:root {
  /* Default Dark Theme */
  --bg:           #080d1a;
  --bg-alt:       #0d1426;
  --surface:      #111827;
  --surface2:     #0f1729;
  --border:       rgba(255, 255, 255, 0.08);
  --border2:      rgba(255, 255, 255, 0.15);
  --text:         #f8fafc;
  --text-dim:     #94a3b8;
  --text-muted:   #64748b;
  --accent:       #4338ca; /* Deep formal Indigo */
  --accent2:      #4f46e5;
  --accent-soft:  rgba(67, 56, 202, 0.1);
  
  --nav-bg:       rgba(8, 13, 26, 0.7);
  --hero-gradient: linear-gradient(145deg, #0d1427 0%, #0a0f1e 40%, #120823 100%);

  /* Shared Utils */
  --radius:       16px;
  --radius-sm:    10px;
  --pink:         #ec4899;
  --amber:        #f59e0b;
  --green:        #10b981;
  --scrollbar-thumb: rgba(255, 255, 255, 0.1);
}

/* ── Custom Scrollbar ────────────────────────────────────────────────────── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 10px;
  border: 2px solid transparent;
  background-clip: content-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  background-clip: content-box;
}

/* Firefox support */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--scrollbar-thumb) transparent;
}

[data-theme="light"] {
  --bg:           #e2e8f0; /* Soft Slate/Oyster Grey */
  --bg-alt:       #cbd5e1;
  --surface:      #f1f5f9;
  --surface2:     #e2e8f0;
  --border:       rgba(0, 0, 0, 0.08);
  --border2:      rgba(0, 0, 0, 0.12);
  --text:         #1e293b;
  --text-dim:     #475569;
  --text-muted:   #64748b;
  --accent:       #312e81; /* Deepest Indigo for Light Mode contrast */
  --accent2:      #3730a3;
  --scrollbar-thumb: rgba(0, 0, 0, 0.1);
  --accent-soft:  rgba(49, 46, 129, 0.08);
  
  --nav-bg:       rgba(226, 232, 240, 0.85);
  --hero-gradient: linear-gradient(145deg, #cbd5e1 0%, #e2e8f0 40%, #dee5ed 100%);
}

/* ── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  padding-top: 64px;
}

/* ── Navbar ───────────────────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 64px;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-container {
  width: 100%;
  max-width: 1400px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--text);
  text-decoration: none;
  background: linear-gradient(to right, var(--text), var(--text-dim));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  cursor: default;
}

.nav-brand.active-link {
  cursor: pointer;
  pointer-events: auto;
}
.nav-brand.active-link:hover { opacity: 0.8; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-btn-upload {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: var(--text);
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
}

.nav-btn-upload:hover {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.nav-toggle {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.nav-toggle:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--hero-gradient);
  border-bottom: 1px solid var(--border);
  padding: 72px 24px 56px;
  text-align: center;
}

.hero-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(99,102,241,.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(236,72,153,.1) 0%, transparent 60%);
}

.hero-content { position: relative; max-width: 760px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.35);
  color: var(--accent2);
  padding: 6px 18px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .06em;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 16px;
}

.gradient-text {
  background: linear-gradient(135deg, #818cf8, #ec4899, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto 28px;
}

.hero-chips {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 10px;
}

.chip {
  background: rgba(255,255,255,.05);
  border: 1px solid var(--border2);
  color: var(--text-dim);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: .78rem;
}

/* ── Layout ───────────────────────────────────────────────────────────────── */
.container { max-width: 1300px; margin: 0 auto; padding: 48px 24px; }
.section    { margin-bottom: 48px; }

.section-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.title-accent { color: var(--accent2); }

/* ── Drop Zone ────────────────────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--border2);
  border-radius: var(--radius);
  padding: 64px 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color .25s, background .25s, transform .2s;
  background: linear-gradient(145deg, var(--surface), var(--surface2));
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(99,102,241,.06);
  transform: translateY(-2px);
}

.drop-icon svg {
  width: 52px; height: 52px;
  color: var(--accent2);
  margin-bottom: 20px;
  transition: transform .3s;
}

.drop-zone:hover .drop-icon svg { transform: translateY(-6px); }

.drop-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.drop-sub { color: var(--text-muted); font-size: .9rem; }

.drop-link {
  color: var(--accent2);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-style: dotted;
}

.error-msg {
  color: #f87171;
  font-size: .875rem;
  margin-top: 12px;
  text-align: center;
}

/* ── Preview Section ──────────────────────────────────────────────────────── */
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.preview-meta {
  display: flex; gap: 16px; flex-wrap: wrap;
}

.meta-badge {
  background: rgba(99,102,241,.12);
  border: 1px solid rgba(99,102,241,.25);
  color: var(--accent2);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
}

.target-picker {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 24px;
}

.picker-label {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.picker-icon { font-size: 1.1rem; margin-right: 6px; }
.picker-hint { color: var(--text-muted); font-weight: 400; font-size: .82rem; }

.target-select {
  width: 100%;
  max-width: 420px;
  background: var(--bg-alt);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 10px 16px;
  font-size: .95rem;
  font-family: inherit;
  cursor: pointer;
  appearance: none;
  outline: none;
  transition: border-color .2s;
}

.target-select:focus { border-color: var(--accent); }

.preview-table-wrap {
  margin-bottom: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.table-label {
  padding: 14px 20px;
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  border-bottom: 1px solid var(--border);
}

.table-scroll { overflow-x: auto; }

.preview-table { 
  width: 100%; 
  border-collapse: collapse; 
  table-layout: auto;
}

.preview-table th {
  padding: 14px 20px;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.preview-table td {
  padding: 12px 20px;
  font-size: 0.85rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  max-width: 250px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: background 0.2s;
}

.preview-table tr:hover td {
  background: rgba(99, 102, 241, 0.03);
}

.preview-table .target-col {
  color: var(--pink);
}

.preview-table th.target-col {
  background: rgba(236, 72, 153, 0.05);
  color: var(--pink);
}

.preview-table td.target-col {
  font-weight: 700;
  background: rgba(236, 72, 153, 0.02);
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all .25s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover {
  background: var(--accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.btn-icon { font-size: 1.2rem; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 8px 18px;
  font-size: .85rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-ghost:hover { border-color: var(--accent2); color: var(--accent2); }

.btn-ghost-lg {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  padding: 13px 32px;
  font-size: .95rem;
  font-family: inherit;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-ghost-lg:hover { border-color: var(--accent2); color: var(--accent2); }

/* ── Loader ───────────────────────────────────────────────────────────────── */
.loader-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px 32px;
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
}

.spinner-ring {
  width: 60px; height: 60px;
  border: 4px solid rgba(99,102,241,.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 28px;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loader-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.loader-sub {
  color: var(--text-muted);
  font-size: .9rem;
  margin-bottom: 32px;
}

.loader-steps {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.step {
  padding: 6px 16px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all .4s;
}

.step.active {
  background: rgba(99,102,241,.15);
  border-color: var(--accent2);
  color: var(--accent2);
  box-shadow: 0 0 12px rgba(99,102,241,.25);
}

.step.done {
  background: rgba(16,185,129,.12);
  border-color: var(--green);
  color: var(--green);
}

/* ── Info Bar ─────────────────────────────────────────────────────────────── */
.info-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 36px;
  padding: 18px 20px;
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  align-items: center;
}

.actions-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  justify-content: flex-end;
}

.actions-bar .btn-ghost {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--surface);
  font-weight: 600;
}

.actions-bar .btn-ghost:hover {
  background: var(--bg-alt);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.info-tag {
  background: rgba(99,102,241,.1);
  border: 1px solid rgba(99,102,241,.25);
  color: var(--accent2);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 600;
}

.info-tag.green {
  background: rgba(16,185,129,.1);
  border-color: rgba(16,185,129,.25);
  color: var(--green);
}

.info-tag.pink {
  background: rgba(236,72,153,.1);
  border-color: rgba(236,72,153,.25);
  color: var(--pink);
}

/* ── KPI Cards ────────────────────────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 36px;
}

.kpi-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform .2s, border-color .2s;
}

.kpi-card:hover { transform: translateY(-3px); border-color: var(--border2); }

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-bar, linear-gradient(90deg, var(--accent), var(--pink)));
}

.kpi-label {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}

.kpi-sub { font-size: .8rem; color: var(--text-muted); }

/* ── Legend ───────────────────────────────────────────────────────────────── */
.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 28px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-dim);
}

.legend-dot {
  width: 12px; height: 12px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ── Charts ───────────────────────────────────────────────────────────────── */
.charts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}

@media(max-width: 1200px) {
  .charts-grid { grid-template-columns: repeat(2, 1fr); }
}

@media(max-width: 768px) {
  .charts-grid { grid-template-columns: 1fr; }
}

.chart-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.chart-card h4 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.chart-card .chart-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.chart-interpretation {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.interp-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.interp-item .badge {
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  font-weight: 800;
  font-size: 0.65rem;
}

.interp-item .badge.excellent {
  background: rgba(16, 185, 129, 0.1);
  color: var(--green);
}

.interp-item .badge.poor {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
}

canvas { max-height: 260px; }

/* ── Results Table ────────────────────────────────────────────────────────── */
.table-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 40px;
}

.results-table { width: 100%; border-collapse: collapse; }

.results-table th {
  padding: 14px 20px;
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
}

.results-table td {
  padding: 14px 20px;
  font-size: 0.875rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  white-space: nowrap;
}

.results-table tr:hover td { background: rgba(255,255,255,.02); }
.results-table tr:last-child td { border-bottom: none; }

.mono { font-family: 'Courier New', monospace; font-weight: 600; }
.col-excellent { color: #10b981; }
.col-good      { color: #6366f1; }
.col-fair      { color: #f59e0b; }
.col-poor      { color: #f87171; }

.model-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  margin-right: 7px;
  flex-shrink: 0;
}

.task-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .7rem;
  font-weight: 700;
}

.badge-clf {
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.3);
  color: var(--accent2);
}

.badge-reg {
  background: rgba(16,185,129,.15);
  border: 1px solid rgba(16,185,129,.3);
  color: var(--green);
}

/* ── Recommendation ───────────────────────────────────────────────────────── */
.rec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, auto);
  gap: 32px;
  margin-bottom: 60px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* Corner & Center Mapping */
.rec-card.best_overall { grid-area: 2 / 2 / 3 / 3; z-index: 2; transform: scale(1.05); }
.rec-card.production   { grid-area: 1 / 1 / 2 / 2; }
.rec-card.best_accuracy { grid-area: 1 / 3 / 2 / 4; }
.rec-card.best_speed    { grid-area: 3 / 1 / 4 / 2; }
.rec-card.best_consistency { grid-area: 3 / 3 / 4 / 4; }

/* Mobile Fallback */
@media (max-width: 1100px) {
  .rec-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 20px;
  }
  .rec-card { grid-area: auto !important; transform: none !important; }
}

.rec-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease;
  display: flex;
  flex-direction: column;
}

.rec-card:hover { transform: translateY(-5px) scale(1.02); }
.rec-card.best_overall:hover { transform: scale(1.08); }

.rec-card.winner {
  border-color: rgba(236,72,153,0.5);
  background: linear-gradient(145deg, rgba(236,72,153,0.1), var(--surface2));
  box-shadow: 0 0 30px rgba(236,72,153,0.15);
}

.rec-card.winner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--pink), var(--accent));
}

.rec-card:not(.winner)::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #4f46e5);
}

.rec-type {
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.rec-model-name {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.rec-trophy { font-size: 1.3rem; }

.rec-score {
  display: inline-block;
  background: rgba(99,102,241,.15);
  border: 1px solid rgba(99,102,241,.3);
  color: var(--accent2);
  padding: 3px 12px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  margin-bottom: 12px;
  font-family: 'Courier New', monospace;
}

.rec-reason {
  font-size: .85rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ── Reset Bar ────────────────────────────────────────────────────────────── */
.reset-bar {
  text-align: center;
  padding-top: 8px;
}

/* ── Ensemble Analysis Cards ──────────────────────────────────────────────── */
.ensemble-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.ens-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: transform .2s, border-color .2s;
}

.ens-card:hover { transform: translateY(-3px); border-color: var(--border2); }

.ens-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--ens-color, var(--accent));
}

.ens-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.ens-emoji { font-size: 1.4rem; }

.ens-name {
  font-size: 1.2rem;
  font-weight: 800;
  flex: 1;
}

.ens-type-badge {
  background: rgba(255,255,255,.06);
  border: 1px solid var(--border2);
  color: var(--text-dim);
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
}

.ens-score {
  margin-bottom: 6px;
}

.ens-score-val {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  font-family: 'Courier New', monospace;
}

.ens-score-label {
  font-size: .8rem;
  color: var(--text-muted);
}

.ens-gain {
  margin-bottom: 12px;
  font-size: .82rem;
  font-weight: 600;
}

.gain-pos { color: #10b981; }
.gain-neg { color: #f87171; }

.ens-meta {
  font-size: .8rem;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.ens-desc {
  font-size: .82rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 16px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.ens-components-label {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.ens-components {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.comp-pill {
  padding: 4px 12px;
  border: 1px solid;
  border-radius: 999px;
  font-size: .76rem;
  font-weight: 600;
  background: rgba(255,255,255,.04);
}

.ens-footer {
  font-size: .75rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

/* ── Resume Card ────────────────────────────────────────────────────────── */
.resume-card {
  background: linear-gradient(145deg, var(--surface), var(--surface2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 600px;
  margin: 0 auto;
}

.resume-icon {
  font-size: 2.5rem;
  background: rgba(99,102,241,0.1);
  width: 80px; height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(99,102,241,0.2);
}

.resume-content h3 {
  margin-bottom: 4px;
  font-size: 1.25rem;
  font-weight: 700;
}

.resume-content p {
  color: var(--text-dim);
  margin-bottom: 20px;
}

.resume-actions {
  display: flex;
  gap: 12px;
}


/* ── Playground ───────────────────────────────────────────────────────────── */
.playground-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 60px;
}

.playground-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 40px;
}

@media (max-width: 1000px) {
  .playground-layout { grid-template-columns: 1fr; }
}

.playground-intro {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 30px;
  line-height: 1.6;
}

.playground-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}

.playground-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.playground-field label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.playground-field input {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.playground-field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.playground-output {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.output-card {
  background: linear-gradient(145deg, var(--surface2), var(--surface));
  border: 1px solid var(--border);
  padding: 30px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.output-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.prediction-main {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 8px;
  font-family: 'JetBrains Mono', monospace;
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
}

.prediction-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.prob-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: left;
}

.prob-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.prob-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
}

.prob-bar-bg {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.prob-bar-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.3s ease;
}

.footer {
  text-align: center;
  padding: 24px;
  color: #2a3a5a;
  font-size: .78rem;
  border-top: 1px solid var(--border);
}

/* ── Utilities ────────────────────────────────────────────────────────────── */
[hidden] { display: none !important; }

/* Landing Page Specific Overrides & Additions */
.landing-hero {
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 4rem 2rem;
  background: var(--hero-gradient);
}
.landing-hero-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(162, 59, 255, 0.25) 0%, rgba(255, 94, 98, 0.15) 40%, transparent 70%);
  transform: translate(-50%, -50%);
  filter: blur(80px);
  z-index: 0;
  animation: pulseGlow 8s infinite alternate ease-in-out;
}
@keyframes pulseGlow {
  0% { transform: translate(-50%, -50%) scale(1); opacity: 0.8; }
  100% { transform: translate(-50%, -50%) scale(1.1); opacity: 1; }
}
.landing-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}
.landing-title {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
  color: var(--text);
}
.landing-title .gradient-text {
  background: linear-gradient(135deg, #a23bff, #ff5e62, #ff9966);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 5s ease infinite;
  background-size: 200% 200%;
}
@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.landing-subtitle {
  font-size: 1.25rem;
  color: var(--text-dim);
  max-width: 700px;
  margin: 0 auto 3rem auto;
  line-height: 1.6;
}
.cta-container {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 4rem;
}
.btn-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1.1rem 2.8rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}
.btn-cta:hover {
  background: var(--accent2);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 9999px;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: var(--bg-alt);
  transform: translateY(-3px);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem 5rem 2rem;
  position: relative;
  z-index: 1;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: left;
  backdrop-filter: blur(16px);
  transition: all 0.4s ease;
}
.feature-card:hover {
  transform: translateY(-10px);
  background: var(--surface2);
  border-color: var(--accent);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}
.feature-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  display: inline-block;
  background: linear-gradient(135deg, #a23bff, #ff5e62);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}
.feature-card p {
  color: var(--text-dim);
  line-height: 1.6;
  font-size: 0.95rem;
}
.models-banner {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
  text-align: center;
  margin-bottom: 2rem;
}
.models-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 3rem;
  align-items: center;
  opacity: 0.7;
}
.model-item {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .landing-title { font-size: 3rem; }
  .cta-container { flex-direction: column; }
}

/* ── How It Works ───────────────────────────────────────────────────────── */
.how-it-works {
  padding: 4rem 2rem 8rem;
  text-align: center;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.workflow-container {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 1rem;
  max-width: 1400px;
  margin: 4rem auto 0;
  flex-wrap: nowrap;
}

.workflow-step {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  position: relative;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  min-width: 180px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.workflow-step:hover {
  transform: translateY(-10px);
  border-color: var(--accent);
  background: var(--surface2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.step-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.3));
}

.step-num {
  font-size: 0.85rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: 0.1em;
}

.workflow-step h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
}

.workflow-step p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
}

.workflow-arrow {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  font-size: 1.5rem;
  opacity: 0.3;
  transition: all 0.3s;
}

.workflow-step:hover + .workflow-arrow {
  opacity: 0.8;
  color: var(--accent);
  transform: scale(1.2);
}

@media (max-width: 1200px) {
  .workflow-container { flex-wrap: wrap; gap: 2rem; }
  .workflow-arrow { display: none; }
  .workflow-step { min-width: 280px; }
}

/* ── Statistical Rigor ───────────────────────────────────────────────────── */
.rigor-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  margin-bottom: 48px;
  box-shadow: var(--shadow);
}

.rigor-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.rigor-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.rigor-table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.rigor-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.rigor-table th {
  background: var(--bg-alt);
  padding: 16px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

.rigor-table td {
  padding: 16px;
  border-top: 1px solid var(--border);
}

.rigor-table tr:hover {
  background: var(--accent-soft);
}

.rank-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-weight: 800;
  font-size: 0.85rem;
  margin-right: 12px;
}

.rank-1 { background: var(--accent); color: white; box-shadow: 0 0 10px var(--accent-soft); }
.rank-2 { background: var(--bg-alt); color: var(--text); }

.stability-bar {
  height: 6px;
  width: 100px;
  background: var(--bg-alt);
  border-radius: 10px;
  overflow: hidden;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}

.stability-fill {
  height: 100%;
  background: var(--accent);
}

.p-value-badge {
  padding: 4px 12px;
  border-radius: 99px;
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.p-value-badge.significant {
  background: var(--green);
  color: white;
}

.p-value-badge.not-significant {
  background: #64748b;
  color: white;
}