/* ============================================================
   IMX Quant — Design Tokens & Component Styles
   Dark-first finance aesthetic: navy/charcoal + emerald + amber
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Type Scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transition */
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Content Widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;

  /* Fonts */
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
  --font-display: 'Inter', 'Helvetica Neue', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

/* --- Dark Theme (Primary) --- */
[data-theme="dark"] {
  --color-bg:              #0a1628;
  --color-surface:         #0f1d32;
  --color-surface-2:       #142640;
  --color-surface-offset:  #0d1a2e;
  --color-surface-dynamic: #1a2d4a;
  --color-divider:         #1e3350;
  --color-border:          #243b5a;

  --color-text:            #e8ecf2;
  --color-text-muted:      #8899ad;
  --color-text-faint:      #4d6380;
  --color-text-inverse:    #0a1628;

  /* Emerald accent */
  --color-primary:         #10b981;
  --color-primary-hover:   #059669;
  --color-primary-active:  #047857;
  --color-primary-glow:    rgba(16, 185, 129, 0.15);
  --color-primary-highlight: #10b98130;

  /* Amber highlights */
  --color-amber:           #f59e0b;
  --color-amber-hover:     #d97706;
  --color-amber-glow:      rgba(245, 158, 11, 0.15);

  /* Semantic */
  --color-success:         #10b981;
  --color-warning:         #f59e0b;
  --color-error:           #ef4444;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(16,185,129,0.08);
}

/* --- Light Theme --- */
[data-theme="light"] {
  --color-bg:              #f4f6f9;
  --color-surface:         #ffffff;
  --color-surface-2:       #f8f9fb;
  --color-surface-offset:  #edf0f5;
  --color-surface-dynamic: #e4e8ee;
  --color-divider:         #d1d8e0;
  --color-border:          #c0c9d4;

  --color-text:            #111827;
  --color-text-muted:      #6b7280;
  --color-text-faint:      #9ca3af;
  --color-text-inverse:    #ffffff;

  --color-primary:         #059669;
  --color-primary-hover:   #047857;
  --color-primary-active:  #065f46;
  --color-primary-glow:    rgba(5, 150, 105, 0.1);
  --color-primary-highlight: #05966920;

  --color-amber:           #d97706;
  --color-amber-hover:     #b45309;
  --color-amber-glow:      rgba(217, 119, 6, 0.1);

  --color-success:         #059669;
  --color-warning:         #d97706;
  --color-error:           #dc2626;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 40px rgba(5,150,105,0.05);
}

/* --- Global Layout --- */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding-inline: var(--space-6);
}

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-divider);
  transition: background 300ms;
}

.nav-inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
}

.logo-text {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-quant {
  color: var(--color-primary);
  font-weight: 500;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: none;
  letter-spacing: 0.01em;
}

.nav-link:hover {
  color: var(--color-text);
}

.nav-cta {
  background: var(--color-primary);
  color: var(--color-text-inverse) !important;
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-weight: 600;
}

.nav-cta:hover {
  background: var(--color-primary-hover);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 300ms, opacity 300ms;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: var(--space-32) var(--space-6) var(--space-16);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-divider) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-divider) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 40%, black, transparent);
}

.hero-glow {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(ellipse, var(--color-primary-glow), transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--color-primary-highlight); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-6);
}

.hero-stat {
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-weight: 700;
}

.hero-stat-secondary {
  font-family: var(--font-mono);
  color: var(--color-amber);
  font-weight: 700;
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  margin-bottom: var(--space-12);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-text-muted);
  background: var(--color-surface);
}

.btn-full {
  width: 100%;
}

.hero-metrics {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-divider);
}

.hero-metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.hero-metric-value {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  font-variant-numeric: tabular-nums lining-nums;
}

.hero-metric-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.hero-metric-divider {
  width: 1px;
  height: 40px;
  background: var(--color-divider);
}

.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-faint);
}

.scroll-dot {
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { cy: 10; }
  50% { cy: 22; }
}

/* --- Section Headers --- */
.section-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.section-desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 600px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: var(--space-12);
}

/* --- Strategy Section --- */
.strategy-pipeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
  flex-wrap: wrap;
}

.pipeline-step {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  text-align: center;
  padding: var(--space-6) var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.pipeline-step h3 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin: var(--space-3) 0 var(--space-2);
}

.pipeline-step p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.pipeline-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-glow);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin: 0 auto;
}

.pipeline-arrow {
  display: flex;
  align-items: center;
  color: var(--color-text-faint);
  padding-top: var(--space-10);
}

.strategy-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

.detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.detail-card h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

/* Tier Grid */
.tier-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.tier {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.tier.golden {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), transparent);
  border-color: rgba(245, 158, 11, 0.25);
}

.tier.secondary {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), transparent);
  border-color: rgba(16, 185, 129, 0.25);
}

.tier-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-2);
  display: block;
}

.golden .tier-label { color: var(--color-amber); }
.secondary .tier-label { color: var(--color-primary); }

.tier-specs {
  display: flex;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.tier-specs strong {
  color: var(--color-text);
}

/* Trade Timeline */
.trade-timeline {
  display: flex;
  align-items: center;
  gap: 0;
  justify-content: space-between;
}

.timeline-day {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.day-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
}

.timeline-day.active .day-label {
  background: var(--color-primary-glow);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.timeline-day.exit .day-label {
  background: var(--color-amber-glow);
  border-color: var(--color-amber);
  color: var(--color-amber);
}

.day-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.timeline-connector {
  flex: 1;
  height: 1px;
  background: var(--color-divider);
  margin-bottom: var(--space-5);
}

/* Scale-In */
.scale-in {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.scale-tranche {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.tranche-time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  width: 60px;
  flex-shrink: 0;
}

.tranche-bar {
  height: 28px;
  width: var(--w);
  background: linear-gradient(90deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 60%, transparent));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: #fff;
  min-width: 60px;
}

/* --- Performance Section --- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-10);
}

.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.kpi-label {
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.kpi-value {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  font-variant-numeric: tabular-nums lining-nums;
  color: var(--color-text);
}

.kpi-value.accent {
  color: var(--color-primary);
}

.kpi-sub {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

/* Charts */
.charts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.chart-container {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.chart-header h3 {
  font-size: var(--text-base);
  font-weight: 600;
}

.chart-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: var(--color-primary-glow);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-weight: 500;
}

/* Monte Carlo */
.monte-carlo {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-8);
}

.monte-carlo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.mc-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  display: block;
}

.mc-range {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.mc-low, .mc-high {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.mc-low { color: var(--color-text-muted); }
.mc-high { color: var(--color-primary); }

.mc-bar {
  flex: 1;
  height: 8px;
  background: var(--color-surface-dynamic);
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
}

.mc-bar.warning .mc-fill {
  background: linear-gradient(90deg, var(--color-amber), color-mix(in srgb, var(--color-amber) 60%, transparent));
}

.mc-bar.warning ~ .mc-high {
  color: var(--color-amber);
}

.mc-fill {
  position: absolute;
  left: var(--low, 0%);
  right: calc(100% - var(--high, 100%));
  top: 0;
  bottom: 0;
  background: linear-gradient(90deg, var(--color-primary), color-mix(in srgb, var(--color-primary) 60%, transparent));
  border-radius: var(--radius-full);
}

/* Comparison Table */
.comparison-table-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

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

.comparison-table {
  min-width: 600px;
}

.comparison-table th {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}

.comparison-table td {
  font-size: var(--text-sm);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid color-mix(in srgb, var(--color-divider) 50%, transparent);
}

.comparison-table .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums lining-nums;
}

.comparison-table .accent {
  color: var(--color-primary);
  font-weight: 600;
}

.table-note {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}

.highlight-row {
  background: var(--color-primary-glow);
}

.highlight-row td {
  border-bottom: none;
}

/* --- Risk Section --- */
.risk-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.risk-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.risk-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-glow);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.risk-icon.warning {
  background: var(--color-amber-glow);
  color: var(--color-amber);
}

.risk-card h3 {
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.risk-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.risk-spec {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.risk-spec span {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-1) var(--space-3);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

/* Drawdown Chart */
.dd-chart {
  margin-top: var(--space-6);
}

/* --- Technology Section --- */
.technology {
  background: var(--color-surface-offset);
}

.arch-diagram {
  margin-bottom: var(--space-10);
  overflow-x: auto;
  padding: var(--space-4);
}

.arch-layer {
  display: flex;
  align-items: stretch;
  gap: var(--space-3);
  justify-content: center;
  min-width: 800px;
}

.arch-node {
  flex: 1;
  max-width: 220px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-4) var(--space-5);
  position: relative;
}

.arch-node::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.arch-node.data::before { background: var(--color-amber); }
.arch-node.signal::before { background: var(--color-primary); }
.arch-node.risk-node::before { background: var(--color-error); }
.arch-node.execution::before { background: #6366f1; }

.arch-node-header {
  font-size: var(--text-sm);
  font-weight: 600;
  margin-bottom: var(--space-3);
}

.arch-node-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.arch-node-items span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-1) 0;
  border-bottom: 1px solid color-mix(in srgb, var(--color-divider) 50%, transparent);
}

.arch-node-items span:last-child {
  border-bottom: none;
}

.arch-connector {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.tech-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.tech-feature {
  text-align: center;
}

.tech-num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums lining-nums;
}

.tech-feature p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 100%;
}

/* --- Contact Section --- */
.contact {
  background: var(--color-bg);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: start;
}

.contact-info .section-title {
  margin-top: var(--space-3);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.contact-item svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-form-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
}

.form-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group.full {
  grid-column: 1 / -1;
}

.form-group label {
  font-size: var(--text-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--color-text-faint);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238899ad' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-4);
  padding: var(--space-10) 0;
}

.form-success h3 {
  font-size: var(--text-lg);
  font-weight: 600;
}

.form-success p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer-brand-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.footer-legal p {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  max-width: 400px;
  text-align: center;
}

.footer-links a {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-text-muted);
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .strategy-details {
    grid-template-columns: 1fr;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .risk-grid {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .tech-features {
    grid-template-columns: repeat(2, 1fr);
  }

  .monte-carlo-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-divider);
    flex-direction: column;
    padding: var(--space-4) var(--space-6);
    gap: var(--space-3);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-metrics {
    flex-wrap: wrap;
    gap: var(--space-4);
  }

  .hero-metric-divider {
    display: none;
  }

  .hero-metric {
    flex: 1 1 40%;
    text-align: center;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  .strategy-pipeline {
    flex-direction: column;
    align-items: center;
  }

  .pipeline-arrow {
    transform: rotate(90deg);
    padding-top: 0;
  }

  .pipeline-step {
    max-width: 100%;
    width: 100%;
  }

  .form-fields {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-4);
  }

  .footer-legal p {
    max-width: 100%;
  }

  .arch-layer {
    flex-direction: column;
    min-width: 0;
    align-items: center;
  }

  .arch-connector {
    transform: rotate(90deg);
  }

  .arch-node {
    max-width: 100%;
    width: 100%;
  }

  .tech-features {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
  }

  .kpi-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
  }

  .kpi-card {
    padding: var(--space-4);
  }

  .kpi-value {
    font-size: var(--text-lg);
  }
}

@media (max-width: 480px) {
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .tech-features {
    grid-template-columns: 1fr;
  }

  .hero-headline {
    font-size: clamp(2rem, 0.8rem + 4vw, 3rem);
  }
}