/* ============================================================
   CARDINAL AI — style.css
   Brand: Cardinal Red #C41E3A · Deep Navy #0A1628 · Bone #F5F0E8
   Dark-first. Precise. Built for serious people.
   ============================================================ */

/* ── 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);
  --text-hero: clamp(3rem,     0.5rem + 7vw,     8rem);

  /* 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;

  /* Transitions */
  --transition-fast:        120ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow:        320ms cubic-bezier(0.16, 1, 0.3, 1);

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

  /* Fonts */
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;
  --font-display: 'Barlow Condensed', 'Arial Narrow', sans-serif;
}

/* ── DARK MODE (DEFAULT) ─────────────────────────────────────── */
:root,
[data-theme="dark"] {
  /* Surfaces */
  --color-bg:             #080e1a;
  --color-surface:        #0d1626;
  --color-surface-2:      #111c2e;
  --color-surface-offset: #0a1628;
  --color-border:         #1a2a45;
  --color-divider:        #162035;

  /* Text */
  --color-text:         #F5F0E8;
  --color-text-muted:   #9aa3b5;
  --color-text-faint:   #4a5568;
  --color-text-inverse: #080e1a;

  /* Primary — Cardinal Red */
  --color-primary:           #C41E3A;
  --color-primary-hover:     #a0172f;
  --color-primary-active:    #801228;
  --color-primary-highlight: rgba(196, 30, 58, 0.12);

  /* Accent — Bone / warm white for contrast moments */
  --color-accent: #F5F0E8;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-red: 0 4px 24px rgba(196, 30, 58, 0.25);
}

/* ── LIGHT MODE ──────────────────────────────────────────────── */
[data-theme="light"] {
  --color-bg:             #faf9f7;
  --color-surface:        #ffffff;
  --color-surface-2:      #f5f3ef;
  --color-surface-offset: #ede9e2;
  --color-border:         #d8d2c8;
  --color-divider:        #e5e0d8;

  --color-text:         #0A1628;
  --color-text-muted:   #4a5272;
  --color-text-faint:   #9aa3b5;
  --color-text-inverse: #faf9f7;

  --color-primary:           #C41E3A;
  --color-primary-hover:     #a0172f;
  --color-primary-active:    #801228;
  --color-primary-highlight: rgba(196, 30, 58, 0.08);

  --color-accent: #0A1628;

  --shadow-sm: 0 1px 3px rgba(10,22,40,0.08);
  --shadow-md: 0 4px 16px rgba(10,22,40,0.1);
  --shadow-lg: 0 12px 40px rgba(10,22,40,0.14);
  --shadow-red: 0 4px 24px rgba(196, 30, 58, 0.18);
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-20);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

h1, h2, h3, h4, h5, h6 {
  line-height: 1.1;
  text-wrap: balance;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
}

p, li { text-wrap: pretty; max-width: 68ch; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

::selection {
  background: var(--color-primary-highlight);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── LAYOUT UTILITIES ────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-6), 5vw, var(--space-16));
}

.section {
  padding-block: clamp(var(--space-16), 10vw, var(--space-32));
}

/* ── HEADER ──────────────────────────────────────────────────── */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 112px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

.logo:hover { opacity: 0.85; }

.logo-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--color-text);
}

.logo-sub {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-primary);
  opacity: 0.9;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-interactive);
}

.nav-link:hover { color: var(--color-text); }
.nav-link:hover::after { width: 100%; }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

/* ── BUTTONS ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
  border: 1.5px solid var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: var(--shadow-red);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1.5px solid var(--color-border);
}

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

.btn-lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-8);
}

/* ── HERO ────────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* Subtle grid lines */
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--color-border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--color-border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.25;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 0%, transparent 100%);
}

/* Glow orbs */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(196, 30, 58, 0.18) 0%, transparent 70%);
  top: -100px;
  right: -100px;
}

.glow-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(10, 22, 40, 0.8) 0%, transparent 70%);
  bottom: 0;
  left: -50px;
}

[data-theme="light"] .glow-1 {
  background: radial-gradient(circle, rgba(196, 30, 58, 0.08) 0%, transparent 70%);
}

[data-theme="light"] .grid-lines {
  opacity: 0.4;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(var(--space-16), 12vw, var(--space-32));
  max-width: 800px;
}

/* Hero badge */
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  border: 1px solid rgba(196, 30, 58, 0.3);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-8);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

/* Hero heading */
.hero-heading {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.hero-heading .accent {
  color: var(--color-primary);
}

/* Hero subtext */
.hero-sub {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-10);
  max-width: 58ch;
}

/* Hero CTA */
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-16);
}

/* Hero stats */
.hero-stat-row {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  flex-wrap: wrap;
}

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

.stat-number {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
  line-height: 1;
}

.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  line-height: 1.3;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
  flex-shrink: 0;
}

/* ── SECTION SHARED ──────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-heading {
  font-size: var(--text-2xl);
  font-weight: 800;
  line-height: 1.05;
  color: var(--color-text);
  margin-bottom: var(--space-6);
}

.section-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin-bottom: var(--space-12);
}

/* ── PROBLEM SECTION ─────────────────────────────────────────── */
.section-problem {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-10);
}

.problem-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}

.problem-card:hover {
  border-color: rgba(196, 30, 58, 0.3);
  box-shadow: var(--shadow-md);
}

.problem-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border: 1px solid rgba(196, 30, 58, 0.2);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin-bottom: var(--space-5);
}

.problem-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}

.problem-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
}

.problem-card-highlight {
  background: linear-gradient(135deg, rgba(196,30,58,0.08) 0%, var(--color-surface-2) 60%);
  border-color: rgba(196,30,58,0.25);
}

[data-theme="light"] .problem-card-highlight {
  background: linear-gradient(135deg, rgba(196,30,58,0.05) 0%, var(--color-surface) 60%);
}

.cdk-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  border: 1px solid rgba(196, 30, 58, 0.4);
  background: var(--color-primary-highlight);
  padding: 2px var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

/* ── PLATFORM SECTION ────────────────────────────────────────── */
.section-platform {
  background: var(--color-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-5);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  transition: border-color var(--transition-interactive), transform var(--transition-interactive);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.feature-card:hover { transform: translateY(-2px); border-color: var(--color-primary); }
.feature-card:hover::before { opacity: 1; }

.feature-card-large {
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
}

.feature-card-accent {
  background: linear-gradient(145deg, rgba(196,30,58,0.1) 0%, var(--color-surface) 50%);
  border-color: rgba(196, 30, 58, 0.3);
}

.feature-number {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 3rem);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.feature-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.feature-card-large .feature-title {
  font-size: var(--text-2xl);
}

.feature-desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: var(--space-6);
}

.feature-tag {
  display: inline-flex;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: var(--color-surface-offset, var(--color-bg));
  border: 1px solid var(--color-border);
  padding: 3px var(--space-3);
  border-radius: var(--radius-sm);
  margin-top: auto;
}

/* Demo strip */
.demo-strip {
  margin-top: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  overflow: hidden;
  position: relative;
}

.demo-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, rgba(196,30,58,0.04) 100%);
  pointer-events: none;
}

.demo-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-style: italic;
  white-space: nowrap;
}

.demo-example {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.demo-vin {
  font-family: 'Courier New', monospace;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  background: var(--color-surface-2, var(--color-bg));
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  letter-spacing: 0.1em;
}

.demo-arrow {
  font-size: var(--text-lg);
  color: var(--color-primary);
  font-weight: 700;
}

.result-wholesale {
  font-size: var(--text-sm);
  font-weight: 700;
  color: #ffffff;
  background: var(--color-primary);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

/* ── WHY CARDINAL ────────────────────────────────────────────── */
.section-why {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 8vw, var(--space-24));
  align-items: center;
}

.why-content .section-heading {
  margin-bottom: var(--space-5);
}

.why-content > p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-5);
}

.why-points {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.why-point {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

.why-check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-highlight);
  border: 1px solid rgba(196, 30, 58, 0.3);
  border-radius: var(--radius-sm);
  font-size: 11px;
  color: var(--color-primary);
  font-weight: 700;
  margin-top: 1px;
}

/* Why visual cards */
.why-visual {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.quote-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  position: relative;
  overflow: hidden;
}

.quote-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--color-primary);
  border-radius: 0 0 0 var(--radius-xl);
}

.quote-mark {
  font-family: Georgia, serif;
  font-size: 5rem;
  line-height: 0.8;
  color: var(--color-primary);
  opacity: 0.3;
  margin-bottom: var(--space-4);
}

.quote-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-6);
  max-width: 100%;
}

.quote-source {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.quote-logo {
  display: flex;
  align-items: center;
}

/* Security card */
.security-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.security-icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

.security-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.security-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ── CONTACT / CTA SECTION ───────────────────────────────────── */
.section-contact {
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

.section-contact::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(196, 30, 58, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.contact-inner {
  max-width: 680px;
  text-align: center;
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

.contact-inner .section-label,
.contact-inner .section-heading,
.contact-inner .section-sub {
  text-align: center;
  margin-inline: auto;
}

.contact-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-top: var(--space-10);
}

.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-8);
  display: flex;
  align-items: center;
  gap: var(--space-5);
  transition:
    border-color var(--transition-interactive),
    transform var(--transition-interactive),
    box-shadow var(--transition-interactive);
  text-decoration: none;
}

.contact-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-card-cta {
  background: var(--color-primary);
  border-color: var(--color-primary);
  cursor: pointer;
}

.contact-card-cta .contact-title,
.contact-card-cta .contact-detail,
.contact-card-cta .contact-icon {
  color: #ffffff !important;
}

.contact-card-cta:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.contact-icon {
  flex-shrink: 0;
  color: var(--color-primary);
  display: flex;
}

.contact-card-cta .contact-icon { color: #ffffff; }

.contact-text { text-align: left; }

.contact-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
  margin-bottom: 2px;
}

.contact-detail {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

/* ── FOOTER ──────────────────────────────────────────────────── */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.footer-copy {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}

.footer-contact a {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
  transition: color var(--transition-fast);
}

.footer-contact a:hover { color: var(--color-primary); }

/* ── SCROLL FADE ANIMATION ───────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Stagger delay for grid items */
.problem-card:nth-child(2) { transition-delay: 80ms; }
.problem-card:nth-child(3) { transition-delay: 160ms; }
.problem-card:nth-child(4) { transition-delay: 240ms; }
.feature-card:nth-child(2) { transition-delay: 60ms; }
.feature-card:nth-child(3) { transition-delay: 120ms; }
.feature-card:nth-child(4) { transition-delay: 180ms; }
.why-point:nth-child(2) { transition-delay: 60ms; }
.why-point:nth-child(3) { transition-delay: 120ms; }
.why-point:nth-child(4) { transition-delay: 180ms; }
.contact-card:nth-child(2) { transition-delay: 80ms; }

/* ── RESPONSIVE ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav { display: none; }

  .header-actions .btn-primary {
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-4);
  }

  .hero-heading { font-size: var(--text-2xl); }
  .hero-sub { font-size: var(--text-base); }

  .hero-stat-row {
    gap: var(--space-5);
  }

  .stat-divider { display: none; }

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

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

  .feature-card-large {
    grid-row: auto;
  }

  .why-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .contact-options {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  .hero-stat-row { flex-direction: column; align-items: flex-start; }
}

/* ── SURFACE-2 FALLBACK (for browsers that need it inline) ─── */
.feature-card { --color-surface-offset: #0f1e35; }
[data-theme="light"] .feature-card { --color-surface-offset: #ede9e2; }