/* ============================================
   HOA AI — Marketing Site Design System
   ============================================ */

:root {
  /* Brand — NEVER purple */
  --color-primary: #1e3a5f;
  --color-primary-light: #2d5a87;
  --color-primary-dark: #152c47;
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;

  /* Neutrals */
  --color-white: #ffffff;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-dark: #0f172a;
  --color-bg-dark-lighter: #1e293b;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;

  /* Text */
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #ffffff;
  --color-text-on-primary: #ffffff;

  /* Status */
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Typography */
  --font-sans: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
               'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --nav-height: 64px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 50px rgba(0,0,0,0.12);
  --shadow-card: 0 4px 24px rgba(30, 58, 95, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(30, 58, 95, 0.12);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: auto; }
body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent-hover); }
ul, ol { list-style: none; }

/* ---- Navigation ---- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background var(--transition-slow), box-shadow var(--transition-slow);
}
.site-nav.nav-transparent {
  background: transparent;
}
.site-nav.nav-transparent .nav-link,
.site-nav.nav-transparent .nav-signin {
  color: rgba(255,255,255,0.85);
}
.site-nav.nav-transparent .nav-link:hover,
.site-nav.nav-transparent .nav-signin:hover {
  color: #fff;
}
.site-nav.nav-transparent .logo-text {
  color: #fff;
}
.site-nav.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.site-nav.scrolled .nav-link,
.site-nav.scrolled .nav-signin {
  color: var(--color-text);
}
.site-nav.scrolled .nav-link:hover {
  color: var(--color-primary);
}
.site-nav.scrolled .logo-text {
  color: var(--color-primary);
}
.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  flex-direction: column;
  gap: 0;
  text-decoration: none;
  margin-top: 6px;
}
.logo-text {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
  letter-spacing: -0.5px;
  transition: color var(--transition-fast);
}
.logo-ai {
  color: var(--color-accent);
  font-weight: var(--font-extrabold);
}
.nav-parent-brand {
  display: block;
  font-size: 9px;
  font-weight: 400;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.3px;
  margin-top: -3px;
  line-height: 1;
}
.site-nav.scrolled .nav-parent-brand {
  color: rgba(0,0,0,0.3);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav-link:hover {
  color: var(--color-primary);
}
.nav-signin {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.nav-signin:hover {
  color: var(--color-primary);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-5);
  background: var(--color-primary);
  color: var(--color-text-on-primary) !important;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background var(--transition-fast);
}
.nav-cta:hover {
  background: var(--color-primary-light);
  color: var(--color-text-on-primary) !important;
}

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}
.site-nav.nav-transparent .nav-hamburger span {
  background: #fff;
}
.site-nav.scrolled .nav-hamburger span {
  background: var(--color-text);
}
.nav-hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile nav */
@media (max-width: 768px) {
  .nav-links {
    display: flex;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--space-6);
    gap: var(--space-4);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }
  .nav-links.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-links .nav-link,
  .nav-links .nav-signin {
    color: var(--color-text) !important;
    font-size: var(--text-base);
  }
  .nav-hamburger {
    display: flex;
  }
}

/* ---- Sections ---- */
.section {
  padding: var(--space-20) var(--space-6);
}
.section-dark {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
}
.section-alt {
  background: var(--color-bg-alt);
}
.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-narrow {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}
.section-title {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.5px;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}
.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}
.section-dark .section-subtitle {
  color: var(--color-text-tertiary);
}
.cta-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 2.5rem;
  font-size: 1.0625rem;
  color: rgba(255,255,255,0.7);
}
.cta-bullets li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.cta-bullets li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

@media (max-width: 768px) {
  .section { padding: var(--space-16) var(--space-5); }
  .section-title { font-size: var(--text-3xl); }
  .section-subtitle { font-size: var(--text-base); }
}

/* ---- Hero ---- */
.hero {
  padding: calc(var(--nav-height) + var(--space-20)) var(--space-6) var(--space-20);
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  overflow: hidden;
}
.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
.hero-content {
  max-width: 560px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-6);
}
.hero-title {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  line-height: 1.1;
  letter-spacing: -1px;
  margin-bottom: var(--space-6);
}
.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-tertiary);
  line-height: 1.7;
  margin-bottom: var(--space-8);
}
.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-proof {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.2px;
}
.hero-proof-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  flex-shrink: 0;
  box-shadow: 0 0 6px rgba(34,197,94,0.6);
  animation: dotpulse-hero 2s ease-in-out infinite;
}
@keyframes dotpulse-hero {
  0%, 100% { box-shadow: 0 0 4px rgba(34,197,94,0.4); opacity: 1; }
  50% { box-shadow: 0 0 12px rgba(34,197,94,0.8); opacity: 0.6; }
}
.hero-visual {
  position: relative;
}
.hero-screenshot {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 60px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.1);
}

@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-content { max-width: 100%; margin: 0 auto; }
  .hero-title { font-size: var(--text-4xl); }
  .hero-buttons { justify-content: center; }
  .hero-proof { justify-content: center; text-align: center; }
  .hero-visual { max-width: 500px; margin: 0 auto; }
}
@media (max-width: 640px) {
  .hero { padding-top: calc(var(--nav-height) + var(--space-12)); padding-bottom: var(--space-12); }
  .hero-title { font-size: var(--text-3xl); }
  .hero-subtitle { font-size: var(--text-base); }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  line-height: 1.4;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-white);
}
.btn-secondary {
  background: rgba(255,255,255,0.1);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.18);
  color: var(--color-white);
}
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  background: var(--color-bg-alt);
  border-color: var(--color-primary-light);
  color: var(--color-primary);
}
.btn-dark {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-dark:hover {
  background: var(--color-primary-light);
  color: var(--color-white);
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  border-radius: var(--radius-lg);
}

/* ---- Cards ---- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.08);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-5);
  color: var(--color-accent);
}
.card-icon svg {
  width: 24px;
  height: 24px;
}
.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
}
.card-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ---- Combo: Featured Hero + Thumbnail Strip (F+H) ---- */
.combo-featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: 2.5rem;
  margin-bottom: 1.5rem;
  min-height: 320px;
  box-shadow: var(--shadow-card);
}
.combo-featured-content .combo-tag {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-accent);
  background: rgba(59,130,246,0.08);
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.75rem;
}
.combo-featured-content h3 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.combo-featured-content p {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}
.combo-featured-chat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  display: flex;
  flex-direction: column;
}
.combo-chat-header {
  text-align: center;
  padding: 12px 16px 10px;
  border-bottom: 1px solid #e5e5e5;
}
.combo-chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1e3a5f, #3b82f6);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 3px;
}
.combo-chat-name {
  font-size: 12px;
  font-weight: 600;
  color: #000;
}
.combo-chat-body {
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--color-surface);
}
.combo-chat-msg {
  max-width: 85%;
  padding: 8px 14px;
  font-size: 14px;
  line-height: 1.35;
  word-wrap: break-word;
}
.combo-chat-msg.user {
  align-self: flex-end;
  background: #007AFF;
  color: #fff;
  border-radius: 18px 18px 4px 18px;
}
.combo-chat-msg.ai {
  align-self: flex-start;
  background: #E9E9EB;
  color: #000;
  border-radius: 18px 18px 18px 4px;
}
.combo-chat-msg .cite {
  display: block;
  font-size: 11px;
  color: #86868b;
  font-style: italic;
  margin-top: 4px;
}
.combo-chat-photo {
  display: block;
  max-width: 140px;
  border-radius: 12px;
  margin-bottom: 6px;
}
.combo-typing {
  align-self: flex-start;
  background: #E9E9EB;
  border-radius: 18px 18px 18px 4px;
  padding: 10px 16px;
  display: flex;
  gap: 4px;
  align-items: center;
}
.combo-typing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #999;
  animation: comboTypingBounce 1.2s infinite;
}
.combo-typing-dot:nth-child(2) { animation-delay: 0.15s; }
.combo-typing-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes comboTypingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}
.combo-thumbs {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.75rem;
}
.combo-thumb {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s;
}
.combo-thumb:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(30, 58, 95, 0.08);
}
.combo-thumb.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(30, 58, 95, 0.2);
}
/* Auto-cycle fill animation */
.combo-thumb {
  position: relative;
  overflow: hidden;
}
.combo-thumb-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--color-primary);
  border-radius: 0 0 12px 12px;
  pointer-events: none;
}
.combo-thumb.cycling {
  border-color: rgba(30, 58, 95, 0.2);
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(30, 58, 95, 0.14), 0 2px 8px rgba(30, 58, 95, 0.08);
  background: #fff;
}
.combo-thumb.cycling .combo-thumb-icon {
  background: rgba(30, 58, 95, 0.1);
  color: var(--color-primary);
}
.combo-thumb-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(30,58,95,0.06);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 0.75rem;
  transition: all 0.25s;
}
.combo-thumb.active .combo-thumb-icon {
  background: rgba(255,255,255,0.15);
  color: #fff;
}
.combo-thumb-icon svg { width: 18px; height: 18px; }
.combo-thumb-label {
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.3;
}
.combo-featured.swapping .combo-featured-content,
.combo-featured.swapping .combo-featured-chat {
  opacity: 0;
  transform: translateY(8px);
}
.combo-featured-content,
.combo-featured-chat {
  transition: opacity 0.25s ease, transform 0.25s ease;
  opacity: 1;
  transform: translateY(0);
}
@media (max-width: 1024px) {
  .combo-thumbs { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .combo-featured { grid-template-columns: 1fr; padding: 1.75rem; }
  .combo-featured-chat { order: -1; }
  .combo-thumbs { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Grid Layouts ---- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}
.grid-2x3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2x3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2x3 { grid-template-columns: 1fr; }
}

/* ---- Steps (How It Works) ---- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-12);
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.67% + 28px);
  right: calc(16.67% + 28px);
  height: 2px;
  background: var(--color-border);
}
.step {
  text-align: center;
  position: relative;
}
.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin: 0 auto var(--space-6);
  position: relative;
  z-index: 1;
}
.step-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-3);
}
.step-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .steps { grid-template-columns: 1fr; gap: var(--space-8); }
  .steps::before { display: none; }
}

/* ---- Pricing Cards ---- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  position: relative;
}
.pricing-card.featured {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-xl);
  transform: scale(1.03);
}
.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.pricing-name {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-2);
}
.pricing-price {
  font-size: var(--text-5xl);
  font-weight: var(--font-extrabold);
  color: var(--color-primary);
  margin-bottom: var(--space-1);
}
.pricing-price span {
  font-size: var(--text-lg);
  font-weight: var(--font-normal);
  color: var(--color-text-secondary);
}
.pricing-desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}
.pricing-features {
  text-align: left;
  margin-bottom: var(--space-8);
}
.pricing-features li {
  font-size: var(--text-sm);
  padding: var(--space-2) 0;
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: var(--color-text);
}
.pricing-features li::before {
  content: '';
  width: 20px;
  height: 20px;
  min-width: 20px;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='%2310b981' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z'/%3E%3C/svg%3E") no-repeat center;
}
.pricing-card .btn {
  width: 100%;
}

@media (max-width: 1024px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card.featured { transform: none; }
}

/* ---- Feature Comparison Table ---- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: var(--space-16);
}
.comparison-table th,
.comparison-table td {
  padding: var(--space-4) var(--space-6);
  text-align: center;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--text-sm);
}
.comparison-table th {
  background: var(--color-bg-alt);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}
.comparison-table td:first-child {
  text-align: left;
  font-weight: var(--font-medium);
}
.comparison-table .check {
  color: var(--color-success);
  font-size: var(--text-lg);
}
.comparison-table .dash {
  color: var(--color-text-tertiary);
}

/* ---- FAQ Accordion ---- */
/* Trust Strip */
.trust-strip {
  padding: 2rem 1.5rem;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}
.trust-strip-inner {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}
.trust-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}
@media (max-width: 768px) {
  .trust-strip-inner { gap: 1.5rem 2rem; justify-content: center; }
}

.faq-list {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-5) 0;
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
}
.faq-question:hover {
  color: var(--color-primary);
}
.faq-icon {
  width: 20px;
  height: 20px;
  min-width: 20px;
  transition: transform var(--transition-base);
  color: var(--color-text-tertiary);
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}
.faq-answer-inner {
  padding: 0 0 var(--space-5);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ---- iPhone Chat Demo ---- */
.iphone-frame {
  max-width: 340px;
  margin: 0 auto;
  background: #000;
  border-radius: 44px;
  padding: 12px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.5), inset 0 0 0 2px #333;
  position: relative;
}
.iphone-screen {
  background: #fff;
  border-radius: 34px;
  overflow: hidden;
  position: relative;
}
/* Notch / Dynamic Island */
.iphone-notch {
  width: 120px;
  height: 28px;
  background: #000;
  border-radius: 0 0 18px 18px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
/* Status bar */
.iphone-status {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 24px 0;
  font-size: 12px;
  font-weight: 600;
  color: #000;
  height: 20px;
}
.iphone-status-time { font-size: 13px; font-weight: 700; }
.iphone-status-icons { display: flex; gap: 4px; align-items: center; }
.iphone-status-icons svg { width: 16px; height: 12px; }
/* Chat header */
.imessage-header {
  text-align: center;
  padding: 8px 16px 10px;
  border-bottom: 1px solid #e5e5e5;
}
.imessage-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #1e3a5f, #3b82f6);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 4px;
}
.imessage-name {
  font-size: 13px;
  font-weight: 600;
  color: #000;
}
/* Messages area */
.demo-messages {
  padding: 12px 10px;
  height: 460px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
  scroll-behavior: smooth;
  background: #fff;
}
/* Custom scrollbar */
.demo-messages::-webkit-scrollbar { width: 3px; }
.demo-messages::-webkit-scrollbar-track { background: transparent; }
.demo-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.15); border-radius: 3px; }
.demo-messages::-webkit-scrollbar-thumb:hover { background: rgba(0,0,0,0.3); }
.demo-messages { scrollbar-width: thin; scrollbar-color: rgba(0,0,0,0.15) transparent; }
/* iMessage bubbles */
.demo-msg {
  max-width: 78%;
  padding: 8px 14px;
  font-size: 15px;
  line-height: 1.35;
  opacity: 0;
  transform: translateY(8px);
  animation: fadeInMsg 0.35s forwards;
  clear: both;
  word-wrap: break-word;
}
.demo-msg-user {
  align-self: flex-end;
  background: #007AFF;
  color: #fff;
  border-radius: 18px 18px 4px 18px;
}
.demo-msg-bot {
  align-self: flex-start;
  background: #E9E9EB;
  color: #000;
  border-radius: 18px 18px 18px 4px;
}
.demo-msg-image {
  width: 160px;
  border-radius: 12px;
  margin-bottom: 6px;
}
/* Typing indicator */
.demo-typing {
  align-self: flex-start;
  background: #E9E9EB;
  border-radius: 18px 18px 18px 4px;
  padding: 10px 16px;
  display: flex;
  gap: 4px;
  align-items: center;
  opacity: 0;
  transform: translateY(8px);
  animation: fadeInMsg 0.3s forwards;
}
.demo-typing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #999;
  animation: typingBounce 1.2s infinite;
}
.demo-typing-dot:nth-child(2) { animation-delay: 0.15s; }
.demo-typing-dot:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingBounce {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
  30% { transform: translateY(-4px); opacity: 1; }
}
/* Home indicator */
.iphone-home-bar {
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}
.iphone-home-bar span {
  width: 120px;
  height: 4px;
  background: #ccc;
  border-radius: 4px;
}
@keyframes fadeInMsg {
  to { opacity: 1; transform: translateY(0); }
}
/* Dark section override: keep iPhone visible on dark bg */
.section-dark .iphone-frame {
  box-shadow: 0 25px 60px rgba(0,0,0,0.6), 0 0 80px rgba(59,130,246,0.08), inset 0 0 0 2px #444;
}

@media (max-width: 768px) {
  .demo-messages { height: 380px; }
  .combo-featured { min-height: auto; }
}
@media (max-width: 640px) {
  .iphone-frame { width: 290px; max-width: 290px; border-radius: 38px; padding: 10px; margin: 0 auto; }
  .iphone-screen { border-radius: 30px; }
  .iphone-notch { width: 100px; height: 24px; border-radius: 0 0 14px 14px; }
  .demo-messages { height: 400px; }
  .demo-msg { font-size: 14px; }
  .demo-msg-image { width: 120px; }
}

/* ---- Trust / Stats Bar ---- */
.trust-bar {
  display: flex;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
  margin-bottom: var(--space-10);
}
.trust-item {
  text-align: center;
}
.trust-number {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-primary);
}
.trust-label {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: var(--space-16) var(--space-6) var(--space-8);
}
.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}
.footer-brand p {
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  margin-top: var(--space-3);
  max-width: 280px;
  line-height: 1.6;
}
.footer-col h4 {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-4);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.footer-col a {
  display: block;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
  padding: var(--space-1) 0;
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: #fff;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-8);
  text-align: center;
}
.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

@media (max-width: 768px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
}

/* ---- Fade-in Animation ---- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Demo Page Tabs ---- */
.tabs {
  display: flex;
  gap: var(--space-1);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-1);
  max-width: 400px;
  margin: 0 auto var(--space-10);
}
.tab-btn {
  flex: 1;
  padding: var(--space-3) var(--space-5);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.tab-btn.active {
  background: var(--color-white);
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.tab-content {
  display: none;
}
.tab-content.active {
  display: block;
}

/* ---- Forms ---- */
.form-group {
  margin-bottom: var(--space-5);
}
.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.form-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}
.form-input::placeholder {
  color: var(--color-text-tertiary);
}
.form-error {
  font-size: var(--text-sm);
  color: var(--color-error);
  margin-top: var(--space-2);
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
}

/* ---- Utility ---- */
.text-center { text-align: center; }
.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }