/* ============================================================
   VOVOCI Landing Page — Editorial Redesign
   ============================================================ */

:root {
  --bg: #f3efe7;
  --surface: #fbf7f1;
  --card: #fffdf9;
  --primary: #1f6b63;
  --primary-dark: #175550;
  --primary-light: rgba(31, 107, 99, 0.07);
  --primary-border: rgba(31, 107, 99, 0.18);
  --accent: #c86f4a;
  --accent-light: rgba(200, 111, 74, 0.08);
  --text: #2a2520;
  --text-secondary: #5a524a;
  --text-muted: #8a8078;
  --border: #e0d8cf;
  --code-bg: #2a2520;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1), 0 4px 12px rgba(0,0,0,0.04);
  --radius: 10px;
  --radius-lg: 16px;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --nav-h: 68px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 16px;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ----- Accessibility ----- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 12px 24px;
  background: var(--primary);
  color: #fff;
  border-radius: 0 0 8px 8px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* ----- Reduced motion ----- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  html { scroll-behavior: auto; }
  .fade-in { opacity: 1; transform: none; }
  .stagger-in > * { opacity: 1; transform: none; }
  .hero-banner, .hero-content > * { opacity: 1; transform: none; }
  .hero-bg-svg { display: none; }
}

/* ----- Layout ----- */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 28px;
}

.section {
  padding: clamp(64px, 8vw, 112px) 0;
}

.section--surface {
  background: var(--surface);
}

.section--left h2 {
  text-align: left;
}

.section--left .section-intro {
  text-align: left;
  margin: 0 0 56px;
}

.section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 400;
  color: var(--text);
  margin-bottom: 20px;
  text-align: center;
}

.section-intro {
  text-align: center;
  color: var(--text-secondary);
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  max-width: 640px;
  margin: 0 auto 56px;
  line-height: 1.7;
}

/* ----- Fade-in animation ----- */
.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ----- Stagger children animation ----- */
.stagger-in > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.stagger-in.visible > * {
  opacity: 1;
  transform: translateY(0);
}

.stagger-in.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-in.visible > *:nth-child(2) { transition-delay: 100ms; }
.stagger-in.visible > *:nth-child(3) { transition-delay: 200ms; }
.stagger-in.visible > *:nth-child(4) { transition-delay: 300ms; }
.stagger-in.visible > *:nth-child(5) { transition-delay: 400ms; }
.stagger-in.visible > *:nth-child(6) { transition-delay: 500ms; }
.stagger-in.visible > *:nth-child(7) { transition-delay: 600ms; }

/* ----- Hero entrance choreography ----- */
.hero-banner {
  opacity: 0;
  transform: translateY(20px) scale(0.98);
  animation: hero-img-in 0.8s cubic-bezier(0.22, 1, 0.36, 1) 0.1s forwards;
}

.hero-content > * {
  opacity: 0;
  transform: translateY(20px);
  animation: hero-text-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-content > *:nth-child(1) { animation-delay: 0.5s; }
.hero-content > *:nth-child(2) { animation-delay: 0.65s; }
.hero-content > *:nth-child(3) { animation-delay: 0.75s; }
.hero-content > *:nth-child(4) { animation-delay: 0.85s; }

@keyframes hero-img-in {
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes hero-text-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: var(--surface);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}

@supports (backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px)) {
  #navbar {
    background: rgba(251, 247, 241, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

#navbar.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--border);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text);
  flex-shrink: 0;
}

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

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

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s ease;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: width 0.25s ease;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.nav-github:hover {
  color: var(--primary);
}

.nav-github svg {
  width: 20px;
  height: 20px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.nav-github:hover svg {
  opacity: 1;
}

/* Hamburger button — hidden on desktop */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: background 0.2s;
  flex-shrink: 0;
}

.nav-hamburger:hover {
  background: var(--primary-light);
}

.hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.3s ease, background 0.2s;
}

.nav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-hamburger[aria-expanded="true"] .hamburger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile menu panel */
.nav-mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 16px 0 24px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-mobile-menu.open {
  max-height: 600px;
}

.nav-mobile-link {
  display: block;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
}

.nav-mobile-link:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-mobile-lang {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 28px 0;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.nav-mobile-lang-opt {
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: 6px;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  font-family: var(--font-body);
}

.nav-mobile-lang-opt:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
}

@supports (backdrop-filter: blur(12px)) or (-webkit-backdrop-filter: blur(12px)) {
  .nav-mobile-menu {
    background: rgba(251, 247, 241, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }
}

/* Show hamburger, hide desktop links at <=1024px */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }

  .lang-switcher {
    display: none;
  }

  .nav-github {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-mobile-menu {
    display: flex;
  }
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  position: relative;
  padding-top: var(--nav-h);
  padding-bottom: 0;
  background: #1a2e2b;
  overflow: hidden;
}

/* Animated SVG background */
.hero-bg-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.orb {
  animation: float-orb 12s ease-in-out infinite;
  opacity: 0.7;
}

.orb-1 { animation-delay: 0s; }
.orb-2 { animation-delay: -4s; animation-duration: 16s; }
.orb-3 { animation-delay: -8s; animation-duration: 20s; }

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -20px) scale(1.1); }
  50% { transform: translate(-20px, 15px) scale(0.95); }
  75% { transform: translate(15px, 25px) scale(1.05); }
}

/* Hero banner image */
.hero-banner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 40px 28px 0;
}

.hero-banner-img {
  width: 100%;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  box-shadow: 0 -4px 40px rgba(31, 107, 99, 0.3);
  display: block;
}

/* Hero text content below image */
.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-top: clamp(40px, 5vw, 64px);
  padding-bottom: clamp(56px, 7vw, 88px);
}

.hero-content h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 400;
  line-height: 1.2;
  color: #ffffff;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: clamp(1rem, 1.6vw, 1.12rem);
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.75;
  margin-bottom: 16px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.hero-small {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.58);
  margin-bottom: 36px;
  font-style: italic;
}

.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Override button colors in dark hero */
#hero .btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

#hero .btn-primary:hover {
  background: #b5613f;
  border-color: #b5613f;
  box-shadow: 0 4px 20px rgba(200, 111, 74, 0.3);
}

#hero .btn-secondary {
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.25);
}

#hero .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.4);
}

/* ============================================================
   HERO-LIKE DARK SECTION
   ============================================================ */
.section--hero-like {
  background: #1a2e2b;
  color: rgba(255, 255, 255, 0.86);
}

.section--hero-like h2 {
  color: #ffffff;
}

.section--hero-like .section-intro {
  color: rgba(255, 255, 255, 0.72);
}

.table-wrapper {
  overflow-x: auto;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  overflow: hidden;
}

.comparison-table th,
.comparison-table td {
  text-align: left;
  padding: 14px 16px;
}

.comparison-table th {
  color: #ffffff;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.comparison-table td {
  color: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

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

.card--dark {
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: none;
}

.card--dark h3 {
  color: #ffffff;
}

.card--dark p {
  color: rgba(255, 255, 255, 0.82);
}

.card--dark a {
  color: #a8d4c8;
}

.card--dark a:hover {
  color: #c8e8dc;
}

.card--dark-gap {
  margin-top: 16px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  font-family: var(--font-body);
  letter-spacing: 0.01em;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-primary:hover {
  background: #b5613f;
  border-color: #b5613f;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(200, 111, 74, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary-border);
}

.btn-secondary:hover {
  background: var(--primary-light);
  border-color: var(--primary);
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
#how-it-works {
  background: var(--surface);
}

/* Phase Labels */
.phase-label {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 32px;
  margin-top: 8px;
}

.phase-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}

.phase-tag--active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.phase-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: var(--text);
}

/* Setup Flow (2 steps) */
.setup-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 56px;
  padding: 36px 40px;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.setup-step {
  flex: 1;
  text-align: center;
  padding: 0 20px;
}

.setup-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
}

.setup-step h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 8px;
  color: var(--text);
}

.setup-step p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 280px;
  margin: 0 auto;
}

.setup-arrow {
  display: flex;
  align-items: center;
  padding-top: 18px;
  color: var(--primary);
  flex-shrink: 0;
}

/* App Screenshot */
.setup-screenshot {
  margin-bottom: 48px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.setup-screenshot-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

/* Daily Use — image + steps side by side */
.daily-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
}

.daily-image {
  position: relative;
}

.daily-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.daily-steps {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.daily-step {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.daily-step-num {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.95rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(31, 107, 99, 0.2);
}

.daily-step-body h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 6px;
}

.daily-step-body p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Output apps fan-out */
.output-apps {
  display: flex;
  gap: 16px;
  margin-top: 14px;
}

.app-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s;
  min-width: 44px;
  min-height: 44px;
}

.app-icon:hover {
  background: var(--primary-light);
}

.app-icon svg {
  width: 26px;
  height: 26px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

.app-icon span {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
}

.app-icon:hover svg {
  color: var(--primary);
}

/* NVIDIA Callout */
.nvidia-callout {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 28px 32px;
  background: rgba(31, 107, 99, 0.04);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: 720px;
  margin: 0 auto;
}

.nvidia-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.nvidia-icon svg {
  width: 32px;
  height: 32px;
}

.nvidia-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

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

/* ============================================================
   FEATURES
   ============================================================ */
/* 2-3-2 rhythm: wide → standard → wide */
.features-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid transparent;
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.25s ease,
              border-color 0.25s ease;
  grid-column: span 2;
}

/* Row 1: first 2 cards span 3 cols each (wide) */
.features-grid .card:nth-child(1),
.features-grid .card:nth-child(2) {
  grid-column: span 3;
  padding: 36px 32px;
}

.features-grid .card:nth-child(1) h3,
.features-grid .card:nth-child(2) h3 {
  font-size: 1.35rem;
}

/* Row 2: cards 3-5 span 2 cols each (standard, fills 6) */

/* Row 3: last 2 cards span 3 cols each (wide) */
.features-grid .card:nth-child(6),
.features-grid .card:nth-child(7) {
  grid-column: span 3;
  padding: 36px 32px;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--border);
}

.card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 12px;
  margin-bottom: 16px;
}

.features-grid .card:nth-child(1) .card-icon {
  background: var(--accent-light);
  color: var(--accent);
}

.card h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--primary);
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.65;
}

/* ============================================================
   TERM SCANNER
   ============================================================ */
.scanner-flow {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 48px;
  padding: 36px 32px;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.scanner-step {
  flex: 1;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 0 12px;
}

.scanner-step-num {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(31, 107, 99, 0.2);
}

.scanner-step-body h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 6px;
}

.scanner-step-body p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.scanner-step-body code {
  background: var(--primary-light);
  color: var(--primary);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.85em;
  font-weight: 600;
}

.scanner-arrow {
  display: flex;
  align-items: center;
  padding-top: 6px;
  color: var(--primary);
  flex-shrink: 0;
}

.scanner-prompt-preview {
  max-width: 680px;
}

.scanner-prompt-header {
  margin-bottom: 12px;
}

.scanner-prompt-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--accent-light);
  color: var(--accent);
  border: 1px solid rgba(200, 111, 74, 0.2);
}

.scanner-prompt-code {
  background: var(--code-bg);
  color: #d4d4d4;
  padding: 22px 24px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.7;
  border: 1px solid #333;
}

.scanner-prompt-note {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.6;
  text-align: center;
}

/* ============================================================
   PROVIDERS
   ============================================================ */
.providers-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.provider-item {
  background: var(--card);
  padding: 20px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.provider-item:hover {
  border-color: var(--primary);
  box-shadow: 0 2px 12px rgba(31, 107, 99, 0.1);
  transform: translateY(-2px);
}

.provider-item--highlight {
  border-color: var(--primary);
  background: var(--primary-light);
}

.provider-icon {
  width: 22px;
  height: 22px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.provider-icon svg {
  width: 22px;
  height: 22px;
}

.provider-item--highlight .provider-icon {
  color: var(--primary);
}

.provider-item:hover .provider-icon {
  color: var(--primary);
}

.provider-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-light);
  padding: 2px 8px;
  border-radius: 4px;
}

/* ============================================================
   QUICK START
   ============================================================ */
.steps {
  max-width: 680px;
  margin: 0 auto;
}

.step {
  margin-bottom: 36px;
}

.step h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 400;
  margin-bottom: 14px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 12px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}

.code-wrapper {
  position: relative;
}

.code-block {
  background: var(--code-bg);
  color: #d4d4d4;
  padding: 22px 24px;
  padding-right: 48px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  border: 1px solid #333;
  word-break: break-all;
  overflow-wrap: break-word;
}

.copy-btn {
  position: absolute;
  top: 4px;
  right: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.85);
  border-color: rgba(255, 255, 255, 0.22);
}

.copy-btn .check-icon {
  display: none;
}

.copy-btn.copied .copy-icon {
  display: none;
}

.copy-btn.copied .check-icon {
  display: block;
}

.copy-btn.copied {
  color: #76c991;
  border-color: rgba(118, 201, 145, 0.3);
  background: rgba(118, 201, 145, 0.1);
}

.note {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.9rem;
  margin-top: 8px;
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

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

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

.faq-item:first-child {
  border-top: 1px solid var(--border);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 0;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  line-height: 1.4;
  gap: 16px;
}

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

.faq-chevron {
  flex-shrink: 0;
  color: var(--primary);
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.active .faq-answer {
  grid-template-rows: 1fr;
}

.faq-answer-inner {
  overflow: hidden;
  padding-left: 16px;
  border-left: 2px solid var(--primary-border);
}

.faq-answer-inner p {
  padding-bottom: 22px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--text);
  color: rgba(255, 255, 255, 0.55);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  display: block;
  margin-bottom: 6px;
}

.footer-left p,
.footer-right p {
  font-size: 0.85rem;
}

.footer-right {
  text-align: right;
}

.footer-github {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  margin-bottom: 6px;
  transition: color 0.2s;
}

.footer-github:hover {
  color: #fff;
}

.footer-github svg {
  opacity: 0.7;
  transition: opacity 0.2s;
}

.footer-github:hover svg {
  opacity: 1;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

/* ============================================================
   REAL-WORLD COST
   ============================================================ */
.cost-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: stretch;
  margin-top: 12px;
}

/* Chart */
.cost-chart-wrap {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 28px 20px 16px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cost-svg {
  width: 100%;
  height: auto;
  display: block;
}

.chart-grid {
  stroke: var(--border);
  stroke-width: 1.5;
}

.chart-grid-h {
  stroke: var(--border);
  stroke-width: 0.5;
  stroke-dasharray: 4 4;
  opacity: 0.6;
}

.chart-axis-label {
  font-size: 11px;
  fill: var(--text-muted);
  font-family: var(--font-body);
}

.chart-title-label {
  font-size: 11px;
  fill: var(--text-muted);
  font-family: var(--font-body);
  font-weight: 500;
}

.chart-x-label {
  font-size: 10px;
  fill: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 500;
}

.chart-x-label--highlight {
  fill: var(--primary);
  font-weight: 700;
}

.chart-bar {
  fill: var(--border);
  transition: fill 0.3s;
}

.chart-bar--highlight {
  fill: var(--primary);
}

.chart-bar-label {
  font-size: 12px;
  fill: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  transition: opacity 0.4s;
}

.chart-bar-label--highlight {
  fill: var(--primary-dark);
  font-weight: 700;
  font-size: 13px;
}

.chart-ref-line {
  stroke: var(--accent);
  stroke-width: 1.5;
  stroke-dasharray: 6 4;
  transition: opacity 0.6s;
}

.chart-ref-text {
  font-size: 11px;
  fill: var(--accent);
  font-family: var(--font-body);
  font-weight: 600;
  transition: opacity 0.6s;
}

/* Cost copy */
.cost-copy {
  display: flex;
  flex-direction: column;
}

.cost-example-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.cost-example-header {
  margin-bottom: 16px;
}

.cost-model-tag {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
}

.cost-headline {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-bottom: 18px;
}

.cost-price {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
}

.cost-period {
  font-size: 1.1rem;
  color: var(--text-muted);
  font-weight: 500;
}

.cost-desc {
  font-size: 0.93rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
}

.cost-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.cost-breakdown li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

.cost-breakdown-label {
  color: var(--text-secondary);
}

.cost-breakdown-value {
  color: var(--text);
  font-weight: 600;
  text-align: right;
}

.cost-note {
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-style: italic;
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
  .hero-banner {
    max-width: 720px;
  }

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

  .features-grid .card,
  .features-grid .card:nth-child(1),
  .features-grid .card:nth-child(2),
  .features-grid .card:nth-child(6),
  .features-grid .card:nth-child(7) {
    grid-column: span 1;
    padding: 28px 24px;
  }

  .features-grid .card:nth-child(1) h3,
  .features-grid .card:nth-child(2) h3 {
    font-size: 1.2rem;
  }

  /* 7th card spans full width on 2-col */
  .features-grid .card:last-child {
    grid-column: 1 / -1;
  }

  .daily-section {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .setup-flow {
    padding: 28px 24px;
  }

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

  .scanner-flow {
    padding: 28px 24px;
  }
}

/* Mobile */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .section {
    padding: clamp(48px, 6vw, 80px) 0;
  }

  .nav-github span {
    display: none;
  }

  /* Hero */
  .hero-banner {
    padding: 24px 16px 0;
  }

  .hero-banner-img {
    border-radius: var(--radius) var(--radius) 0 0;
  }

  /* How It Works */
  .setup-flow {
    flex-direction: column;
    align-items: center;
    gap: 24px;
    padding: 28px 20px;
  }

  .setup-arrow {
    transform: rotate(90deg);
    padding: 0;
  }

  .daily-section {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .daily-img {
    max-width: 480px;
    margin: 0 auto;
  }

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

  .features-grid .card,
  .features-grid .card:nth-child(n),
  .features-grid .card:last-child {
    grid-column: span 1;
    padding: 24px 20px;
  }

  /* Providers */
  .providers-grid {
    gap: 10px;
  }

  .provider-item {
    padding: 14px 20px;
    font-size: 0.88rem;
  }

  /* Code */
  .code-block {
    font-size: 0.8rem;
    padding: 16px 18px;
  }

  /* Scanner */
  .scanner-flow {
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 28px 20px;
  }

  .scanner-arrow {
    transform: rotate(90deg);
    padding: 0;
  }

  .scanner-step {
    padding: 0;
  }

  /* Cost */
  .cost-example-card {
    padding: 24px 20px;
  }

  /* NVIDIA callout */
  .nvidia-callout {
    flex-direction: column;
    gap: 12px;
    padding: 20px 24px;
  }

  /* Footer */
  .footer-inner {
    flex-direction: column;
    text-align: center;
    gap: 20px;
    align-items: center;
  }

  .footer-right {
    text-align: center;
  }

  .footer-links {
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
  }
}

/* Small mobile */
@media (max-width: 480px) {
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    justify-content: center;
  }

  .output-apps {
    gap: 12px;
  }
}

/* ============================================================
   Language Switcher
   ============================================================ */

.lang-switcher {
  position: relative;
}

.lang-current {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

.lang-current:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.lang-current svg {
  transition: transform 0.2s;
  flex-shrink: 0;
}

.lang-switcher.open .lang-current svg {
  transform: rotate(180deg);
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 140px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 1001;
}

.lang-switcher.open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: none;
  border: none;
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  border-radius: 6px;
  transition: background 0.15s;
}

.lang-option:hover {
  background: var(--primary-light);
}

.lang-option.active {
  color: var(--primary);
  font-weight: 600;
}

/* Mobile GitHub link in mobile menu */
.nav-mobile-github {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s, background 0.2s;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.nav-mobile-github:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-mobile-github svg {
  width: 20px;
  height: 20px;
  opacity: 0.7;
  flex-shrink: 0;
}