:1px solid var(--border2); }
.aml-tab { padding:0.38rem 1rem; border-radius:9999px; border:1px solid var(--border2);
           background:transparent; color:var(--text2); font-size:0.75rem; font-weight:600;
           cursor:pointer; transition:all 0.2s; }
.aml-tab:hover { border-color:color-mix(in srgb,var(--active-accent,var(--accent-from)) 50%,transparent);
                 color:var(--text); }
.aml-tab.active { background:color-mix(in srgb,var(--active-accent,var(--accent-from)) 12%,transparent);
                  border-color:var(--active-accent,var(--accent-from));
                  color:var(--active-accent,var(--accent-from)); }
.aml-tab-body { margin-top:1rem; }

/* ── Vision Panel ── */
.vision-panel { padding: 0; max-width: 860px; }

.vision-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}
.vision-model-chip {
  padding: 0.6rem 0.75rem; border-radius: 10px;
  border: 1px solid var(--border2); cursor: pointer;
  background: transparent; color: var(--text2);
  text-align: left; transition: all 0.15s; width: 100%;
}
.vision-model-chip:hover { border-color: #e879f9; color: var(--text); }
.vision-model-chip.selected { border-color: #e879f9; background: rgba(232,121,249,0.1); color: var(--text); }
.vmchip-label { font-size: 0.82rem; font-weight: 700; }
.vmchip-desc  { font-size: 0.68rem; color: var(--text3); margin-top: 0.2rem; }
.vision-model-chip.selected .vmchip-desc { color: #d946ef; }

.vision-preview-img {
  width: 140px; height: 140px; object-fit: cover;
  border-radius: 12px; border: 1px solid var(--border2); display: block;
}

.vision-result-layout {
  display: flex; gap: 1.5rem; align-items: flex-start; flex-wrap: wrap;
}
.vision-result-thumb { flex-shrink: 0; text-align: center; }
.vision-result-preds { flex: 1; min-width: 200px; }

/* ── Batch classify grid ── */
.batch-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr));
  gap: 0.9rem; margin-top: 1.25rem;
}
.batch-card {
  border-radius: 12px; overflow: hidden;
  background: var(--bg-card); border: 1px solid var(--border2);
  box-shadow: var(--shadow); transition: border-color 0.3s;
}
.batch-card--done  { border-color: color-mix(in srgb,#e879f9 35%,transparent); }
.batch-card--low   { border-color: color-mix(in srgb, var(--color-warning) 40%, transparent); }
.batch-card--error { border-color: color-mix(in srgb, var(--color-danger)  35%, transparent); }
.batch-card-img {
  width: 100%; aspect-ratio: 1; object-fit: cover; display: block;
}
.batch-card-body { padding: 0.6rem 0.7rem; }
.batch-card-filename {
  font-size: 0.65rem; color: var(--text3); white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis; margin-bottom: 0.3rem;
}
.batch-card-status { font-size: 0.72rem; color: var(--text3); }
.batch-card-top-label { font-size: 0.8rem; font-weight: 700; color: var(--text); line-height: 1.3; margin-bottom: 0.18rem; }
.batch-card-top-conf  { font-size: 0.82rem; font-weight: 800; }
.batch-card-top2 { font-size: 0.62rem; color: var(--text3); margin-top: 0.3rem; line-height: 1.55; }
.batch-progress-wrap { margin: 0.9rem 0 0.25rem; }
.batch-progress-bar-bg { height: 4px; background: var(--border2); border-radius: 9999px; overflow: hidden; margin-top: 0.35rem; }
.batch-progress-bar-fill { height: 100%; background: #e879f9; border-radius: 9999px; width: 0%; transition: width 0.3s ease; }

/* ── Image Processing Panel ── */
.ip-ops-grid {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem;
}
.ip-op-chip {
  padding: 0.35rem 0.75rem; border-radius: 20px;
  border: 1px solid var(--border2); cursor: pointer;
  background: transparent; color: var(--text2);
  font-size: 0.78rem; font-weight: 600; transition: all 0.15s;
}
.ip-op-chip:hover { border-color: #fb923c; color: var(--text); }
.ip-op-chip.selected { border-color: #fb923c; background: rgba(251,146,60,0.12); color: var(--text); }

.ip-before-after {
  display: flex; gap: 1.25rem; margin-top: 1.5rem; flex-wrap: wrap;
}
.ip-image-box { flex: 1; min-width: 200px; }
.ip-image-label {
  font-size: 0.65rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text3); margin-bottom: 0.5rem;
}
.ip-image-result {
  width: 100%; border-radius: 12px; border: 1px solid var(--border2);
  object-fit: contain; max-height: 340px; display: block;
  background: var(--bg-input);
}

/* ── Object Detection Panel ── */
.det-conf-row {
  display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1.25rem;
}
.det-conf-row input[type=range] { flex: 1; accent-color: var(--active-accent,var(--accent-from)); }
.det-conf-val { font-size: 0.82rem; font-weight: 700; color: var(--active-accent,var(--accent-from)); min-width: 36px; }

.det-result-img {
  width: 100%; border-radius: 12px; border: 1px solid var(--border2);
  display: block; margin-bottom: 1rem;
}
.det-tag {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.25rem 0.6rem; border-radius: 20px;
  font-size: 0.75rem; font-weight: 600; margin: 0.2rem;
}
.det-tag-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }

/* ── Image Segmentation Panel ── */
.seg-class-list {
  display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.75rem;
}
.seg-class-chip {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.22rem 0.55rem; border-radius: 20px;
  font-size: 0.74rem; font-weight: 600;
}
.seg-chip-swatch { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.seg-result-img {
  width: 100%; border-radius: 12px; border: 1px solid var(--border2);
  display: block; margin-bottom: 1rem;
}

/* ── EDA Explorer Panel ── */
.eda-panel { padding:0; max-width:960px; }
.eda-header { margin-bottom:1.75rem; padding-top:0; }

/* Section cards */
.eda-section-card {
  background:var(--bg-card);
  border:1px solid var(--border2);
  border-radius:16px; padding:1.35rem; margin-bottom:1.25rem;
  box-shadow:var(--shadow);
  opacity:0; transform:translateY(16px);
  transition:opacity 0.4s ease, transform 0.4s ease;
}
.eda-section-card.eda-visible { opacity:1; transform:translateY(0); }
.eda-section-card:hover { box-shadow:0 6px 28px rgba(0,0,0,0.1); }

/* Section title — gradient left accent */
.eda-section-title {
  font-size:0.72rem; font-weight:700; color:var(--text2);
  text-transform:uppercase; letter-spacing:0.08em;
  margin-bottom:1rem; display:flex; align-items:center; gap:0.5rem;
  padding-left:0.8rem; position:relative;
}
.eda-section-title::before {
  content:''; position:absolute; left:0; top:50%;
  transform:translateY(-50%);
  width:3px; height:100%; min-height:14px;
  background:linear-gradient(180deg,var(--active-accent,var(--accent-from)),var(--accent-via));
  border-radius:4px;
}

/* Sticky nav */
.eda-sticky-nav {
  position:sticky; top:0; z-index:10;
  background:var(--bg); border-bottom:1px solid var(--border);
  display:flex; gap:0.25rem; padding:0.5rem 0;
  margin:-0.25rem 0 1.25rem; overflow-x:auto; scrollbar-width:none;
}
.eda-sticky-nav::-webkit-scrollbar { display:none; }
.eda-nav-tab {
  padding:0.3rem 0.8rem; border-radius:20px; font-size:0.72rem;
  font-weight:600; color:var(--text2); cursor:pointer;
  background:transparent; border:1px solid transparent;
  white-space:nowrap; transition:all 0.18s;
}
.eda-nav-tab:hover {
  background:color-mix(in srgb, var(--active-accent,var(--accent-from)) 10%, transparent);
  color:var(--active-accent,var(--accent-from));
  border-color:color-mix(in srgb, var(--active-accent,var(--accent-from)) 25%, transparent);
}
.eda-nav-tab.eda-nav-active {
  background:color-mix(in srgb, var(--active-accent,var(--accent-from)) 14%, transparent);
  color:var(--active-accent,var(--accent-from));
  border-color:color-mix(in srgb, var(--active-accent,var(--accent-from)) 40%, transparent);
}

/* Overview chip grid */
.eda-overview-grid { display:grid; grid-template-columns:repeat(5,1fr); gap:0.75rem; }
.eda-chip {
  border-radius:12px; padding:1rem 0.75rem; text-align:center;
  border:1px solid rgba(255,255,255,0.08);
  transition:transform 0.2s ease, box-shadow 0.2s ease;
  position:relative; overflow:hidden;
}
.eda-chip::after {
  content:''; position:absolute; inset:0;
  background:linear-gradient(135deg,rgba(255,255,255,0.04),transparent);
  pointer-events:none;
}
.eda-chip:hover { transform:translateY(-3px); box-shadow:0 8px 20px rgba(0,0,0,0.2); }
.eda-chip-rows    { background:rgba(52,211,153,0.09);  border-color:rgba(52,211,153,0.2); }
.eda-chip-cols    { background:rgba(56,189,248,0.09);  border-color:rgba(56,189,248,0.2); }
.eda-chip-missing { background:rgba(251,191,36,0.09);  border-color:rgba(251,191,36,0.2); }
.eda-chip-dups    { background: var(--color-danger-bg); border-color: color-mix(in srgb, var(--color-danger) 30%, transparent); }
.eda-chip-quality { background:rgba(167,139,250,0.09); border-color:rgba(167,139,250,0.2); }
[data-theme="light"] .eda-chip { border-color:rgba(0,0,0,0.1); }
.eda-chip-icon  { font-size:1.1rem; display:block; margin-bottom:0.3rem; }
.eda-chip-val   { font-size:1.4rem; font-weight:800; color:var(--text); line-height:1.1; }
.eda-chip-label { font-size:0.6rem; color:var(--text3); margin-top:5px; text-transform:uppercase; letter-spacing:0.06em; }

/* Quality ring */
.eda-quality-ring { display:flex; align-items:center; justify-content:center; margin-bottom:0.2rem; }
.eda-ring-track { fill:none; stroke:rgba(255,255,255,0.1); stroke-width:5; }
[data-theme="light"] .eda-ring-track { stroke:rgba(0,0,0,0.1); }
.eda-ring-fill  { fill:none; stroke-width:5; stroke-linecap:round;
  transform:rotate(-90deg); transform-origin:50% 50%;
  transition:stroke-dashoffset 1.3s cubic-bezier(0.4,0,0.2,1); }
.eda-ring-num   { font-size:11px; font-weight:800; text-anchor:middle; dominant-baseline:middle; fill:var(--text); }

/* Insight cards */
.eda-insight {
  display:flex; align-items:flex-start; gap:0.6rem;
  padding:0.65rem 0.9rem; border-radius:10px; font-size:0.8rem;
  line-height:1.5; margin-bottom:0.5rem;
  border-left:3px solid; backdrop-filter:blur(8px);
}
.eda-insight-danger  { background: var(--color-danger-bg);  border-color: var(--color-danger);  }
.eda-insight-warning { background: var(--color-warning-bg); border-color: var(--color-warning); }
.eda-insight-info    { background: var(--color-info-bg);    border-color: var(--color-info);    }

/* Tables */
.eda-table { width:100%; border-collapse:collapse; font-size:0.82rem; }
.eda-table th {
  padding:0.5rem 0.75rem; text-align:left;
  font-size:0.63rem; font-weight:700; text-transform:uppercase;
  letter-spacing:0.07em; color:var(--text3);
  border-bottom:1px solid var(--border);
  background:var(--bg);
}
.eda-table td { padding:0.45rem 0.75rem; border-bottom:1px solid var(--border); color:var(--text2); }
.eda-table tbody tr:hover td { background:color-mix(in srgb,var(--active-accent,var(--accent-from)) 5%,transparent); }
.eda-type-badge { display:inline-block; padding:2px 8px; border-radius:20px; font-size:0.6rem; font-weight:700; }
.eda-type-num { background: var(--color-info-bg); color: var(--color-info); }
.eda-type-cat { background:rgba(167,139,250,0.15); color:#a78bfa; }

/* Distribution grid */
.eda-dist-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(300px,1fr)); gap:1rem; }
.eda-dist-card {
  background:var(--bg-card); border:1px solid var(--border2);
  border-radius:10px; padding:0.85rem;
  transition:border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.eda-dist-card:hover {
  border-color:color-mix(in srgb,var(--active-accent,var(--accent-from)) 40%,transparent);
  transform:translateY(-2px); box-shadow:var(--shadow);
}
.eda-dist-title {
  font-size:0.72rem; font-weight:700; color:var(--text2);
  margin-bottom:0.25rem; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.eda-dist-plot { height:160px; }
.eda-corr-plot { width:100%; }

/* ── Unsupervised Panel ── */
.u-panel { padding:0; max-width: 860px; }
.u-header { padding-top:2rem; margin-bottom:1.75rem; }
.eda-header { padding-top:2rem; }
.u-dot    { display:none; }
.u-title  { font-size:1.8rem; font-weight:800; letter-spacing:-0.03em; line-height:1.15; color:var(--text); }
.u-subtitle { font-size:0.88rem; color:var(--text2); line-height:1.65; margin-top:0.5rem; max-width:520px; }
.u-upload-section { margin-bottom:1.25rem; }
.u-param-row  { display:flex; align-items:center; gap:1rem; margin-bottom:0.75rem; }
.u-param-row .wizard-label { min-width:220px; margin-bottom:0; }
.u-result      { display:flex; gap:1.5rem; margin-top:1.5rem; flex-wrap:wrap; }
.u-result-plot { position:relative; flex:1; min-width:280px; }
.u-result-stats { min-width:200px; flex:0 0 auto; }
.u-axis-label  { font-size:0.7rem; color:var(--text3); text-align:center; }
.u-axis-y      { position:absolute; left:-30px; top:50%; transform:translateY(-50%) rotate(-90deg); font-size:0.7rem; color:var(--text3); white-space:nowrap; }
.u-stat-row    { display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:0.35rem 0; font-size:0.83rem; color:var(--text2); }
.u-stat-divider { border-top:1px solid var(--border1); margin:0.5rem 0; }

/* ══ Animation system ═══════════════════════════════════════════ */

/* Keyframes */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes panelIn {
  from { opacity: 0; transform: translateY(36px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes dotPulse {
  0%   { transform: scale(1); }
  45%  { transform: scale(2.2); box-shadow: 0 0 18px var(--active-accent,#818cf8); }
  100% { transform: scale(1); }
}
@keyframes shimmer {
  from { background-position: 200% center; }
  to   { background-position: -200% center; }
}
@keyframes progressShimmer {
  0%   { left: -60%; }
  100% { left: 160%; }
}
@keyframes successFlash {
  0%   { background: linear-gradient(135deg,#34d399,#10b981); box-shadow: 0 4px 22px rgba(52,211,153,0.55); }
  100% { background: linear-gradient(135deg,#6366f1,#38bdf8); box-shadow: 0 4px 16px rgba(99,102,241,0.35); }
}
@keyframes blobDrift1 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%      { transform: translate(55px,-40px) scale(1.09); }
}
@keyframes blobDrift2 {
  0%,100% { transform: translate(0,0) scale(1); }
  50%      { transform: translate(-42px,28px) scale(1.06); }
}

/* Particle canvas */
#bg-canvas {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  pointer-events: none; z-index: 0;
}

/* Ambient blobs */
.bg-blob {
  position: fixed; border-radius: 50%;
  pointer-events: none; z-index: 0; filter: blur(72px);
  transition: background 1.5s ease;
}
.bg-blob-1 {
  width: 560px; height: 560px; top: -150px; left: -150px;
  background: rgba(99,102,241,0.14);
  animation: blobDrift1 20s ease-in-out infinite;
}
.bg-blob-2 {
  width: 440px; height: 440px; bottom: 60px; right: -100px;
  background: rgba(56,189,248,0.11);
  animation: blobDrift2 26s ease-in-out infinite;
}
[data-theme="light"] .bg-blob-1 { background: rgba(99,102,241,0.14); }
[data-theme="light"] .bg-blob-2 { background: rgba(56,189,248,0.11); }

/* Layer content above canvas/blobs */
.gradient-top-bar, nav, .layout { position: relative; z-index: 1; }

/* Sidebar item entrance */
.sb-anim {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.sb-anim.sb-visible { opacity: 1; transform: translateY(0); }

/* Active dot pulse */
.dot-pulse { animation: dotPulse 0.45s ease forwards; }

/* Predict button shimmer */
.btn-shimmer {
  background: linear-gradient(90deg,#6366f1,#818cf8,#38bdf8,#818cf8,#6366f1) !important;
  background-size: 300% auto !important;
  animation: shimmer 1.2s linear infinite !important;
  box-shadow: 0 4px 24px rgba(99,102,241,0.5) !important;
}

/* Predict button success flash */
.btn-success-flash { animation: successFlash 0.85s ease forwards !important; }

/* Result card entrance */
.result-reveal { animation: panelIn 0.38s cubic-bezier(0.22,1,0.36,1) both; }

@media print {
  nav, .sidebar, #topbar, .upload-zone, .eda-sticky-nav, #eda-export-btn { display:none !important; }
  body { background:#fff !important; color:#000 !important; }
  .eda-panel { max-width:100%; padding:0; }
  .eda-section-card {
    background:#fff !important; border:1px solid #ddd !important;
    box-shadow:none !important; opacity:1 !important; transform:none !important;
    break-inside:avoid; page-break-inside:avoid;
  }
  .eda-section-title { color:#333 !important; }
  .eda-section-title::before { background:#34d399 !important; }
  .eda-table th, .eda-table td { color:#333 !important; border-color:#ddd !important; }
  .eda-chip { border:1px solid #ddd !important; background:#f9f9f9 !important; }
  .eda-chip-val, .eda-chip-label, .eda-ring-num { color:#111 !important; fill:#111 !important; }
  .eda-ring-track { stroke:#ddd !important; }
  .eda-insight { border-left-width:3px !important; }
  #main { overflow:visible !important; }
}