/* ==========================================================================
   Trovu Marketing Website
   ========================================================================== */

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { line-height: 1.6; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* ==========================================================================
   Design Tokens (from DesignTokens.swift)
   ========================================================================== */
:root {
  /* Backgrounds */
  --bg-primary: #0D1B2A;
  --bg-secondary: #1B3A5C;
  --bg-hero: #090D28;

  /* Accent */
  --accent: #E07B39;
  --accent-light: #F29959;
  --accent-glow: rgba(224, 123, 57, 0.15);

  /* Surfaces */
  --surface-card: rgba(255, 255, 255, 0.06);
  --surface-card-hover: rgba(255, 255, 255, 0.10);
  --border-card: rgba(255, 255, 255, 0.10);

  /* Text */
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-tertiary: rgba(255, 255, 255, 0.45);

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-size-hero: clamp(2.25rem, 5vw, 3.75rem);
  --font-size-h2: clamp(1.75rem, 3.5vw, 2.5rem);
  --font-size-h3: clamp(1.15rem, 2vw, 1.4rem);
  --font-size-body: 1.0625rem;
  --font-size-small: 0.875rem;
  --font-size-badge: 0.75rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 100px;

  /* Layout */
  --max-width: 1140px;
  --nav-height: 72px;
}

/* ==========================================================================
   Base
   ========================================================================== */
body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  color: var(--text-primary);
  background: var(--bg-primary);
}

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

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

h1 {
  font-size: var(--font-size-hero);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-h2);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--font-size-h3);
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--space-xs);
}

p {
  color: var(--text-secondary);
  max-width: 640px;
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(13, 27, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-card);
}

.nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-logo img {
  height: 32px;
  width: 32px;
  border-radius: 6px;
}

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

.nav-links a {
  font-size: var(--font-size-small);
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1.25rem;
  background: var(--accent);
  color: var(--text-primary) !important;
  font-weight: 600;
  border-radius: var(--radius-pill);
  font-size: var(--font-size-small);
  transition: background 0.2s;
}

.nav-cta:hover {
  background: var(--accent-light);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile nav */
@media (max-width: 768px) {
  .nav-hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: var(--bg-primary);
    padding: var(--space-lg);
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform 0.3s ease;
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: 1.125rem;
  }

  .nav.menu-open .nav-hamburger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav.menu-open .nav-hamburger span:nth-child(2) {
    opacity: 0;
  }
  .nav.menu-open .nav-hamburger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-2xl);
  background: linear-gradient(135deg, var(--bg-hero) 0%, var(--bg-primary) 50%, var(--bg-secondary) 100%);
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70%;
  height: 140%;
  background: radial-gradient(ellipse, rgba(224, 123, 57, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

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

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-content h1 {
  margin-bottom: var(--space-md);
}

.hero-content .subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero-image {
  position: relative;
  z-index: 1;
}

@media (max-width: 900px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content .subtitle { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero { min-height: auto; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-weight: 600;
  font-size: var(--font-size-body);
  border-radius: var(--radius-pill);
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-primary);
}

.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 0 30px var(--accent-glow);
}

.btn-secondary {
  background: var(--surface-card);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: var(--surface-card-hover);
}

/* ==========================================================================
   Screenshot Placeholder
   ========================================================================== */
.screenshot {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(27, 58, 92, 0.5) 0%, rgba(13, 27, 42, 0.8) 100%);
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px var(--accent-glow);
}

.screenshot::after {
  content: attr(data-label);
  font-size: var(--font-size-small);
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.screenshot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ==========================================================================
   Feature Grid
   ========================================================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.feature-card {
  padding: var(--space-lg) var(--space-md);
  background: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  transition: background 0.2s, border-color 0.2s;
}

.feature-card:hover {
  background: var(--surface-card-hover);
  border-color: rgba(255, 255, 255, 0.18);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(224, 123, 57, 0.12);
  color: var(--accent);
  font-size: 1.5rem;
}

.feature-card h3 {
  color: var(--text-primary);
}

.feature-card p {
  font-size: var(--font-size-small);
  color: var(--text-secondary);
  max-width: none;
}

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

@media (min-width: 769px) and (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   Split Section (text + image)
   ========================================================================== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.split.reverse {
  direction: rtl;
}

.split.reverse > * {
  direction: ltr;
}

.split-text h2 {
  margin-bottom: var(--space-sm);
}

.split-text p {
  margin-bottom: var(--space-md);
}

.split-text ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.split-text li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  color: var(--text-secondary);
  font-size: var(--font-size-small);
}

.split-text li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  background: rgba(224, 123, 57, 0.15);
  border: 2px solid var(--accent);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23E07B39'%3E%3Cpath d='M8.5 13.3l-3-3 1.4-1.4 1.6 1.6 4.6-4.6 1.4 1.4-6 6z'/%3E%3C/svg%3E");
  background-size: 16px;
  background-position: center;
  background-repeat: no-repeat;
}

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

/* ==========================================================================
   Badges / Pills
   ========================================================================== */
.badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: var(--space-sm) 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  font-size: var(--font-size-badge);
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: var(--text-secondary);
}

.badge.accent {
  background: rgba(224, 123, 57, 0.15);
  border-color: rgba(224, 123, 57, 0.3);
  color: var(--accent-light);
}

/* ==========================================================================
   Pricing Cards
   ========================================================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  padding: var(--space-lg);
  background: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-glow);
  position: relative;
}

.pricing-card.featured::before {
  content: 'Most Popular';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: var(--text-primary);
  font-size: var(--font-size-badge);
  font-weight: 700;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.pricing-price {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.pricing-price span {
  font-size: var(--font-size-small);
  font-weight: 400;
  color: var(--text-tertiary);
}

.pricing-description {
  color: var(--text-secondary);
  font-size: var(--font-size-small);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border-card);
}

.pricing-features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: var(--space-md);
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--font-size-small);
  color: var(--text-secondary);
}

.pricing-features li::before {
  content: '';
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23E07B39'%3E%3Cpath d='M8.5 13.3l-3-3 1.4-1.4 1.6 1.6 4.6-4.6 1.4 1.4-6 6z'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}

@media (max-width: 600px) {
  .pricing-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

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

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) 0;
  font-size: var(--font-size-body);
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--text-tertiary);
  transition: transform 0.2s;
  flex-shrink: 0;
  margin-left: var(--space-sm);
}

.faq-item.open .faq-question::after {
  content: '\2212';
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding-bottom: var(--space-md);
  font-size: var(--font-size-small);
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
  text-align: center;
  padding: var(--space-2xl) 0;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-hero) 100%);
}

.cta-section h2 {
  margin-bottom: var(--space-xs);
}

.cta-section p {
  margin: 0 auto var(--space-lg);
  text-align: center;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.cta-section .system-req {
  margin-top: var(--space-xl);
  font-size: var(--font-size-small);
  color: var(--text-tertiary);
}

/* ==========================================================================
   Pricing Strip (home page)
   ========================================================================== */
.pricing-strip {
  text-align: center;
  background: var(--surface-card);
  border-top: 1px solid var(--border-card);
  border-bottom: 1px solid var(--border-card);
}

.pricing-strip-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  max-width: 700px;
  margin: var(--space-lg) auto 0;
  text-align: left;
}

.pricing-strip-tier h3 {
  margin-bottom: var(--space-xs);
}

.pricing-strip-tier p {
  font-size: var(--font-size-small);
}

@media (max-width: 600px) {
  .pricing-strip-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  padding: var(--space-xl) 0 var(--space-lg);
  border-top: 1px solid var(--border-card);
}

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  text-align: center;
}

.footer-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-size: var(--font-size-small);
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-legal {
  font-size: var(--font-size-small);
  color: var(--text-tertiary);
  max-width: 600px;
}

/* ==========================================================================
   Legal Pages (Privacy, Terms)
   ========================================================================== */
.legal-page {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-2xl);
}

.legal-page .container {
  max-width: 760px;
}

.legal-page h1 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--space-xs);
}

.legal-date {
  color: var(--text-tertiary);
  font-size: var(--font-size-small);
  margin-bottom: var(--space-xl);
}

.legal-page h2 {
  font-size: var(--font-size-h3);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
}

.legal-page p,
.legal-page li {
  color: var(--text-secondary);
  font-size: var(--font-size-small);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
  max-width: none;
}

.legal-page ul {
  padding-left: 1.5rem;
  list-style: disc;
}

.legal-page a {
  color: var(--accent-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ==========================================================================
   Support Page
   ========================================================================== */
.support-page {
  padding-top: calc(var(--nav-height) + var(--space-xl));
}

.support-page h1 {
  font-size: var(--font-size-h2);
  margin-bottom: var(--space-xs);
}

.support-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.support-card {
  padding: var(--space-lg) var(--space-md);
  background: var(--surface-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
}

.support-card h3 {
  margin-bottom: var(--space-sm);
}

.support-card p, .support-card li {
  font-size: var(--font-size-small);
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}

.support-card ul {
  padding-left: 1.2rem;
  list-style: disc;
}

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

/* ==========================================================================
   Features Page
   ========================================================================== */
.features-header {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-lg);
  text-align: center;
}

.features-header p {
  margin: var(--space-sm) auto 0;
  text-align: center;
}

.feature-section {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--border-card);
}

.feature-section:nth-child(even) {
  background: rgba(27, 58, 92, 0.1);
}

.badge-label {
  display: block;
  font-size: var(--font-size-badge);
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.4rem;
}

/* ==========================================================================
   Scroll Animations
   ========================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ==========================================================================
   Section header centering
   ========================================================================== */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-header p {
  margin: var(--space-sm) auto 0;
  text-align: center;
}

/* ==========================================================================
   404 Page
   ========================================================================== */
.not-found {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.not-found h1 {
  font-size: 6rem;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.not-found p {
  margin: 0 auto var(--space-lg);
  text-align: center;
}

/* ==========================================================================
   Utility
   ========================================================================== */
.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }