/* ===== REFINED ELEGANCE ===== */
/* Clean, confident design for Photometrics AI */

/* ===== FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap');

/* ===== VARIABLES ===== */
:root {
  /* Backgrounds */
  --bg-dark: #0f1419;
  --bg-navy: #141b24;
  --bg-card: #1a222d;
  --bg-light: #f8f9fa;
  --bg-white: #ffffff;

  /* Accent */
  --accent: #4ea3dc;
  --accent-light: #7dbde8;
  --accent-glow: rgba(78, 163, 220, 0.1);

  /* Text */
  --text-white: #ffffff;
  --text-light: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.5);
  --text-dark: #1a1a2e;
  --text-body: #4a5568;
  --text-subtle: #718096;

  /* Borders */
  --border-light: rgba(255, 255, 255, 0.08);
  --border-dark: rgba(0, 0, 0, 0.08);

  /* Typography */
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 8rem;

  /* Layout */
  --container: 1100px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-full: 100px;

  /* Animation */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.3s;
}

/* ===== UTILITY: Screen Reader Only ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--text-body);
  background: var(--bg-white);
}

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

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 300;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 300;
}

h3 {
  font-size: 1.125rem;
  font-weight: 500;
}

h4 {
  font-size: 1rem;
  font-weight: 500;
}

p {
  margin-bottom: var(--space-sm);
}

.lead {
  font-size: 1.125rem;
  font-weight: 400;
  line-height: 1.8;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.accent {
  color: var(--accent);
}

.text-gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== LAYOUT ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

section {
  padding: var(--space-2xl) 0;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) forwards;
}

.reveal-1 { animation-delay: 0.1s; }
.reveal-2 { animation-delay: 0.2s; }
.reveal-3 { animation-delay: 0.3s; }
.reveal-4 { animation-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { animation: none; opacity: 1; }
}

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-sm) 0;
  transition: all var(--duration) var(--ease);
}

/* Removed .scrolled - now using theme-based backgrounds */

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

.logo img {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 400;
  transition: color var(--duration) var(--ease);
}

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

.nav-cta {
  padding: 0.5rem 1.25rem;
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-white) !important;
  font-weight: 500;
  transition: all var(--duration) var(--ease);
}

.nav-cta:hover {
  background: var(--text-white);
  color: var(--bg-dark) !important;
}

/* Logo switching for theme */
.logo-light { display: none; }
.logo-dark { display: block; }

/* Dark theme header (over dark sections) */
.site-header.theme-dark {
  background: var(--bg-dark);
}

/* Light theme header (over white sections) */
.site-header.theme-light {
  background: var(--bg-white);
}

.site-header.theme-light .nav-links a {
  color: var(--text-body);
}

.site-header.theme-light .nav-links a:hover {
  color: var(--text-dark);
}

.site-header.theme-light .nav-cta {
  border-color: var(--border-dark);
  color: var(--text-dark) !important;
}

.site-header.theme-light .nav-cta:hover {
  background: var(--bg-dark);
  color: var(--text-white) !important;
}

.site-header.theme-light .logo-dark { display: none; }
.site-header.theme-light .logo-light { display: block; }

.site-header.theme-light .hamburger,
.site-header.theme-light .hamburger::before,
.site-header.theme-light .hamburger::after {
  background: var(--text-dark);
}

/* Mobile menu */
.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.hamburger {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-white);
  position: relative;
}

.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 2px;
  background: var(--text-white);
  transition: transform var(--duration) var(--ease);
}

.hamburger::before { top: -6px; }
.hamburger::after { bottom: -6px; }

@media (max-width: 768px) {
  .mobile-menu-toggle { display: block; }

  .nav-links {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    background: rgba(15, 20, 25, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateY(-150%);
    opacity: 0;
    transition: all 0.4s var(--ease);
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-full);
  font-family: var(--font);
  font-weight: 500;
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--duration) var(--ease);
}

.btn-primary {
  background: var(--text-white);
  color: var(--bg-dark);
  border: 1px solid var(--text-white);
}

.btn-primary:hover {
  background: transparent;
  color: var(--text-white);
}

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

.btn-secondary:hover {
  color: var(--text-white);
  border-color: var(--text-white);
}

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

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

/* Subtle glow */
.hero::after {
  content: '';
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(
    ellipse at center,
    rgba(78, 163, 220, 0.08) 0%,
    transparent 60%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero-eyebrow {
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.2s forwards;
}

.hero h1 {
  color: var(--text-white);
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.3s forwards;
}

.hero .lead {
  color: var(--text-light);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.4s forwards;
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s var(--ease) 0.5s forwards;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  opacity: 0;
  animation: fadeIn 1s var(--ease) 1.5s forwards;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}

.scroll-text {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

/* ===== STATS BAR ===== */
.stats-bar {
  background: var(--bg-white);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border-dark);
}

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

.stat-item {
  text-align: center;
}

.stat-value {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 300;
  line-height: 1;
  color: var(--text-dark);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

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

.stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-subtle);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

/* ===== SECTION STYLES ===== */
.section-dark {
  background: var(--bg-dark);
  color: var(--text-white);
}

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

.section-dark p {
  color: var(--text-light);
}

.section-slate {
  background: var(--bg-white);
}

.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header .lead {
  color: var(--text-subtle);
}

.section-dark .section-header .lead {
  color: var(--text-light);
}

/* ===== PROBLEM SECTION (Split) ===== */
.split-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 60vh;
}

.split-left {
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.split-right {
  background: var(--bg-white);
  display: flex;
  align-items: center;
  padding: var(--space-xl);
}

.split-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  line-height: 1.3;
  color: var(--text-white);
}

.split-right .split-content h2 {
  color: var(--text-dark);
}

.split-right p {
  color: var(--text-body);
}

@media (max-width: 900px) {
  .split-section {
    grid-template-columns: 1fr;
  }
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  padding: var(--space-lg);
  transition: all var(--duration) var(--ease);
}

.card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.section-dark .card {
  background: var(--bg-card);
  border-color: var(--border-light);
}

.card-icon {
  width: 48px;
  height: 48px;
  background: var(--bg-white);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 1.25rem;
}

.section-dark .card-icon {
  background: rgba(78, 163, 220, 0.1);
  border-color: rgba(78, 163, 220, 0.2);
}

.card h3 {
  margin-bottom: var(--space-xs);
  color: var(--text-dark);
}

.section-dark .card h3 {
  color: var(--text-white);
}

.card p {
  color: var(--text-subtle);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

.section-dark .card p {
  color: var(--text-light);
}

.card-badge {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: 0.25rem 0.625rem;
  background: var(--bg-white);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  color: var(--accent);
  font-weight: 500;
}

.section-dark .card-badge {
  background: rgba(78, 163, 220, 0.15);
}

/* Cards grid */
.cards-staggered {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.cards-staggered > :nth-child(2) {
  transform: none;
}

@media (max-width: 900px) {
  .cards-staggered {
    grid-template-columns: 1fr;
  }
}

/* ===== MATH SECTION ===== */
.math-section {
  background: var(--bg-white);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.math-equation {
  max-width: 700px;
  margin: 0 auto;
}

.math-line {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.math-number {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.03em;
}

.math-label {
  font-size: 1rem;
  color: var(--text-subtle);
  text-align: left;
}

.math-operator {
  font-size: 2rem;
  font-weight: 300;
  color: var(--text-subtle);
}

.math-result {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-dark);
  margin-top: var(--space-lg);
}

.math-result .math-number {
  font-size: clamp(4rem, 10vw, 6rem);
}

@media (max-width: 600px) {
  .math-line {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: center;
  }
  .math-label {
    text-align: center;
  }
}

/* ===== PROOF SECTION ===== */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.proof-item {
  text-align: center;
  padding: var(--space-md);
}

.proof-value {
  font-size: 2rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.proof-item p {
  font-size: 0.875rem;
  color: var(--text-light);
  margin: 0;
}

@media (max-width: 900px) {
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .proof-grid {
    grid-template-columns: 1fr;
  }
}

/* ===== TABS ===== */
.tabs {
  max-width: 800px;
  margin: 0 auto;
}

.tab-buttons {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.625rem 1.25rem;
  background: transparent;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  color: var(--text-light);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
}

.tab-btn:hover {
  border-color: var(--text-light);
  color: var(--text-white);
}

.tab-btn.active {
  background: var(--text-white);
  border-color: var(--text-white);
  color: var(--bg-dark);
}

.tab-panel {
  display: none;
  animation: fadeIn var(--duration) var(--ease);
}

.tab-panel.active {
  display: block;
}

.tab-content {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: var(--space-lg);
}

.tab-stat {
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--accent);
  margin-bottom: var(--space-xs);
  letter-spacing: -0.02em;
}

.tab-stat-label {
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.benefits-list {
  list-style: none;
  margin-top: var(--space-md);
}

.benefits-list li {
  padding: var(--space-xs) 0;
  padding-left: var(--space-md);
  position: relative;
  color: var(--text-light);
  font-size: 0.9375rem;
}

.benefits-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}

/* ===== PROCESS FLOW ===== */
.process-flow {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-sm);
  position: relative;
  max-width: 900px;
  margin: 0 auto;
}

.process-flow::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 40px;
  right: 40px;
  height: 1px;
  background: var(--border-dark);
}

.section-dark .process-flow::before {
  background: var(--border-light);
}

.process-step {
  flex: 1;
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-number {
  width: 48px;
  height: 48px;
  background: var(--bg-white);
  border: 1px solid var(--border-dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dark);
}

.section-dark .process-number {
  background: var(--bg-card);
  border-color: var(--border-light);
  color: var(--text-white);
}

.process-step h4 {
  margin-bottom: var(--space-xs);
  color: var(--text-dark);
}

.section-dark .process-step h4 {
  color: var(--text-white);
}

.process-step p {
  font-size: 0.8125rem;
  color: var(--text-subtle);
  margin: 0;
}

.section-dark .process-step p {
  color: var(--text-light);
}

@media (max-width: 900px) {
  .process-flow {
    flex-direction: column;
    gap: var(--space-md);
  }

  .process-flow::before {
    top: 0;
    bottom: 0;
    left: 24px;
    right: auto;
    width: 1px;
    height: auto;
  }

  .process-step {
    display: flex;
    gap: var(--space-md);
    text-align: left;
  }

  .process-number {
    flex-shrink: 0;
    margin: 0;
  }
}

/* ===== QUOTE SECTION ===== */
.quote-section {
  background: var(--bg-dark);
  padding: var(--space-2xl) 0;
  text-align: center;
}

.quote-text {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 400;
  color: var(--text-white);
  max-width: 700px;
  margin: 0 auto var(--space-md);
  line-height: 1.5;
}

.quote-text::before,
.quote-text::after {
  content: none;
}

.traction-text {
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.traction-text strong {
  color: var(--text-white);
  font-weight: 500;
}

/* ===== CTA SECTION ===== */
.cta-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  background: var(--bg-white);
}

.cta-content {
  max-width: 600px;
}

.cta-section h2 {
  color: var(--text-dark);
  margin-bottom: var(--space-sm);
}

.cta-section h2 .text-gradient {
  display: block;
}

.cta-section .lead {
  color: var(--text-subtle);
  margin-bottom: var(--space-lg);
}

.cta-section .btn-primary {
  background: var(--accent);
  color: var(--text-white);
  border-color: var(--accent);
}

.cta-section .btn-primary:hover {
  background: var(--accent-light);
  border-color: var(--accent-light);
  color: var(--text-white);
}

.cta-alt {
  margin-top: var(--space-md);
  color: var(--text-subtle);
  font-size: 0.875rem;
}

.cta-alt a {
  color: var(--accent);
}

/* ===== PAGE HEADER ===== */
.page-header {
  padding: calc(var(--space-2xl) + 60px) 0 var(--space-xl);
  background: var(--bg-dark);
  text-align: center;
}

.page-header h1 {
  color: var(--text-white);
}

.page-header .lead {
  max-width: 550px;
  margin: var(--space-sm) auto 0;
  color: var(--text-light);
}

.page-updated {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: var(--space-sm);
}

/* ===== PAGE CONTENT ===== */
.page-content {
  padding: var(--space-xl) 0;
  background: var(--bg-white);
}

.prose {
  max-width: 680px;
  margin: 0 auto;
}

.prose h2 {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border-dark);
  color: var(--text-dark);
}

.prose h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.prose h3 {
  margin-top: var(--space-lg);
  color: var(--text-dark);
}

.prose ul, .prose ol {
  margin-left: var(--space-md);
  margin-bottom: var(--space-md);
}

.prose li {
  margin-bottom: var(--space-xs);
}

.prose strong {
  color: var(--text-dark);
  font-weight: 600;
}

.prose blockquote {
  border-left: 2px solid var(--accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
  font-style: italic;
  color: var(--text-subtle);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.prose th, .prose td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border-dark);
}

.prose th {
  font-weight: 600;
  color: var(--text-dark);
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 680px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--border-dark);
}

.section-dark .faq-item {
  border-color: var(--border-light);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: var(--space-md) 0;
  background: none;
  border: none;
  color: var(--text-dark);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color var(--duration) var(--ease);
}

.section-dark .faq-question {
  color: var(--text-white);
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent);
  transition: transform var(--duration) var(--ease);
}

.faq-item.active .faq-question::after {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease);
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-content {
  padding-bottom: var(--space-md);
  color: var(--text-subtle);
  line-height: 1.8;
}

.section-dark .faq-answer-content {
  color: var(--text-light);
}

/* ===== FOOTER ===== */
.site-footer {
  background: var(--bg-white);
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border-dark);
}

.footer-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-size: 0.8125rem;
  color: var(--text-subtle);
}

.footer-nav {
  display: flex;
  gap: var(--space-lg);
}

.footer-nav a {
  font-size: 0.8125rem;
  color: var(--text-subtle);
  transition: color var(--duration) var(--ease);
}

.footer-nav a:hover {
  color: var(--text-dark);
}

.footer-parent {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8125rem;
  color: var(--text-subtle);
}

.footer-parent img {
  height: 16px;
  opacity: 0.5;
  transition: opacity var(--duration) var(--ease);
}

.footer-parent:hover img {
  opacity: 0.8;
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

/* ===== FORMS ===== */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem 1rem;
  background: var(--bg-white);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  color: var(--text-dark);
  font-family: var(--font);
  font-size: 1rem;
  transition: all var(--duration) var(--ease);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
}

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

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-muted { color: var(--text-subtle); }
.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-lg { margin-top: var(--space-lg); }