/* ═══════════════════════════════════════════════════════════════════
   ClassVRoom — Main Stylesheet
   ═══════════════════════════════════════════════════════════════════ */

/* ── Design Tokens ───────────────────────────────────────────────── */
:root {
  /* Brand */
  --color-primary:        #2a7d7f;
  --color-primary-light:  #3a9b9e;
  --color-primary-dark:   #1e5f61;
  --color-primary-tint:   #e8f5f5;
  --color-accent:         #376265;

  /* Accent */
  --color-accent-electric: #00d4ff;
  --color-accent-glow:     rgba(0, 212, 255, 0.15);

  /* Neutrals */
  --color-bg:             #ffffff;
  --color-bg-tinted:      #f4f8f8;
  --color-bg-dark:        #0d1f20;
  --color-surface:        #ffffff;
  --color-border:         #dde8e8;
  --color-text:           #111e1f;
  --color-text-secondary: #3d5c5e;
  --color-text-muted:     #7a9a9c;

  /* Typography */
  --font:                 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:            'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, 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;

  /* Spacing */
  --space-xs:    0.25rem;
  --space-sm:    0.5rem;
  --space-md:    1rem;
  --space-lg:    1.5rem;
  --space-xl:    2rem;
  --space-2xl:   3rem;
  --space-3xl:   4rem;
  --space-4xl:   6rem;
  --space-5xl:   8rem;

  /* Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.625rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(42, 125, 127, 0.10), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:   0 4px 16px rgba(42, 125, 127, 0.14), 0 2px 6px rgba(0,0,0,0.07);
  --shadow-lg:   0 12px 40px rgba(42, 125, 127, 0.18), 0 4px 12px rgba(0,0,0,0.09);
  --shadow-xl:   0 24px 64px rgba(42, 125, 127, 0.22), 0 8px 24px rgba(0,0,0,0.12);
  --shadow-glow: 0 0 32px rgba(0, 212, 255, 0.18);

  /* Transitions */
  --ease:        cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out:    cubic-bezier(0, 0, 0.2, 1);
  --duration:    220ms;

  /* Layout */
  --container:   1200px;
  --nav-height:  72px;
}

/* ── Reset & Base ────────────────────────────────────────────────── */
*, *::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: var(--text-base);
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
input, select, textarea { font-family: inherit; }

/* ── Layout Utilities ─────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-5xl) 0;
}
.section--tinted { background: var(--color-bg-tinted); }
.section--sm { padding: var(--space-3xl) 0; }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-3xl);
}
.section-header .eyebrow { margin-bottom: var(--space-sm); display: block; }
.section-header h2 { margin-top: var(--space-sm); }

/* ── Typography ──────────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 { font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl)); }
h2 { font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl)); }
h3 { font-size: clamp(var(--text-xl), 2.5vw, var(--text-2xl)); }
h4 { font-size: var(--text-lg); }

p { color: var(--color-text-secondary); line-height: 1.7; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.lead {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.highlight { color: var(--color-primary); }
.highlight--electric { color: var(--color-accent-electric); }

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: var(--text-base);
  line-height: 1;
  border-radius: var(--radius-md);
  padding: 0.85rem 1.6rem;
  transition: all var(--duration) var(--ease);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(42, 125, 127, 0.35);
  letter-spacing: 0.01em;
}
.btn--primary:hover {
  background: var(--color-primary-light);
  box-shadow: 0 6px 24px rgba(42, 125, 127, 0.50);
  transform: translateY(-2px);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--ghost:hover {
  background: var(--color-primary-tint);
}

.btn--ghost-light {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(8px);
}
.btn--ghost-light:hover {
  background: rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.8);
}

.btn--sm  { padding: 0.55rem 1.1rem; font-size: var(--text-sm); }
.btn--lg  { padding: 1rem 2rem; font-size: var(--text-lg); }
.btn--full { width: 100%; }

/* Loading state */
.btn .btn-loading { display: none; }
.btn.loading .btn-text   { display: none; }
.btn.loading .btn-loading { display: inline; }
.btn.loading { opacity: 0.7; cursor: not-allowed; }

/* ── Badges ──────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
}
.badge--award {
  background: rgba(255, 215, 0, 0.18);
  color: #c8930a;
  border: 1px solid rgba(255,215,0,0.4);
}
.badge--platform {
  background: rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
}

/* ══════════════════════════════════════════════════════════════════
   NAVIGATION
   ══════════════════════════════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
}
.nav.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: var(--space-xl);
}

.nav__logo img {
  height: 40px;
  width: auto;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.12));
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  margin-left: auto;
}
.nav__links a {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-text-secondary);
  transition: color var(--duration) var(--ease);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 2px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--duration) var(--ease);
  border-radius: 1px;
}
.nav__links a:hover { color: var(--color-primary); }
.nav__links a:hover::after { transform: scaleX(1); }

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-left: var(--space-md);
}

.nav__lang {
  font-size: var(--text-xs);
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all var(--duration) var(--ease);
}
.nav__lang:hover {
  color: var(--color-primary);
  background: var(--color-primary-tint);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
}
.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: all var(--duration) var(--ease);
}
.nav__hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav__mobile {
  display: none;
  flex-direction: column;
  gap: var(--space-md);
  position: absolute;
  top: var(--nav-height);
  left: 0; right: 0;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-xl);
  box-shadow: var(--shadow-lg);
}
.nav__mobile.open { display: flex; }
.nav__mobile a {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}
.nav__mobile-bottom {
  display: flex;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  flex-wrap: wrap;
}

/* ══════════════════════════════════════════════════════════════════
   HERO
   ══════════════════════════════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.55) saturate(0.9);
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(10, 28, 30, 0.88) 0%,
    rgba(20, 55, 58, 0.80) 45%,
    rgba(10, 25, 26, 0.75) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: var(--space-5xl) var(--space-xl);
  max-width: 780px;
}

.hero__badge {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero__headline {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: var(--space-lg);
}
.hero__headline .highlight {
  color: #7dd8da;
}

.hero__sub {
  font-size: clamp(var(--text-lg), 2.5vw, var(--text-xl));
  color: rgba(255,255,255,0.85);
  max-width: 580px;
  margin-bottom: var(--space-2xl);
  line-height: 1.6;
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
}

.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__meta-item strong {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}
.hero__meta-item span {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.65);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.hero__meta-divider {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,0.25);
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: rgba(255,255,255,0.5);
  animation: bounce 2.4s ease-in-out infinite;
  transition: color var(--duration) var(--ease);
}
.hero__scroll-hint:hover { color: rgba(255,255,255,0.9); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* ══════════════════════════════════════════════════════════════════
   WHAT IS
   ══════════════════════════════════════════════════════════════════ */
.what-is__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.what-is__text h2 {
  margin: var(--space-sm) 0 var(--space-lg);
}
.what-is__text p + p {
  margin-top: var(--space-md);
}

.what-is__logos {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}
.trust-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.meta-store-badge {
  display: inline-flex;
  align-items: center;
  transition: opacity var(--duration) var(--ease);
}
.meta-store-badge:hover { opacity: 0.8; }

.screenshot-frame {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 1.5px solid rgba(42, 125, 127, 0.15);
  position: relative;
  aspect-ratio: 16 / 10;
}
.screenshot-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.screenshot-frame:hover img { transform: scale(1.03); }

/* ══════════════════════════════════════════════════════════════════
   HOW IT WORKS
   ══════════════════════════════════════════════════════════════════ */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.step {
  flex: 1;
  text-align: center;
  padding: var(--space-xl);
}

.step__number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.step__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: var(--radius-xl);
  background: var(--color-primary-tint);
  border: 1.5px solid var(--color-border);
  color: var(--color-primary);
  margin: 0 auto var(--space-lg);
  transition: all var(--duration) var(--ease);
}
.step:hover .step__icon {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step h3 { margin-bottom: var(--space-sm); }
.step p  { font-size: var(--text-sm); max-width: 240px; margin: 0 auto; }

.step__connector {
  flex-shrink: 0;
  width: 48px;
  height: 2px;
  background: var(--color-border);
  margin-top: 52px;
  position: relative;
}
.step__connector::after {
  content: '';
  position: absolute;
  right: -5px;
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-left-color: var(--color-border);
}

/* ══════════════════════════════════════════════════════════════════
   FEATURES
   ══════════════════════════════════════════════════════════════════ */
.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.feature-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration) var(--ease);
}
.feature-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}
.feature-card--large {
  grid-column: span 1;
  background: linear-gradient(145deg, var(--color-primary-tint) 0%, #fff 60%);
  border-color: rgba(42, 125, 127, 0.3);
  box-shadow: var(--shadow-sm);
}

.feature-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-primary-tint);
  border-radius: var(--radius-lg);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
  transition: all var(--duration) var(--ease);
}
.feature-card:hover .feature-card__icon {
  background: var(--color-primary);
  color: #fff;
}

.feature-card h3 { margin-bottom: var(--space-sm); font-size: var(--text-xl); }
.feature-card p  { font-size: var(--text-sm); line-height: 1.7; }

/* ══════════════════════════════════════════════════════════════════
   USE CASES
   ══════════════════════════════════════════════════════════════════ */
.use-cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.use-case-card {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--duration) var(--ease);
}
.use-case-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-primary-light);
}
.use-case-card--featured {
  background: var(--color-primary);
  border-color: var(--color-primary-dark);
  color: #fff;
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.use-case-card--featured:hover {
  background: var(--color-primary-light);
  transform: translateY(-9px);
}
.use-case-card--featured h3,
.use-case-card--featured p,
.use-case-card--featured li  { color: rgba(255,255,255,0.95); }
.use-case-card--featured h3  { color: #fff; }
.use-case-card--featured li::before { color: rgba(255,255,255,0.8); }

.use-case-card__icon:empty {
  display: none;
}
.use-case-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
  display: block;
}

.use-case-card h3 { margin-bottom: var(--space-sm); }
.use-case-card p  { font-size: var(--text-sm); margin-bottom: var(--space-lg); }
.use-case-card ul { display: flex; flex-direction: column; gap: var(--space-sm); }
.use-case-card li {
  font-size: var(--text-sm);
  color: var(--color-text);
  padding-left: 1.2em;
  position: relative;
}
.use-case-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}
.use-case-card--featured li::before { color: #fff; }

/* ══════════════════════════════════════════════════════════════════
   SCREENSHOTS GALLERY
   ══════════════════════════════════════════════════════════════════ */
.screenshots .section-header { margin-bottom: var(--space-2xl); }

.screenshots__gallery {
  width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  position: relative;
  cursor: grab;
  user-select: none;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.screenshots__gallery::-webkit-scrollbar { display: none; }
.screenshots__gallery:active { cursor: grabbing; }

.screenshots__track {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-md) var(--space-xl) var(--space-xl);
}

.screenshot-item {
  flex-shrink: 0;
  width: clamp(280px, 40vw, 560px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
  aspect-ratio: 16/10;
  transition: box-shadow var(--duration) var(--ease), transform var(--duration) var(--ease);
}
.screenshot-item:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px);
}
.screenshot-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.screenshot-item::after {
  content: attr(data-caption);
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: var(--space-lg);
  background: linear-gradient(transparent, rgba(10,30,32,0.85));
  color: rgba(255,255,255,0.9);
  font-size: var(--text-sm);
  transform: translateY(4px);
  opacity: 0;
  transition: all var(--duration) var(--ease);
}
.screenshot-item:hover::after {
  opacity: 1;
  transform: translateY(0);
}

.screenshots__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  padding: 0 var(--space-xl);
}

.gallery-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  background: var(--color-surface);
  transition: all var(--duration) var(--ease);
  box-shadow: var(--shadow-sm);
}
.gallery-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.gallery-dots {
  display: flex;
  gap: var(--space-sm);
}
.gallery-dot {
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  transition: all var(--duration) var(--ease);
  cursor: pointer;
  border: none;
}
.gallery-dot.active {
  background: var(--color-primary);
  width: 24px;
}

/* ══════════════════════════════════════════════════════════════════
   PARTNER / ACADEMIC ORIGIN
   ══════════════════════════════════════════════════════════════════ */
.partner__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3xl);
}

.partner__logo-lockup {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  justify-content: center;
  flex-wrap: wrap;
}

.partner__logo {
  display: block;
  height: 52px;
  width: auto;
}

.partner__logo-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

.partner__logo-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  line-height: 1.4;
  text-align: left;
}

.partner__body {
  max-width: 640px;
  color: var(--color-text-secondary);
  line-height: 1.75;
  font-size: var(--text-base);
}

.partner__body a {
  color: var(--color-primary);
  text-decoration: underline;
}

@media (max-width: 640px) {
  .partner__logo-lockup {
    gap: var(--space-lg);
  }
  .partner__logo-divider {
    display: none;
  }
  .partner__logo-label {
    text-align: center;
  }
}

/* ══════════════════════════════════════════════════════════════════
   MORE SCENARIOS — pill cloud
   ══════════════════════════════════════════════════════════════════ */
.scenarios-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  max-width: 900px;
  margin: 0 auto;
}

.scenario-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.55rem 1.15rem;
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
  transition: all var(--duration) var(--ease);
  cursor: default;
}
.scenario-pill:hover {
  border-color: var(--color-primary-light);
  color: var(--color-primary);
  background: var(--color-primary-tint);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

/* ══════════════════════════════════════════════════════════════════
   CONTACT / LEAD GEN FORM
   ══════════════════════════════════════════════════════════════════ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: var(--space-4xl);
  align-items: start;
}

.contact__text h2 { margin: var(--space-sm) 0 var(--space-lg); }
.contact__text .lead { margin-bottom: var(--space-xl); }

.contact__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.contact__feature {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
}
.contact__feature svg { color: var(--color-primary); flex-shrink: 0; }

.contact-form,
.form-success {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-lg);
}
.form-group:last-of-type { margin-bottom: var(--space-xl); }

.form-group label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}
.required { color: var(--color-primary); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--duration) var(--ease),
              box-shadow var(--duration) var(--ease);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(42, 125, 127, 0.12);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-muted); }
.form-group select { cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 90px; }

.form-group--checkbox { flex-direction: row; align-items: flex-start; }
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  font-weight: 400 !important;
}
.checkbox-label input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  min-width: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  position: relative;
  display: grid;
  place-content: center;
}
.checkbox-label input[type="checkbox"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
}
.checkbox-label input[type="checkbox"]:checked::before {
  content: '';
  width: 10px;
  height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
  display: block;
}
.checkbox-label input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.form-note {
  margin-top: var(--space-md);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
}

[hidden] { display: none !important; }

.form-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: var(--space-md);
  min-height: 320px;
}
.form-success__icon {
  width: 64px; height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-primary-tint);
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  font-size: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.form-success h3 { color: var(--color-text); }
.form-success p  { color: var(--color-text-secondary); max-width: 280px; }

/* ══════════════════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════════════════ */
.footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: var(--space-4xl) 0 var(--space-xl);
}

.footer__top {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: var(--space-4xl);
  margin-bottom: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}
.footer__logo {
  height: 44px;
  width: 44px;
  object-fit: cover;
  border-radius: 10px;
  opacity: 0.9;
}
.footer__brand p { font-size: var(--text-sm); max-width: 260px; line-height: 1.6; }

.footer__meta-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: rgba(255,255,255,0.6);
  transition: color var(--duration) var(--ease);
  width: fit-content;
}
.footer__meta-link:hover { color: #fff; }

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.footer__col h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}
.footer__col a {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  transition: color var(--duration) var(--ease);
}
.footer__col a:hover { color: #fff; }

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}
.footer__legal { font-size: var(--text-xs); color: rgba(255,255,255,0.35); }
.footer__legal a { color: rgba(255,255,255,0.55); transition: color var(--duration); }
.footer__legal a:hover { color: rgba(255,255,255,0.9); }

.footer__legal-links {
  display: flex;
  gap: var(--space-lg);
}
.footer__legal-links a {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.35);
  transition: color var(--duration);
}
.footer__legal-links a:hover { color: rgba(255,255,255,0.8); }

/* ══════════════════════════════════════════════════════════════════
   HERO — BADGE
   ══════════════════════════════════════════════════════════════════ */
/* hero badge removed */

/* ══════════════════════════════════════════════════════════════════
   EVIDENCE / STATS STRIP
   ══════════════════════════════════════════════════════════════════ */
.evidence {
  background: var(--color-bg-dark);
  padding: var(--space-4xl) 0;
  position: relative;
  overflow: hidden;
}
.evidence::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 50% at 50% 0%, rgba(42,125,127,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.evidence__header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}
.evidence__header .eyebrow { color: var(--color-accent-electric); }
.evidence__header h2 { color: #fff; }
.evidence__header p { color: rgba(255,255,255,0.72); max-width: 560px; margin: var(--space-sm) auto 0; }

.evidence__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}
.evidence-stat {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-xl);
  text-align: center;
  transition: all var(--duration) var(--ease);
}
.evidence-stat:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(0,212,255,0.2);
  box-shadow: var(--shadow-glow);
  transform: translateY(-3px);
}
.evidence-stat__number {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--color-accent-electric);
  margin-bottom: var(--space-sm);
  display: block;
}
.evidence-stat__label {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.82);
  line-height: 1.5;
}
.evidence-stat__source {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255,255,255,0.42);
  margin-top: var(--space-sm);
  display: block;
  letter-spacing: 0.05em;
}
.evidence-stat__source a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  transition: color var(--duration), border-color var(--duration);
}
.evidence-stat__source a:hover {
  color: rgba(255,255,255,0.75);
  border-bottom-color: rgba(255,255,255,0.45);
}
.evidence__quote cite a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  transition: color var(--duration), border-color var(--duration);
}
.evidence__quote cite a:hover {
  color: rgba(255,255,255,0.75);
  border-bottom-color: rgba(255,255,255,0.5);
}

.evidence__quote {
  max-width: 740px;
  margin: 0 auto;
  text-align: center;
  padding: var(--space-2xl);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.03);
}
.evidence__quote p {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  font-style: italic;
}
.evidence__quote cite {
  display: block;
  margin-top: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-style: normal;
  color: rgba(255,255,255,0.35);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ══════════════════════════════════════════════════════════════════
   COMPARISON TABLE
   ══════════════════════════════════════════════════════════════════ */
.comparison {
  background: var(--color-bg-tinted);
}
.comparison__table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-md);
}
table.comp-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  font-size: var(--text-sm);
  min-width: 600px;
}
.comp-table th {
  padding: var(--space-lg) var(--space-xl);
  font-weight: 700;
  font-size: var(--text-sm);
  text-align: left;
  border-bottom: 2px solid var(--color-border);
  background: var(--color-bg-tinted);
  color: var(--color-text);
}
.comp-table th:first-child { color: var(--color-text-muted); font-weight: 600; }
.comp-table th.comp-table__highlight {
  background: var(--color-primary);
  color: #fff;
  position: relative;
}
.comp-table th.comp-table__highlight::after {
  content: '★ Our pick';
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-top: 2px;
}
.comp-table td {
  padding: var(--space-md) var(--space-xl);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  vertical-align: middle;
}
.comp-table tr:last-child td { border-bottom: none; }
.comp-table td.comp-table__feature {
  font-weight: 600;
  color: var(--color-text);
  font-size: var(--text-sm);
}
.comp-table td.comp-table__highlight {
  background: rgba(42,125,127,0.05);
  font-weight: 600;
  color: var(--color-primary-dark);
}
.comp-icon--yes { color: var(--color-primary); font-size: 1.1em; }
.comp-icon--no  { color: #c0cccc; }
.comp-icon--partial { color: #e8a020; }

/* ══════════════════════════════════════════════════════════════════
   DARK CTA STRIP (before footer)
   ══════════════════════════════════════════════════════════════════ */
.cta-strip {
  background: var(--color-bg-dark);
  padding: var(--space-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(42,125,127,0.10) 0%, transparent 70%);
  pointer-events: none;
}
.cta-strip__inner {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
}
.cta-strip .eyebrow { color: var(--color-primary-light); margin-bottom: var(--space-md); display: block; }
.cta-strip h2 { color: #fff; margin-bottom: var(--space-lg); }
.cta-strip p  { color: rgba(255,255,255,0.65); margin-bottom: var(--space-2xl); }
.cta-strip__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
}
.btn--light {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.25);
}
.btn--light:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.5);
}

/* ══════════════════════════════════════════════════════════════════
   FEATURE CARD — techy accent line
   ══════════════════════════════════════════════════════════════════ */
.feature-card {
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary-light), transparent);
  opacity: 0;
  transition: opacity var(--duration) var(--ease);
}
.feature-card:hover::before { opacity: 1; }

/* ══════════════════════════════════════════════════════════════════
   SCROLL ANIMATIONS
   ══════════════════════════════════════════════════════════════════ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s var(--ease-out), transform 0.55s var(--ease-out);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — TABLET (≤ 900px)
   ══════════════════════════════════════════════════════════════════ */
@media (max-width: 900px) {
  :root { --space-5xl: 5rem; --space-4xl: 4rem; }

  .nav__links  { display: none; }
  .nav__actions .btn { display: none; }
  .nav__actions .nav__lang { display: none; }
  .nav__hamburger { display: flex; }

  .hero__content { max-width: 100%; padding-top: calc(var(--nav-height) + var(--space-3xl)); padding-bottom: var(--space-4xl); }

  .what-is__grid { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .what-is__visual { order: -1; }

  .steps {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
  }
  .step__connector {
    width: 2px;
    height: 32px;
    margin-top: 0;
  }
  .step__connector::after {
    right: auto;
    bottom: -5px;
    top: auto;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--color-border);
    border-left-color: transparent;
  }

  .features__grid    { grid-template-columns: 1fr 1fr; }
  .use-cases__grid   { grid-template-columns: 1fr; }
  .use-case-card--featured { transform: none; }

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

  .contact__grid     { grid-template-columns: 1fr; gap: var(--space-2xl); }

  .footer__top       { grid-template-columns: 1fr; gap: var(--space-2xl); }
  .footer__links     { grid-template-columns: repeat(3, 1fr); }

  .award-banner__inner { flex-direction: column; text-align: center; }
}

/* ══════════════════════════════════════════════════════════════════
   RESPONSIVE — MOBILE (≤ 600px)
   ══════════════════════════════════════════════════════════════════ */
@media (max-width: 600px) {
  :root {
    --space-5xl: 4rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
  }

  .container { padding: 0 var(--space-lg); }

  .hero__ctas { flex-direction: column; }
  .hero__ctas .btn { width: 100%; text-align: center; justify-content: center; }

  .features__grid  { grid-template-columns: 1fr; }
  .footer__links   { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }

  .screenshot-item { width: clamp(260px, 85vw, 400px); }

  .footer__bottom { flex-direction: column; align-items: flex-start; }

  .hero__meta { gap: var(--space-md); }
}