/* ============================================================
   EMINENCE.EXCHANGE — Landing Page Styles
   Design system: tokens → reset → base → layout →
   components → sections → responsive → animations
   ============================================================ */

/* ── 1. DESIGN TOKENS ─────────────────────────────────────── */
:root {
  /* Colors */
  --ink:          #0E1B2E;
  --ink-light:    #162236;
  --ink-mid:      #1C3050;
  --accent:       #2A6DD9;
  --accent-hover: #1A54B8;
  --accent-light: #EBF2FF;
  --gold:         #C9A84C;
  --surface:      #F4F6FA;
  --white:        #FFFFFF;
  --text:         #1A2333;
  --text-muted:   #5E6E85;
  --text-faint:   #8A97A8;
  --border:       #DDE3EC;
  --border-dark:  #B8C4D4;
  --shadow-sm:    0 1px 3px rgba(14,27,46,.08), 0 1px 2px rgba(14,27,46,.04);
  --shadow-md:    0 4px 16px rgba(14,27,46,.10), 0 2px 6px rgba(14,27,46,.06);
  --shadow-lg:    0 12px 40px rgba(14,27,46,.14), 0 4px 12px rgba(14,27,46,.08);
  --shadow-accent:0 4px 20px rgba(42,109,217,.30);

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-sans:  'Inter', system-ui, -apple-system, sans-serif;

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  20px;
  --space-6:  24px;
  --space-8:  32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  --space-32: 128px;

  /* Border radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 400ms;

  /* Layout */
  --container-max: 1200px;
  --header-h: 72px;
}

/* ── 2. RESET & BASE ──────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover { color: var(--accent-hover); }

ul, ol { list-style: none; }

button {
  font-family: var(--font-sans);
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: var(--font-sans);
}

/* ── 3. TYPOGRAPHY ────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.15;
  color: var(--ink);
  font-weight: 700;
}

h1 { font-size: clamp(2.25rem, 5vw, 3.5rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.625rem); }
h4 { font-size: 1.125rem; font-family: var(--font-sans); font-weight: 600; }

p { max-width: 65ch; }
p.wide { max-width: 75ch; }

.label {
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.label--light { color: rgba(255,255,255,0.65); }

/* ── 4. LAYOUT UTILITIES ──────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (min-width: 768px) {
  .container { padding-inline: var(--space-8); }
}
@media (min-width: 1024px) {
  .container { padding-inline: var(--space-12); }
}

.section {
  padding-block: var(--space-20);
}

.section--lg {
  padding-block: var(--space-24);
}

.section--dark {
  background: var(--ink);
  color: var(--white);
}
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 { color: var(--white); }

.section--surface {
  background: var(--surface);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-header .label {
  display: block;
  margin-bottom: var(--space-3);
}

.section-header p {
  margin-inline: auto;
  margin-top: var(--space-4);
  color: var(--text-muted);
  font-size: 1.0625rem;
}

.section--dark .section-header p { color: rgba(255,255,255,0.65); }

/* ── 5. BUTTONS ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.625rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--dur-base) var(--ease);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.01em;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--dur-fast) var(--ease);
}

.btn:hover::after { background: rgba(255,255,255,0.08); }

.btn:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

/* Primary */
.btn--primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-accent);
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(42,109,217,.38);
  color: var(--white);
}

.btn--primary:active { transform: translateY(0); }

/* Secondary / outline */
.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}

.btn--outline:hover {
  background: var(--accent);
  color: var(--white);
}

/* Ghost on dark */
.btn--ghost {
  background: rgba(255,255,255,0.12);
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.2);
  color: var(--white);
}

/* Text link */
.btn--text {
  padding: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
  border-bottom: 1px solid transparent;
}

.btn--text:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
}

/* ── 6. HEADER / NAV ──────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(14, 27, 46, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: all var(--dur-base) var(--ease);
}

#site-header.scrolled {
  height: 60px;
  background: rgba(14, 27, 46, 0.98);
  box-shadow: 0 4px 24px rgba(0,0,0,0.18);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  width: 100%;
}

/* Logo */
.site-logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-logo span {
  color: var(--accent);
}

.site-logo:hover { color: var(--white); }

.logo-dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: var(--radius-full);
  display: inline-block;
  margin-right: var(--space-1);
  box-shadow: 0 0 8px rgba(42,109,217,0.6);
}

/* Nav links */
.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-8);
}

@media (min-width: 1024px) {
  .nav-links { display: flex; }
}

.nav-links a {
  color: rgba(255,255,255,0.80);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: color var(--dur-fast) var(--ease);
  padding-block: var(--space-2);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--dur-base) var(--ease);
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after { transform: scaleX(1); }

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: background var(--dur-fast) var(--ease);
}

.hamburger:hover { background: rgba(255,255,255,0.1); }

.hamburger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255,255,255,0.9);
  border-radius: var(--radius-full);
  transition: all var(--dur-base) var(--ease);
  transform-origin: center;
}

.hamburger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .hamburger { display: none; }
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: var(--space-4) var(--space-6) var(--space-6);
  z-index: 999;
  transform: translateY(-8px);
  opacity: 0;
  transition: all var(--dur-base) var(--ease);
}

.mobile-nav.open {
  display: block;
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav a {
  display: block;
  padding: var(--space-3) 0;
  color: rgba(255,255,255,0.85);
  font-size: 1rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { color: var(--white); }

.mobile-nav .btn--primary {
  margin-top: var(--space-5);
  width: 100%;
}

/* ── 7. HERO ──────────────────────────────────────────────── */
#hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  background: var(--ink);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(42,109,217,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 50% at 10% 80%, rgba(42,109,217,0.07) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: center;
  padding-block: var(--space-16);
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    padding-block: var(--space-20);
  }
}

.hero-content {
  color: var(--white);
  max-width: 580px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-5);
  padding: var(--space-2) var(--space-4);
  background: rgba(42,109,217,0.12);
  border: 1px solid rgba(42,109,217,0.25);
  border-radius: var(--radius-full);
}

.hero-eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: var(--radius-full);
  box-shadow: 0 0 6px var(--accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

#hero h1 {
  color: var(--white);
  margin-bottom: var(--space-6);
}

#hero h1 em {
  font-style: normal;
  color: var(--accent);
  position: relative;
}

.hero-subhead {
  font-size: 1.125rem;
  color: rgba(255,255,255,0.72);
  margin-bottom: var(--space-10);
  line-height: 1.7;
  max-width: 52ch;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}

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

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.55);
  font-weight: 500;
}

.trust-badge svg { color: var(--gold); flex-shrink: 0; }

.trust-divider {
  width: 1px;
  height: 18px;
  background: rgba(255,255,255,0.15);
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-mockup-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    0 24px 80px rgba(0,0,0,0.4),
    0 8px 24px rgba(42,109,217,0.2);
  animation: float 6s ease-in-out infinite;
  max-width: 560px;
  width: 100%;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero-mockup-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* Floating accent badges */
.float-badge {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-lg);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  animation: float 6s ease-in-out infinite;
  white-space: nowrap;
  z-index: 2;
}

.float-badge--1 {
  top: 10%;
  right: -5%;
  animation-delay: -2s;
}

.float-badge--2 {
  bottom: 12%;
  left: -5%;
  animation-delay: -4s;
}

.float-badge .badge-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.float-badge--1 .badge-icon { background: #E8F5E9; }
.float-badge--2 .badge-icon { background: var(--accent-light); }

@media (max-width: 1023px) {
  .float-badge--1, .float-badge--2 { display: none; }
  .hero-visual { padding-inline: var(--space-4); }
}

/* ── 8. PROBLEM SECTION ───────────────────────────────────── */
#problem {
  background: var(--surface);
  padding-block: var(--space-20);
  position: relative;
  overflow: hidden;
}

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-16);
  align-items: center;
}

@media (min-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
  }
}

.problem-content .label { margin-bottom: var(--space-3); }
.problem-content h2 { margin-bottom: var(--space-5); }
.problem-content p { color: var(--text-muted); margin-bottom: var(--space-4); }

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

.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #5B99F0);
}

.stat-card .stat-num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
  margin-bottom: var(--space-1);
}

.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── 9. HOW IT WORKS ──────────────────────────────────────── */
#how-it-works {
  background: var(--white);
  padding-block: var(--space-20);
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  position: relative;
}

@media (min-width: 640px) {
  .steps-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
  }
  /* Connector line */
  .steps-grid::before {
    content: '';
    position: absolute;
    top: 36px;
    left: calc(12.5% + 20px);
    right: calc(12.5% + 20px);
    height: 1px;
    background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
    z-index: 0;
  }
}

.step-card {
  position: relative;
  text-align: center;
  padding: var(--space-6);
  z-index: 1;
}

.step-num {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--border-dark);
  letter-spacing: 0.05em;
}

.step-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  font-size: 1.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.step-card:hover .step-icon {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.step-icon::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(42,109,217,0.6), transparent);
}

.step-card h3 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 700;
}

.step-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-inline: auto;
}

/* ── 10. FOR SELLERS ──────────────────────────────────────── */
#for-sellers {
  background: var(--ink);
  padding-block: var(--space-24);
  position: relative;
  overflow: hidden;
}

#for-sellers::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 100% 50%, rgba(42,109,217,0.10) 0%, transparent 60%);
  pointer-events: none;
}

.seller-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .seller-cards { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .seller-cards { grid-template-columns: repeat(4, 1fr); }
}

.seller-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  position: relative;
  transition: all var(--dur-base) var(--ease);
  overflow: hidden;
}

.seller-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(42,109,217,0.08), transparent);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease);
}

.seller-card:hover {
  border-color: rgba(42,109,217,0.35);
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.seller-card:hover::before { opacity: 1; }

.seller-card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
}

.seller-card h3 {
  font-size: 1.0625rem;
  margin-bottom: var(--space-2);
  font-family: var(--font-sans);
  font-weight: 700;
  color: var(--white);
}

.seller-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.62);
  line-height: 1.65;
}

.seller-cta {
  text-align: center;
}

/* ── 11. FOR BUYERS ───────────────────────────────────────── */
#for-buyers {
  background: var(--surface);
  padding-block: var(--space-20);
}

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

@media (min-width: 1024px) {
  .buyer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
  }
}

.buyer-benefits {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.buyer-benefit {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.buyer-benefit-icon {
  width: 44px;
  height: 44px;
  background: var(--accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
  color: var(--accent);
}

.buyer-benefit-text h4 {
  margin-bottom: var(--space-1);
  font-weight: 700;
}

.buyer-benefit-text p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

.buyer-cta-block {
  margin-top: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

/* ── 12. TRUST & CREDIBILITY ──────────────────────────────── */
#trust {
  background: var(--white);
  padding-block: var(--space-20);
}

.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-16);
}

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

.trust-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  position: relative;
  transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease);
}

.trust-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.trust-card-icon {
  width: 48px;
  height: 48px;
  background: var(--accent-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}

.trust-card h3 {
  font-size: 1rem;
  font-family: var(--font-sans);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.trust-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Testimonials */
.testimonial-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .testimonial-row { grid-template-columns: 1fr 1fr 1fr; }
}

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

.testimonial-card::before {
  content: '"';
  font-family: var(--font-serif);
  font-size: 4rem;
  color: var(--accent);
  opacity: 0.25;
  line-height: 1;
  position: absolute;
  top: var(--space-4);
  left: var(--space-5);
}

.testimonial-text {
  font-size: 0.9375rem;
  color: var(--text);
  line-height: 1.7;
  margin-bottom: var(--space-4);
  padding-top: var(--space-6);
  font-style: italic;
}

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

.testimonial-avatar {
  width: 40px;
  height: 40px;
  background: var(--ink);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--white);
  flex-shrink: 0;
}

.testimonial-meta strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink);
}

.testimonial-meta span {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.placeholder-notice {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-faint);
  background: var(--surface);
  border: 1px dashed var(--border-dark);
  border-radius: var(--radius-full);
  padding: 2px var(--space-3);
  margin-top: var(--space-3);
}

/* Founding logos strip */
.logo-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  padding-top: var(--space-12);
  margin-top: var(--space-12);
  border-top: 1px solid var(--border);
}

.logo-placeholder {
  width: 100px;
  height: 32px;
  background: var(--border);
  border-radius: var(--radius-sm);
  opacity: 0.5;
}

/* ── 13. PRICING ──────────────────────────────────────────── */
#pricing {
  background: var(--surface);
  padding-block: var(--space-20);
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

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

.pricing-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: relative;
  transition: all var(--dur-base) var(--ease);
}

.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pricing-card--featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
}

.pricing-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 3px var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.pricing-card h3 {
  font-size: 1.25rem;
  font-family: var(--font-sans);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-family: var(--font-serif);
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
  margin-block: var(--space-4);
}

.pricing-price span {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 400;
}

.pricing-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-block: var(--space-6);
}

.pricing-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: 0.9rem;
  color: var(--text-muted);
}

.pricing-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── 14. FAQ ──────────────────────────────────────────────── */
#faq {
  background: var(--white);
  padding-block: var(--space-20);
}

.faq-list {
  max-width: 760px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--dur-base) var(--ease);
}

.faq-item.open {
  box-shadow: var(--shadow-md);
  border-color: var(--border-dark);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  background: var(--white);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background var(--dur-fast) var(--ease);
}

.faq-trigger:hover { background: var(--surface); }
.faq-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--dur-base) var(--ease);
}

.faq-item.open .faq-icon {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(45deg);
}

.faq-icon::before {
  content: '+';
  font-size: 1rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1;
  transition: color var(--dur-base) var(--ease);
}

.faq-item.open .faq-icon::before { color: var(--white); }

.faq-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-slow) var(--ease);
}

.faq-item.open .faq-body {
  grid-template-rows: 1fr;
}

.faq-body-inner {
  overflow: hidden;
}

.faq-body p {
  padding: 0 var(--space-6) var(--space-5);
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 100%;
}

/* ── 15. FINAL CTA BAND ───────────────────────────────────── */
#final-cta {
  background: var(--ink);
  padding-block: var(--space-24);
  position: relative;
  overflow: hidden;
}

#final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 30% 50%, rgba(42,109,217,0.14) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 80% 20%, rgba(42,109,217,0.08) 0%, transparent 50%);
  pointer-events: none;
}

.final-cta-inner {
  text-align: center;
  max-width: 680px;
  margin-inline: auto;
  position: relative;
}

#final-cta h2 {
  color: var(--white);
  font-size: clamp(1.625rem, 4vw, 2.75rem);
  margin-bottom: var(--space-4);
}

#final-cta h2 em {
  font-style: italic;
  color: var(--accent);
}

.final-cta-sub {
  color: rgba(255,255,255,0.65);
  font-size: 1.0625rem;
  margin-bottom: var(--space-10);
  margin-inline: auto;
  max-width: 52ch;
}

/* Inline signup form */
.cta-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 480px;
  margin-inline: auto;
}

@media (min-width: 640px) {
  .cta-form { flex-direction: row; }
}

.cta-form input[type="email"] {
  flex: 1;
  padding: 0.875rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1.5px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.06);
  color: var(--white);
  font-size: 0.9375rem;
  outline: none;
  transition: all var(--dur-fast) var(--ease);
  backdrop-filter: blur(8px);
}

.cta-form input[type="email"]::placeholder { color: rgba(255,255,255,0.40); }

.cta-form input[type="email"]:focus {
  border-color: var(--accent);
  background: rgba(255,255,255,0.10);
  box-shadow: 0 0 0 3px rgba(42,109,217,0.25);
}

/* ── 16. SIGNUP FORM (modal + footer) ────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ink);
}

.form-input {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--text);
  background: var(--white);
  transition: all var(--dur-fast) var(--ease);
  outline: none;
  width: 100%;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,109,217,0.15);
}

.form-input.error {
  border-color: #D32F2F;
  box-shadow: 0 0 0 3px rgba(211,47,47,0.12);
}

.field-error {
  font-size: 0.8125rem;
  color: #D32F2F;
  font-weight: 500;
  display: none;
}

.field-error.visible { display: block; }

/* Intent toggle */
.intent-toggle {
  display: flex;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.intent-toggle label {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}

.intent-toggle input[type="radio"] { position: absolute; opacity: 0; width: 0; height: 0; }

.intent-toggle input[type="radio"]:checked + label {
  background: var(--ink);
  color: var(--white);
}

.intent-toggle input[type="radio"]:focus-visible + label {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* Form message */
.form-message {
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  font-size: 0.9rem;
  font-weight: 500;
  display: none;
}

.form-message.success {
  display: block;
  background: #E8F5E9;
  color: #1B5E20;
  border: 1px solid #A5D6A7;
}

.form-message.error {
  display: block;
  background: #FFEBEE;
  color: #B71C1C;
  border: 1px solid #FFCDD2;
}

/* ── 17. MODAL ────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(14,27,46,0.72);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease);
}

.modal-backdrop.open {
  opacity: 1;
  pointer-events: all;
}

.modal-panel {
  background: var(--white);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--dur-slow) var(--ease-out), opacity var(--dur-slow) var(--ease);
  opacity: 0;
  box-shadow: var(--shadow-lg);
}

.modal-backdrop.open .modal-panel {
  transform: translateY(0) scale(1);
  opacity: 1;
}

.modal-header {
  padding: var(--space-6) var(--space-8) 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
}

.modal-header-content h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-1);
}

.modal-header-content p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 100%;
}

.modal-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  color: var(--text-muted);
  line-height: 1;
  flex-shrink: 0;
  transition: all var(--dur-fast) var(--ease);
}

.modal-close:hover {
  background: var(--ink);
  color: var(--white);
  border-color: var(--ink);
}

.modal-close:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.modal-body {
  padding: var(--space-6) var(--space-8) var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* ── 18. FOOTER ───────────────────────────────────────────── */
#site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.70);
  padding-block: var(--space-16) var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand .site-logo {
  font-size: 1.125rem;
  margin-bottom: var(--space-3);
}

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.50);
  margin-bottom: var(--space-5);
  max-width: 28ch;
}

/* Footer email */
.footer-email-form {
  display: flex;
  gap: var(--space-2);
}

.footer-email-form input[type="email"] {
  flex: 1;
  padding: 0.625rem 0.875rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: var(--white);
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease);
  min-width: 0;
}

.footer-email-form input::placeholder { color: rgba(255,255,255,0.35); }
.footer-email-form input:focus { border-color: var(--accent); }

.footer-email-form button {
  padding: 0.625rem 1rem;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
  transition: background var(--dur-fast) var(--ease);
}

.footer-email-form button:hover { background: var(--accent-hover); }
.footer-email-form button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Footer nav columns */
.footer-col h5 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-4);
  font-family: var(--font-sans);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-col a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.62);
  transition: color var(--dur-fast) var(--ease);
}

.footer-col a:hover { color: var(--white); }

/* Footer bottom */
.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-bottom-copy {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
}

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

.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: all var(--dur-fast) var(--ease);
}

.social-link:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
}

.social-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ── 19. SCROLL ANIMATIONS ────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ── 20. LOADING / SPINNER ────────────────────────────────── */
.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.35);
  border-top-color: var(--white);
  border-radius: var(--radius-full);
  animation: spin 0.7s linear infinite;
  display: none;
}

.btn.loading .btn-label { opacity: 0.5; }
.btn.loading .spinner { display: inline-block; }

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

/* ── 21. FOCUS & ACCESSIBILITY ────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Skip to content link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--accent);
  color: var(--white);
  padding: var(--space-3) var(--space-5);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--dur-fast) var(--ease);
}

.skip-link:focus { top: 0; }

/* ── 22. UTILITIES ────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

/* ── 23. PRINT ────────────────────────────────────────────── */
@media print {
  #site-header, .modal-backdrop, .hamburger { display: none !important; }
  body { color: #000; background: #fff; }
  a { color: #000; }
}