frontend/src/index.css

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ═══════════════════════════════════════════════════════════════════════
   QuantHedge Design System — Institutional Light Theme
   Inspired by JP Morgan, Morgan Stanley, BlackRock
   ═══════════════════════════════════════════════════════════════════════ */

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --bg-card: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.92);
  --bg-hover: rgba(0, 82, 65, 0.04);
  --bg-dark: #0c1f1a;
  --bg-dark-secondary: #132b24;

  --text-primary: #1a1a1a;
  --text-secondary: #4a5568;
  --text-muted: #8892a4;
  --text-accent: #005241;
  --text-on-dark: #f0f4f2;
  --text-on-dark-muted: #a3b8b0;

  --accent: #005241;
  --accent-light: #007d63;
  --accent-lighter: #e6f2ef;
  --accent-dark: #003d31;
  --accent-gold: #b8860b;
  --accent-gold-light: #d4a843;
  --green-positive: #0a8f5c;
  --red-negative: #c23030;
  --amber-neutral: #b8860b;
  --blue-info: #1a5276;

  --gradient-accent: linear-gradient(135deg, #005241, #007d63);
  --gradient-dark: linear-gradient(135deg, #0c1f1a 0%, #1a3a2e 50%, #0c1f1a 100%);
  --gradient-hero-overlay: linear-gradient(180deg, rgba(12,31,26,0.85) 0%, rgba(12,31,26,0.7) 50%, rgba(12,31,26,0.9) 100%);
  --gradient-card-hover: linear-gradient(145deg, rgba(0,82,65,0.02), rgba(0,82,65,0.06));

  --border-color: #e2e5ea;
  --border-subtle: #eef0f3;
  --border-accent: rgba(0, 82, 65, 0.2);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-card-hover: 0 10px 40px rgba(0, 0, 0, 0.08);

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;

  --font-serif: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Chart-specific variables */
  --chart-axis: #8892a4;
  --chart-grid: rgba(148, 163, 184, 0.08);
  --chart-tooltip-bg: #ffffff;
  --chart-tooltip-border: #e2e5ea;
  --chart-bar-bg: #f1f5f9;
  --chart-green: #00b386;
  --chart-green-fill: rgba(0, 179, 134, 0.15);
  --error-bg: #fef2f2;
  --error-border: #fecaca;
}

/* ═══════════════════════════════════════════════════════════════════════
   Dark Mode Theme — True Black
   ═══════════════════════════════════════════════════════════════════════ */
[data-theme="dark"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --bg-tertiary: #1c1c1c;
  --bg-card: #111111;
  --bg-glass: rgba(17, 17, 17, 0.92);
  --bg-hover: rgba(0, 125, 99, 0.1);

  --text-primary: #e8e8e8;
  --text-secondary: #a0a8b8;
  --text-muted: #6b7588;
  --text-accent: #00c896;
  --text-on-dark: #f0f4f2;
  --text-on-dark-muted: #a3b8b0;

  --accent: #00a87a;
  --accent-light: #00c896;
  --accent-lighter: rgba(0, 168, 122, 0.12);
  --accent-dark: #008f68;
  --accent-gold: #d4a843;
  --accent-gold-light: #e6c470;
  --green-positive: #10b981;
  --red-negative: #ef4444;
  --amber-neutral: #d4a843;
  --blue-info: #3b82f6;

  --gradient-accent: linear-gradient(135deg, #00a87a, #00c896);
  --gradient-card-hover: linear-gradient(145deg, rgba(0,168,122,0.04), rgba(0,168,122,0.08));

  --border-color: #1f2228;
  --border-subtle: #181b20;
  --border-accent: rgba(0, 168, 122, 0.25);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.2), 0 1px 2px rgba(0,0,0,0.15);
  --shadow-card-hover: 0 10px 40px rgba(0, 0, 0, 0.35);

  --chart-axis: #6b7588;
  --chart-grid: rgba(100, 116, 139, 0.1);
  --chart-tooltip-bg: #1c1c1c;
  --chart-tooltip-border: #2a2d32;
  --chart-bar-bg: #1c1c1c;
  --chart-green: #00d09c;
  --chart-green-fill: rgba(0, 208, 156, 0.2);
  --error-bg: rgba(239, 68, 68, 0.1);
  --error-border: rgba(239, 68, 68, 0.25);
}

/* Dark mode body transition */
body {
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode: badge overrides */
[data-theme="dark"] .badge-primary { background: rgba(0,168,122,0.15); color: var(--accent); }
[data-theme="dark"] .badge-emerald { background: rgba(16,185,129,0.15); color: var(--green-positive); }
[data-theme="dark"] .badge-rose { background: rgba(239,68,68,0.15); color: var(--red-negative); }
[data-theme="dark"] .badge-amber { background: rgba(212,168,67,0.15); color: var(--amber-neutral); }

/* Dark mode: table header */
[data-theme="dark"] th { background: var(--bg-tertiary); }

/* Dark mode: scrollbar */
[data-theme="dark"] ::-webkit-scrollbar-track { background: var(--bg-secondary); }
[data-theme="dark"] ::-webkit-scrollbar-thumb { background: #2a2d32; }
[data-theme="dark"] ::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Dark mode: selection */
[data-theme="dark"] ::selection { background: rgba(0, 168, 122, 0.25); color: var(--text-primary); }

/* Dark mode: React Flow (Strategy Builder) */
[data-theme="dark"] .react-flow__controls { background: var(--bg-tertiary); border-color: var(--border-color); border-radius: var(--radius-md); }
[data-theme="dark"] .react-flow__controls-button { background: var(--bg-card); border-color: var(--border-color); fill: var(--text-secondary); }
[data-theme="dark"] .react-flow__controls-button:hover { background: var(--bg-hover); }
[data-theme="dark"] .react-flow__minimap { background: var(--bg-tertiary) !important; }
[data-theme="dark"] .react-flow__attribution { background: transparent !important; }
[data-theme="dark"] .react-flow__attribution a { color: var(--text-muted) !important; }

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
}

#root { min-height: 100vh; display: flex; flex-direction: column; }

a { color: var(--accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-light); }

/* ── Typography ──────────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-family: var(--font-serif); font-weight: 500; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-family: var(--font-serif); font-weight: 500; }
h3 { font-size: 1rem; font-family: var(--font-sans); font-weight: 600; }

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.text-serif { font-family: var(--font-serif); }
.text-accent { color: var(--accent); }
.mono { font-family: var(--font-mono); font-size: 0.875em; }

/* ── Layout ──────────────────────────────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}
.app-main {
  flex: 1;
  min-width: 0;
  margin-left: 68px;
  transition: margin-left var(--transition-base);
}
.page { flex: 1; padding: 2.5rem 3rem; max-width: 1320px; margin: 0 auto; width: 100%; }
.page-header { margin-bottom: 2rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--border-color); }
.page-header h1 { margin-bottom: 0.25rem; }
.page-header p { color: var(--text-secondary); font-size: 0.95rem; }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 1.75rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-gap { display: flex; gap: 0.75rem; align-items: center; }

/* ── Sidebar ────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 68px;
  background: var(--bg-primary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 200;
}
.sidebar.sidebar-expanded {
  width: 260px;
}

/* Brand */
.sidebar-brand {
  padding: 1.25rem 1.125rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  height: 68px;
  display: flex;
  align-items: center;
}
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
  white-space: nowrap;
}
.sidebar-logo svg {
  flex-shrink: 0;
}
.sidebar-brand-text {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.2s ease 0.05s, transform 0.2s ease 0.05s;
}
.sidebar.sidebar-expanded .sidebar-brand-text {
  opacity: 1;
  transform: translateX(0);
}
.sidebar-brand-text em {
  font-style: normal;
  color: var(--accent);
}

/* Navigation */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0.5rem 0;
}
.sidebar-nav::-webkit-scrollbar { width: 0; }

.sidebar-section {
  padding: 0.5rem 0;
}
.sidebar-section-label {
  padding: 0.375rem 1.4rem;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease 0.05s;
}
.sidebar.sidebar-expanded .sidebar-section-label {
  opacity: 1;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.5rem 1.25rem;
  margin: 1px 0.5rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
  background: transparent;
  width: calc(100% - 1rem);
  text-align: left;
  font-family: var(--font-sans);
}
.sidebar-link:hover {
  background: var(--bg-hover);
  color: var(--accent);
}
.sidebar-link.active {
  background: var(--accent-lighter);
  color: var(--accent);
  font-weight: 600;
}

.sidebar-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sidebar-icon svg {
  width: 18px;
  height: 18px;
}

.sidebar-label {
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.2s ease 0.05s, transform 0.2s ease 0.05s;
}
.sidebar.sidebar-expanded .sidebar-label {
  opacity: 1;
  transform: translateX(0);
}

/* Footer */
.sidebar-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 0.75rem;
  flex-shrink: 0;
}
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0.375rem;
  margin-bottom: 0.375rem;
  white-space: nowrap;
  overflow: hidden;
}
.sidebar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-user-info {
  opacity: 0;
  transition: opacity 0.2s ease 0.05s;
}
.sidebar.sidebar-expanded .sidebar-user-info {
  opacity: 1;
}
.sidebar-user-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
}
.sidebar-user-email {
  font-size: 0.65rem;
  color: var(--text-muted);
}
.sidebar-logout {
  color: var(--text-muted) !important;
}
.sidebar-logout:hover {
  color: var(--red-negative) !important;
  background: rgba(194, 48, 48, 0.05) !important;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-accent);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 0.875rem;
  border-bottom: 1px solid var(--border-subtle);
}
.card-header h3 { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); letter-spacing: 0; }

/* ── Buttons ─────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-light); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm { padding: 0.375rem 0.875rem; font-size: 0.75rem; }
.btn-lg { padding: 0.875rem 2.25rem; font-size: 0.875rem; letter-spacing: 0.08em; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: var(--radius-sm); }

/* ── Form Elements ───────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.375rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.input, select, textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  outline: none;
}
.input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 82, 65, 0.1);
}
.input::placeholder { color: var(--text-muted); }

/* ── Table ───────────────────────────────────────────────────────────── */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}
table { width: 100%; border-collapse: collapse; }
th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border-color);
}
td {
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}
tr:hover td { background: var(--bg-hover); }

/* ── Metrics ─────────────────────────────────────────────────────────── */
.metric { text-align: center; padding: 1.25rem 1rem; }
.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.03em;
}
.metric-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-weight: 600;
}
.positive { color: var(--green-positive); }
.negative { color: var(--red-negative); }
.neutral { color: var(--amber-neutral); }

/* ── Badge ───────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.badge-primary { background: var(--accent-lighter); color: var(--accent); }
.badge-emerald { background: #e6f9f0; color: var(--green-positive); }
.badge-rose { background: var(--error-bg); color: var(--red-negative); }
.badge-amber { background: #fffbeb; color: var(--amber-neutral); }

/* ── Tabs ────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 1.75rem;
}
.tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  color: var(--text-muted);
  border: none;
  background: transparent;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tab:hover { color: var(--text-primary); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ── Loading ─────────────────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem;
  flex-direction: column;
  gap: 1rem;
  color: var(--text-muted);
}

/* ── Animations ──────────────────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
.animate-fade-in { animation: fadeIn 0.6s ease-out; }
.animate-fade-in-up { animation: fadeInUp 0.7s ease-out; }

/* ── Chart ───────────────────────────────────────────────────────────── */
.chart-container {
  width: 100%;
  height: 350px;
  border-radius: var(--radius-md);
  padding: 0.75rem;
}

/* ── Empty State ─────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4rem 2rem;
  text-align: center;
  color: var(--text-muted);
}
.empty-state h3 { color: var(--text-secondary); margin-bottom: 0.5rem; }
.empty-state p { max-width: 400px; font-size: 0.9rem; line-height: 1.7; }

/* ── Divider ─────────────────────────────────────────────────────────── */
.divider { width: 60px; height: 2px; background: var(--accent); margin: 1rem 0; }

/* ── Professional Icon Container ─────────────────────────────────────── */
.icon-box {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-lighter);
  color: var(--accent);
  flex-shrink: 0;
}
.icon-box svg { width: 22px; height: 22px; }

/* ═══════════════════════════════════════════════════════════════════════
   MOBILE RESPONSIVE — max-width: 768px
   All rules below ONLY apply on mobile. Desktop is untouched.
   ═══════════════════════════════════════════════════════════════════════ */

@media (max-width: 768px) {

  /* ── App Shell ─────────────────────────────────────────────────────── */
  .app-main {
    margin-left: 0 !important;
    padding-bottom: 72px; /* space for bottom tab bar */
  }

  /* ── Desktop Sidebar hidden on mobile ──────────────────────────────── */
  .sidebar:not(.mobile-nav) {
    display: none !important;
  }

  /* ── Mobile Bottom Tab Bar ─────────────────────────────────────────── */
  .mobile-nav {
    display: flex !important;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    z-index: 300;
    padding: 0 0.25rem;
    box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  }
  .mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    width: 100%;
    height: 100%;
  }
  .mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-md);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-sans);
  }
  .mobile-nav-item svg {
    width: 20px;
    height: 20px;
  }
  .mobile-nav-item.active,
  .mobile-nav-item:hover {
    color: var(--accent);
  }

  /* ── Mobile drawer overlay ─────────────────────────────────────────── */
  .mobile-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 400;
    animation: fadeIn 0.2s ease;
  }
  .mobile-drawer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-radius: 20px 20px 0 0;
    padding: 1rem 0.75rem 2rem;
    z-index: 500;
    max-height: 70vh;
    overflow-y: auto;
    animation: slideUp 0.25s ease;
  }
  @keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
  }
  .mobile-drawer-handle {
    width: 36px;
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin: 0 auto 1rem;
  }
  .mobile-drawer .sidebar-link {
    width: 100%;
    padding: 0.75rem 1rem;
    margin: 2px 0;
    font-size: 0.88rem;
    border-radius: var(--radius-md);
    opacity: 1;
  }
  .mobile-drawer .sidebar-link .sidebar-label {
    opacity: 1;
    transform: none;
  }
  .mobile-drawer .sidebar-link .sidebar-icon {
    width: 22px;
    height: 22px;
  }
  .mobile-drawer .sidebar-section-label {
    opacity: 1;
    padding: 0.5rem 1rem 0.25rem;
    font-size: 0.65rem;
  }

  /* ── Page layout ───────────────────────────────────────────────────── */
  .page {
    padding: 1.25rem 1rem !important;
    max-width: 100%;
  }
  .page-header {
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
  }
  .page-header h1 {
    font-size: 1.5rem !important;
  }
  .page-header p {
    font-size: 0.85rem;
  }

  /* ── Grids collapse ────────────────────────────────────────────────── */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr !important;
    gap: 1rem !important;
  }

  /* ── Cards ─────────────────────────────────────────────────────────── */
  .card {
    padding: 1.125rem !important;
    border-radius: var(--radius-md);
  }
  .card-header {
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .card-header h3 {
    font-size: 0.88rem;
  }

  /* ── Tables ────────────────────────────────────────────────────────── */
  .table-container {
    margin: 0 -1.125rem;
    border-radius: 0;
    border-left: none;
    border-right: none;
    -webkit-overflow-scrolling: touch;
  }
  th, td {
    padding: 0.5rem 0.625rem;
    font-size: 0.72rem;
    white-space: nowrap;
  }

  /* ── Charts ────────────────────────────────────────────────────────── */
  .chart-container {
    height: 240px !important;
    padding: 0.375rem;
  }

  /* ── Metrics ───────────────────────────────────────────────────────── */
  .metric { padding: 0.875rem 0.75rem; }
  .metric-value { font-size: 1.375rem; }
  .metric-label { font-size: 0.6rem; }

  /* ── Tabs ───────────────────────────────────────────────────────────── */
  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    gap: 0;
    margin-bottom: 1.25rem;
    scrollbar-width: none;
  }
  .tabs::-webkit-scrollbar { display: none; }
  .tab {
    padding: 0.625rem 0.875rem;
    font-size: 0.7rem;
    flex-shrink: 0;
  }

  /* ── Buttons ───────────────────────────────────────────────────────── */
  .btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 0.8rem;
  }

  /* ── Forms ─────────────────────────────────────────────────────────── */
  .input, select, textarea {
    font-size: 16px; /* prevents iOS zoom on focus */
  }
  .form-group label {
    font-size: 0.7rem;
  }

  /* ── Flex Utils ────────────────────────────────────────────────────── */
  .flex-between {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  /* ── Empty state ───────────────────────────────────────────────────── */
  .empty-state {
    padding: 2.5rem 1.5rem;
  }

  /* ── Loading ───────────────────────────────────────────────────────── */
  .loading-overlay {
    padding: 3rem 1.5rem;
  }

  /* ── Badge ─────────────────────────────────────────────────────────── */
  .badge {
    font-size: 0.6rem;
    padding: 0.15rem 0.5rem;
  }

  /* ── Icon box ──────────────────────────────────────────────────────── */
  .icon-box {
    width: 40px;
    height: 40px;
  }
  .icon-box svg { width: 18px; height: 18px; }

  /* ═════════════════════════════════════════════════════════════════════
     PAGE-SPECIFIC MOBILE OVERRIDES
     ═════════════════════════════════════════════════════════════════════ */

  /* ── Landing Page ──────────────────────────────────────────────────── */
  .landing-header {
    padding: 0.875rem 1rem !important;
  }
  .landing-header .brand-text {
    font-size: 1.1rem;
  }
  .landing-hero {
    min-height: 80vh !important;
    padding: 1rem !important;
  }
  .landing-hero h1 {
    font-size: clamp(1.75rem, 7vw, 2.5rem) !important;
    line-height: 1.2 !important;
  }
  .landing-hero p {
    font-size: 0.9rem !important;
  }
  .landing-hero .flex-gap {
    flex-direction: column;
    width: 100%;
  }
  .landing-hero .flex-gap .btn {
    width: 100%;
  }
  .landing-section {
    padding: 3rem 1.25rem !important;
  }
  .landing-footer {
    flex-direction: column !important;
    gap: 0.5rem;
    text-align: center;
    padding: 1.5rem 1rem !important;
  }

  /* ── Login / Register ──────────────────────────────────────────────── */
  .auth-container {
    flex-direction: column !important;
  }
  .auth-card {
    padding: 2rem 1.25rem !important;
    min-height: 100vh;
  }
  .auth-image {
    display: none !important;
  }

  /* ── Dashboard ─────────────────────────────────────────────────────── */
  .dashboard-ticker-strip {
    gap: 0.375rem !important;
  }
  .dashboard-ticker-strip button {
    min-width: 120px !important;
    padding: 0.5rem 0.625rem !important;
  }

  /* ── Market Explorer ───────────────────────────────────────────────── */
  .market-search-bar {
    flex-direction: column !important;
    gap: 0.75rem !important;
  }
  .market-search-bar .input {
    width: 100% !important;
  }
  .market-search-bar select {
    width: 100% !important;
  }
  .market-tabs {
    overflow-x: auto !important;
    flex-wrap: nowrap !important;
  }
  .ticker-chips {
    flex-wrap: wrap !important;
    gap: 0.375rem !important;
  }
  .company-info-grid {
    grid-template-columns: 1fr 1fr !important;
    gap: 0.625rem !important;
  }

  /* ── Factor Analysis ───────────────────────────────────────────────── */
  .factor-input-bar {
    flex-direction: column !important;
    gap: 0.75rem !important;
  }
  .factor-input-bar .input {
    width: 100% !important;
  }

  /* ── Sentiment ─────────────────────────────────────────────────────── */
  .sentiment-gauge-row {
    grid-template-columns: 1fr !important;
  }

  /* ── Holdings ──────────────────────────────────────────────────────── */
  .holdings-actions {
    flex-direction: column !important;
    gap: 0.5rem !important;
  }
  .holdings-actions .btn {
    width: 100%;
  }

  /* ── Strategy Builder ──────────────────────────────────────────────── */
  .strategy-form-row {
    flex-direction: column !important;
    gap: 0.75rem !important;
  }

  /* ── Portfolio Analysis ────────────────────────────────────────────── */
  .portfolio-stats-grid {
    grid-template-columns: 1fr 1fr !important;
  }

  /* ── Recharts responsive ───────────────────────────────────────────── */
  .recharts-wrapper {
    font-size: 0.7rem;
  }
  .recharts-cartesian-axis-tick-value {
    font-size: 0.65rem;
  }

  /* ── Generic inline-style overrides using attribute selectors ───── */
  /* Override inline grid/flex styles that use fixed column widths */
  [style*="grid-template-columns: repeat"] {
    grid-template-columns: 1fr !important;
  }
  [style*="gridTemplateColumns"] {
    grid-template-columns: 1fr !important;
  }
  [style*="padding: 6rem 3rem"],
  [style*="padding:'6rem 3rem'"] {
    padding: 3rem 1.25rem !important;
  }

  /* Fix inline flex layouts that don't wrap */
  [style*="display: flex"][style*="gap:"] {
    flex-wrap: wrap;
  }
}

/* ── Scrollbar ───────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

::selection { background: rgba(0, 82, 65, 0.15); color: var(--text-primary); }