/* ============================================================
   TrialsGuard — Global Styles
   Inspired by Illumina.com: clean, scientific, professional
   ============================================================ */

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

:root {
  --navy-900: #0d0520;
  --navy-800: #190940;
  --navy-700: #230e5c;
  --navy-600: #2e1478;
  --blue-500: #6d28d9;
  --blue-400: #7c3aed;
  --blue-300: #a78bfa;
  --blue-200: #ddd6fe;
  --teal-500: #0891b2;
  --teal-400: #06b6d4;
  --teal-300: #67e8f9;
  --green-500: #38a169;
  --green-400: #48bb78;
  --red-500: #e53e3e;
  --orange-500: #dd6b20;
  --yellow-400: #d69e2e;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.12), 0 2px 6px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.18), 0 4px 16px rgba(0,0,0,0.1);
  --shadow-blue: 0 0 0 3px rgba(167,139,250,0.35);
}

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

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--gray-800);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; color: var(--navy-900); letter-spacing: -0.02em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.2rem; }
p { color: var(--gray-600); }
a { color: var(--blue-500); text-decoration: none; }
a:hover { color: var(--blue-400); }
img, svg { display: block; }

/* ── Container ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all 0.18s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn--sm   { font-size: 0.85rem; padding: 8px 18px; }
.btn--lg   { font-size: 1rem; padding: 14px 28px; border-radius: var(--radius-md); }
.btn--full { width: 100%; justify-content: center; }

.btn--primary {
  background: linear-gradient(135deg, var(--blue-500) 0%, var(--teal-500) 100%);
  color: var(--white);
  box-shadow: 0 2px 12px rgba(109, 40, 217, 0.35);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(109, 40, 217, 0.45);
  color: var(--white);
}

.btn--ghost {
  background: transparent;
  color: var(--gray-700);
  border: 1.5px solid var(--gray-200);
}
.btn--ghost:hover {
  border-color: var(--blue-300);
  color: var(--blue-500);
  background: var(--gray-50);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.4);
}
.btn--outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.7);
  color: var(--white);
}

/* ── Eyebrow ──────────────────────────────────────────────── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-400);
  margin-bottom: 14px;
}
.eyebrow--dark { color: var(--teal-500); }
.eyebrow__dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--teal-400);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* ── Section Shared ───────────────────────────────────────── */
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}
.section-title { margin-bottom: 16px; }
.section-title--light { color: var(--white); }
.section-sub { font-size: 1.05rem; color: var(--gray-600); }
.section-sub--light { color: rgba(255,255,255,0.8); }

.gradient-text {
  background: linear-gradient(135deg, var(--blue-300) 0%, var(--teal-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow 0.2s;
}
.nav.scrolled { box-shadow: var(--shadow-md); }

.nav__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark { flex-shrink: 0; }
.logo-text {
  font-size: 1.18rem;
  font-weight: 400;
  color: var(--gray-800);
  letter-spacing: -0.01em;
}
.logo-text strong { font-weight: 800; color: var(--navy-800); }
.logo-text--light { color: rgba(255,255,255,0.85); }
.logo-text--light strong { color: var(--white); }

.nav__links {
  display: flex;
  list-style: none;
  gap: 28px;
  margin: 0;
  margin-left: auto;
}
.nav__links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.15s;
}
.nav__links a:hover { color: var(--blue-500); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}
.nav__burger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all 0.2s;
}

.nav__mobile {
  display: none;
  flex-direction: column;
  padding: 12px 24px 20px;
  border-top: 1px solid var(--gray-100);
  gap: 12px;
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-700);
  padding: 6px 0;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, var(--navy-900) 0%, var(--navy-700) 55%, #3b0d8c 100%);
  overflow: hidden;
  padding-top: 68px;
}

.hero__bg { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.hero__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(167,139,250,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167,139,250,0.07) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.hero__orb--1 {
  width: 600px; height: 600px;
  top: -200px; right: -100px;
  background: rgba(109, 40, 217, 0.35);
}
.hero__orb--2 {
  width: 400px; height: 400px;
  bottom: -100px; left: 10%;
  background: rgba(6, 182, 212, 0.18);
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 80px 24px;
}

.hero__copy { color: var(--white); }

.hero__h1 {
  color: var(--white);
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  margin-bottom: 22px;
  font-weight: 800;
}

.hero__sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero__cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.stat { display: flex; flex-direction: column; }
.stat__num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.03em;
}
.stat__label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  max-width: 120px;
  line-height: 1.4;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.15);
}

/* Dashboard Mockup */
.hero__visual { position: relative; }

.visual-glow {
  position: absolute;
  inset: -40px;
  background: radial-gradient(ellipse at center, rgba(167,139,250,0.18) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.dashboard-card {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 0 1px rgba(167,139,250,0.15);
}

.dashboard-card__header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.dashboard-card__dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.dashboard-card__dot--red    { background: #ff5f57; }
.dashboard-card__dot--yellow { background: #ffbd2e; }
.dashboard-card__dot--green  { background: #28ca41; }
.dashboard-card__title {
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.5);
  margin-left: 6px;
  letter-spacing: 0.02em;
}

.dashboard-card__body { padding: 20px; }

.score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.score-row--mt { margin-top: 20px; }
.score-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  font-family: 'Courier New', monospace;
  letter-spacing: 0.04em;
}
.score-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}
.score-badge--high { background: rgba(229,62,62,0.2); color: #fc8181; border: 1px solid rgba(229,62,62,0.3); }
.score-badge--low  { background: rgba(56,161,105,0.2); color: #68d391; border: 1px solid rgba(56,161,105,0.3); }

.score-bar-wrap {
  height: 5px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
}
.score-bar {
  height: 100%;
  border-radius: 3px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.score-bar--78 {
  width: 0;
  background: linear-gradient(90deg, #e53e3e, #dd6b20);
}
.score-bar--24 {
  width: 0;
  background: linear-gradient(90deg, #38a169, #7c3aed);
}
.score-bar--78.animate { width: 78%; }
.score-bar--24.animate { width: 24%; }

.drivers { display: flex; flex-direction: column; gap: 5px; }
.driver {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.4;
}

.dashboard-card__footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.chip {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 20px;
  background: rgba(255,255,255,0.07);
  color: rgba(255,255,255,0.55);
  border: 1px solid rgba(255,255,255,0.1);
}
.chip--blue {
  background: rgba(167,139,250,0.15);
  color: var(--blue-300);
  border-color: rgba(167,139,250,0.25);
}

/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
  padding: 22px 0;
}
.trust-bar .container {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.trust-bar__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  white-space: nowrap;
}
.trust-bar__logos {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.trust-pill {
  font-size: 0.82rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 20px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   PROBLEM
   ============================================================ */
.problem {
  padding: 100px 0;
  background: var(--white);
}
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.problem-card {
  padding: 36px 28px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: box-shadow 0.2s, transform 0.2s;
}
.problem-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.problem-card__icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-50);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}
.problem-card h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--navy-800); }
.problem-card p { font-size: 0.92rem; line-height: 1.65; }

/* ============================================================
   SOLUTION / FEATURES
   ============================================================ */
.solution {
  padding: 100px 0;
  background: var(--gray-50);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  padding: 28px 24px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: all 0.2s;
}
.feature-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
  transform: translateY(-2px);
}
.feature-card--accent {
  background: linear-gradient(145deg, var(--navy-800) 0%, var(--navy-700) 100%);
  border-color: rgba(167,139,250,0.25);
  color: var(--white);
}
.feature-card--accent h3 { color: var(--white); }
.feature-card--accent p  { color: rgba(255,255,255,0.7); }
.feature-card--accent .feature-card__tag { background: rgba(99,179,237,0.15); color: var(--blue-300); border-color: rgba(99,179,237,0.25); }
.feature-card__icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.feature-card--accent .feature-card__icon { background: rgba(255,255,255,0.07); }
.feature-card h3 { font-size: 1.05rem; margin-bottom: 8px; }
.feature-card p { font-size: 0.88rem; line-height: 1.6; margin-bottom: 16px; }
.feature-card__tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  color: var(--gray-600);
  letter-spacing: 0.03em;
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
.how-it-works {
  padding: 100px 0;
  background: var(--white);
}
.steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 680px;
  margin: 0 auto;
}
.step {
  display: grid;
  grid-template-columns: 56px 40px 1fr;
  gap: 0 20px;
  align-items: start;
}
.step__number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--blue-200);
  letter-spacing: -0.04em;
  padding-top: 4px;
  text-align: right;
}
.step__connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 8px;
}
.step__connector::before {
  content: '';
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--blue-500);
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(109,40,217,0.18);
}
.step__connector::after {
  content: '';
  width: 2px;
  height: 100%;
  min-height: 60px;
  background: linear-gradient(to bottom, var(--blue-300), var(--blue-200));
  flex: 1;
  margin-top: 6px;
  opacity: 0.4;
}
.step__connector--last::after { display: none; }
.step__content { padding: 0 0 48px; }
.step__content h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--navy-800); }
.step__content p { font-size: 0.92rem; line-height: 1.65; }

/* ============================================================
   USE CASES
   ============================================================ */
.use-cases {
  padding: 100px 0;
  background: var(--navy-900);
}
.use-cases .section-title,
.use-cases .eyebrow { color: var(--white); }
.use-cases .eyebrow { color: var(--teal-400); }
.use-cases .section-sub { color: rgba(255,255,255,0.6); }
.uc-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.uc-card {
  padding: 36px 32px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  transition: all 0.2s;
}
.uc-card:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(167,139,250,0.3);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}
.uc-card__label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--blue-300);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.uc-card p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

/* ============================================================
   DEMO CTA
   ============================================================ */
.demo-cta {
  position: relative;
  padding: 100px 0;
  overflow: hidden;
}
.demo-cta__bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--navy-700) 0%, #4c1d95 50%, var(--teal-500) 100%);
  z-index: 0;
}
.demo-cta__bg::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255,255,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(99,179,237,0.08) 0%, transparent 50%);
}
.demo-cta__inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.demo-cta__copy .section-title { color: var(--white); }
.demo-cta__copy .eyebrow { color: var(--teal-300); }

/* Demo Form */
.demo-form {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
.demo-form input,
.demo-form select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font);
  font-size: 0.92rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  color: var(--white);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.demo-form input::placeholder { color: rgba(255,255,255,0.38); }
.demo-form select { color: rgba(255,255,255,0.7); appearance: none; cursor: pointer; }
.demo-form select option { background: var(--navy-800); color: var(--white); }
.demo-form input:focus,
.demo-form select:focus {
  border-color: var(--blue-300);
  box-shadow: 0 0 0 3px rgba(167,139,250,0.22);
}
.demo-form .btn--primary { margin-top: 4px; }
.form-note {
  min-height: 20px;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--green-400);
  text-align: center;
}
.form-note.error { color: #fc8181; }
.form-privacy {
  margin-top: 12px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  text-align: center;
}
.form-privacy a { color: rgba(255,255,255,0.5); text-decoration: underline; }

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  padding: 100px 0;
  background: var(--gray-50);
}
.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about__copy p {
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 16px;
}
.about__metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.metric {
  padding: 28px 24px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: all 0.2s;
}
.metric:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--blue-200);
}
.metric__num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy-800);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}
.metric__label {
  display: block;
  font-size: 0.78rem;
  color: var(--gray-400);
  font-weight: 500;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy-900);
  color: rgba(255,255,255,0.6);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
  padding: 64px 24px 40px;
}
.footer__brand .nav__logo { margin-bottom: 12px; }
.footer__tagline { font-size: 0.88rem; color: rgba(255,255,255,0.4); max-width: 280px; line-height: 1.6; }

.footer__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.footer__col { display: flex; flex-direction: column; gap: 10px; }
.footer__col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}
.footer__col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  transition: color 0.15s;
}
.footer__col a:hover { color: var(--blue-300); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
}
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.footer__bottom p { font-size: 0.82rem; color: rgba(255,255,255,0.3); }
.footer__legal {
  display: flex;
  gap: 20px;
}
.footer__legal a {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}
.footer__legal a:hover { color: rgba(255,255,255,0.6); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .hero__inner { grid-template-columns: 1fr; gap: 48px; padding: 60px 24px; }
  .hero__visual { order: -1; max-width: 480px; margin: 0 auto; width: 100%; }
  .hero__h1 { font-size: clamp(2rem, 6vw, 3rem); }

  .problem-grid    { grid-template-columns: 1fr; gap: 16px; }
  .feature-grid    { grid-template-columns: 1fr 1fr; }
  .uc-grid         { grid-template-columns: 1fr; }
  .demo-cta__inner { grid-template-columns: 1fr; gap: 40px; }
  .about__inner    { grid-template-columns: 1fr; gap: 40px; }

  .footer__inner   { grid-template-columns: 1fr; gap: 40px; }
  .footer__nav     { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 680px) {
  .nav__links, .nav__actions { display: none; }
  .nav__burger { display: flex; }

  .feature-grid { grid-template-columns: 1fr; }
  .about__metrics { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer__nav { grid-template-columns: 1fr 1fr; }

  .hero__stats { gap: 16px; }
  .stat__divider { display: none; }

  .hero__cta-group { flex-direction: column; }
  .hero__cta-group .btn { width: 100%; justify-content: center; }

  .demo-form { padding: 24px; }
  .steps { max-width: 100%; }
  .step { grid-template-columns: 44px 28px 1fr; gap: 0 12px; }
}

@media (max-width: 420px) {
  .footer__nav { grid-template-columns: 1fr; }
  .about__metrics { grid-template-columns: 1fr; }
  .footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  .hero__copy > * {
    opacity: 0;
    transform: translateY(24px);
    animation: fadeUp 0.6s ease forwards;
  }
  .hero__copy .eyebrow        { animation-delay: 0.1s; }
  .hero__copy .hero__h1       { animation-delay: 0.2s; }
  .hero__copy .hero__sub      { animation-delay: 0.32s; }
  .hero__copy .hero__cta-group { animation-delay: 0.44s; }
  .hero__copy .hero__stats    { animation-delay: 0.56s; }
  .hero__visual               {
    opacity: 0;
    transform: translateX(32px);
    animation: fadeLeft 0.7s ease 0.3s forwards;
  }
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeLeft {
  to { opacity: 1; transform: translateX(0); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}