/* =========================================================
   Oculometrix — Landing Page Styles
   Professional law-enforcement theme: navy + slate + white
   ========================================================= */

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

:root {
  --navy-900: #0a1628;
  --navy-800: #0f2847;
  --navy-700: #14365e;
  --navy-600: #1a4a7a;
  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --white: #ffffff;
  --cyan-400: #00d4ff;
  --cyan-500: #00b8d9;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --gold-500: #f59e0b;
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.2);
  --transition: 0.2s ease;
}

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

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--slate-800);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--slate-200);
  height: var(--header-height);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--navy-900);
}

.logo-icon {
  flex-shrink: 0;
  border-radius: 20%;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  color: var(--slate-600);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--navy-900);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 15px;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan-500);
  color: var(--navy-900);
}

.btn-primary:hover {
  background: var(--cyan-400);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 212, 255, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.3);
}

.btn-outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.05);
}

.btn-outline-dark {
  background: transparent;
  color: var(--navy-900);
  border: 1.5px solid var(--slate-300);
}

.btn-outline-dark:hover {
  border-color: var(--navy-900);
  background: var(--slate-100);
}

.btn-nav {
  background: var(--cyan-500);
  color: var(--navy-900);
  padding: 8px 20px;
  font-size: 14px;
}

.btn-nav:hover {
  background: var(--cyan-400);
  color: var(--navy-900);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 16px;
  border-radius: var(--radius-md);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--white);
  padding: 140px 24px 80px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--navy-700);
  border: 1px solid var(--slate-300);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--navy-900);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--slate-600);
  max-width: 540px;
  margin-bottom: 20px;
}

.hero-sub--emphasis {
  color: var(--navy-900);
  font-weight: 500;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 13px;
  color: var(--slate-600);
  font-weight: 500;
}

.hero-device {
  display: flex;
  justify-content: center;
  align-items: center;
}

.device-img {
  width: 100%;
  max-width: 800px;
  height: auto;
  object-fit: contain;
}

/* ---------- Trust Bar ---------- */
.trust-bar {
  background: var(--slate-100);
  padding: 28px 0;
  border-bottom: 1px solid var(--slate-200);
}

.trust-label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate-500);
  margin-bottom: 16px;
}

.trust-items {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--slate-700);
  font-size: 14px;
  font-weight: 500;
}

.trust-item svg {
  flex-shrink: 0;
  color: var(--navy-700);
}

/* ---------- Sections common ---------- */
.section-title {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  color: var(--navy-900);
  text-align: center;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.section-title--left {
  text-align: left;
}

.section-sub {
  font-size: 17px;
  color: var(--slate-600);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.section-sub--left {
  text-align: left;
  margin: 0 0 32px;
}

/* ---------- What Ships / Kit ---------- */
.whats-included {
  padding: 96px 0;
  background: var(--white);
}

.kit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.kit-item {
  text-align: center;
  padding: 32px 24px;
}

.kit-icon {
  color: var(--cyan-500);
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.kit-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 12px;
}

.kit-item p {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
}

/* ---------- Why Functional Testing ---------- */
.why-functional {
  padding: 96px 0;
  background: var(--slate-100);
}

.why-functional-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.why-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.why-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.why-icon {
  color: var(--navy-700);
  margin-bottom: 16px;
}

.why-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 12px;
}

.why-card p {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
}

.why-functional-cta {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-top: 48px;
  flex-wrap: wrap;
}

/* ---------- How It Works ---------- */
.how-it-works {
  padding: 96px 0;
  background: var(--white);
}

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

.step {
  text-align: center;
  padding: 32px 24px;
  position: relative;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--cyan-500);
  color: var(--white);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-icon {
  color: var(--cyan-500);
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.step h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 12px;
}

.step p {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
}

/* ---------- Features ---------- */
.features {
  padding: 96px 0;
  background: var(--slate-100);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--slate-200);
  transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feature-icon {
  color: var(--navy-700);
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
  margin-bottom: 16px;
}

.feature-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--navy-700);
  background: var(--slate-100);
  padding: 4px 10px;
  border-radius: 100px;
}

/* ---------- Evidence ---------- */
.evidence {
  padding: 96px 0;
  background: var(--white);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.evidence-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.evidence-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.evidence-list li svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.evidence-list li div {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
}

.evidence-list li strong {
  color: var(--navy-900);
}

.evidence-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.metric-card {
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
}

.metric-value {
  display: block;
  font-size: 36px;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 14px;
  color: var(--slate-600);
  line-height: 1.5;
}

.metric-label small {
  display: block;
  font-size: 12px;
  color: var(--slate-500);
  margin-top: 4px;
}

/* ---------- Comparison ---------- */
.comparison {
  padding: 96px 0;
  background: var(--slate-100);
}

.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  background: var(--white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.comparison-table th,
.comparison-table td {
  padding: 16px 20px;
  text-align: left;
  border-bottom: 1px solid var(--slate-200);
}

.comparison-table thead th {
  background: var(--slate-100);
  color: var(--navy-900);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.comparison-table thead th.highlight {
  color: var(--navy-700);
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--navy-900);
}

.comparison-table td.highlight {
  color: var(--navy-900);
  font-weight: 600;
  background: rgba(0, 212, 255, 0.04);
}

.comparison-table tbody tr:last-child td {
  border-bottom: none;
}

.comparison-table tbody tr:hover {
  background: var(--slate-100);
}

.comparison-table tbody tr:hover td.highlight {
  background: rgba(0, 212, 255, 0.08);
}

/* ---------- Testimonials ---------- */
.testimonials {
  padding: 96px 0;
  background: var(--white);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--slate-100);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scenario-label {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-700);
  margin-bottom: 12px;
}

.testimonial-card p {
  font-size: 15px;
  color: var(--slate-600);
  line-height: 1.7;
  flex-grow: 1;
}

/* ---------- CTA ---------- */
.cta {
  padding: 96px 0;
  background: var(--slate-100);
}

.cta-content {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.cta h2 {
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta p {
  font-size: 17px;
  color: var(--slate-600);
  margin-bottom: 40px;
}

.cta-form {
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  margin-bottom: 24px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--navy-900);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-family);
  font-size: 15px;
  padding: 12px 14px;
  border: 1.5px solid var(--slate-300);
  border-radius: var(--radius-sm);
  background: var(--white);
  color: var(--slate-800);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cyan-500);
  box-shadow: 0 0 0 3px rgba(0, 184, 217, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--slate-400);
}

.form-group select {
  cursor: pointer;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.cta-form .btn {
  width: 100%;
}

.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--slate-500);
  margin-top: 12px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--slate-100);
  padding: 64px 0 32px;
  color: var(--slate-600);
  border-top: 1px solid var(--slate-200);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--navy-900);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--slate-600);
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--navy-900);
}

.footer-bottom {
  border-top: 1px solid var(--slate-200);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: var(--slate-500);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero-sub {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-device {
    order: -1;
  }

  .device-img {
    max-width: 500px;
  }

  .evidence-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .section-title--left {
    text-align: center;
  }

  .section-sub--left {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }

  .evidence-list {
    max-width: 560px;
    margin: 0 auto;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--slate-200);
    box-shadow: var(--shadow-md);
  }

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

  .nav-toggle {
    display: flex;
  }

  .why-functional-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

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

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

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

  .hero-stats {
    gap: 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .evidence-metrics {
    grid-template-columns: 1fr 1fr;
  }

  .comparison-table {
    font-size: 13px;
  }

  .comparison-table th,
  .comparison-table td {
    padding: 12px 14px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding-top: 100px;
    padding-bottom: 60px;
  }

  .hero-stats {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }

  .trust-items {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .evidence-metrics {
    grid-template-columns: 1fr;
  }
}