/* ============================================================
   D-Band — Data Release Manager
   Professional Dark Tech Theme
   ============================================================ */

/* ── Custom Properties ──────────────────────────────────────── */
:root {
  /* Colors */
  --bg:           #080d18;
  --bg-2:         #0d1526;
  --bg-card:      #111e30;
  --bg-card-h:    #162540;
  --border:       #1a2d45;
  --border-l:     #223450;

  --blue:         #3b82f6;
  --cyan:         #06b6d4;
  --blue-dim:     rgba(59,130,246,.15);
  --cyan-dim:     rgba(6,182,212,.12);
  --grad:         linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  --grad-soft:    linear-gradient(135deg, rgba(59,130,246,.08) 0%, rgba(6,182,212,.06) 100%);

  --text:         #e8f0fe;
  --text-2:       #8ba3c0;
  --text-3:       #4d6a87;
  --success:      #10b981;
  --warning:      #f59e0b;

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

  /* Spacing */
  --container:    1200px;
  --section-gap:  120px;

  /* Radius */
  --r-sm:  6px;
  --r-md:  12px;
  --r-lg:  20px;
  --r-xl:  28px;

  /* Transitions */
  --ease:  cubic-bezier(.4,0,.2,1);
  --t-fast: 160ms;
  --t-med:  280ms;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
::selection { background: rgba(59,130,246,.35); }

/* ── Utilities ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.mono { font-family: var(--mono); }

.section { padding: var(--section-gap) 0; }

.section__label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 12px;
}

.section__header {
  max-width: 640px;
  margin: 0 auto 64px;
  text-align: center;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.7;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--r-md);
  font-size: .925rem;
  font-weight: 600;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
  white-space: nowrap;
}

.btn--primary {
  background: var(--blue);
  color: #fff;
}
.btn--primary:hover { background: #2563eb; }
.btn--primary:active { background: #1d4ed8; }

.btn--ghost {
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border-l);
}
.btn--ghost:hover {
  border-color: var(--blue);
  color: var(--text);
  background: var(--blue-dim);
}

.btn--full { width: 100%; justify-content: center; }

/* ── Badge ──────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.25);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 28px;
}

.badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .5; transform: scale(.75); }
}

/* ── Animations ─────────────────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp .7s var(--ease) forwards;
}
.fade-in--d1 { animation-delay: .1s; }
.fade-in--d2 { animation-delay: .2s; }
.fade-in--d3 { animation-delay: .3s; }
.fade-in--d4 { animation-delay: .4s; }
.fade-in--d5 { animation-delay: .55s; }

@keyframes fadeUp {
  to { opacity: 1; transform: none; }
}

.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ── Header / Nav ───────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0;
  transition: background var(--t-med) var(--ease), box-shadow var(--t-med) var(--ease);
}
.header.scrolled {
  background: rgba(8,13,24,.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
  gap: 32px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav__logo-img {
  height: 60px;
  max-width: 200px;
  width: auto;
  object-fit: contain;
}
.nav__logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav__link {
  padding: 8px 14px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav__link:hover { color: var(--text); background: rgba(255,255,255,.05); }
.nav__link.active { color: var(--blue); }

.nav__link--cta {
  background: var(--grad);
  color: #fff !important;
  padding: 9px 20px;
  border-radius: var(--r-md);
  font-weight: 600;
  box-shadow: 0 0 18px rgba(59,130,246,.3);
}
.nav__link--cta:hover {
  background: rgba(255,255,255,.05) !important;
  box-shadow: 0 4px 24px rgba(59,130,246,.4);
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-l);
}
.nav__hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: all var(--t-med) var(--ease);
}
.nav__hamburger[aria-expanded="true"] span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__hamburger[aria-expanded="true"] span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ── Hero ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 160px 0 80px;
  overflow: hidden;
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 30%, transparent 100%);
}


.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  margin-bottom: 64px;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--text-2);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: 36px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 40px;
}

.stat { text-align: center; }
.stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1;
  margin-bottom: 6px;
}
.stat__label {
  font-size: .78rem;
  color: var(--text-3);
  line-height: 1.4;
}
.stat__divider {
  width: 1px;
  height: 44px;
  background: var(--border-l);
  flex-shrink: 0;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* Video frame */
.video-frame {
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-l);
  background: var(--bg-card);
}
.video-frame__video {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

/* Hero terminal */
.hero__terminal {
  max-width: 780px;
  margin: 0 auto;
}

/* ── Terminal Component ──────────────────────────────────────── */
.terminal {
  background: #0b1322;
  border: 1px solid var(--border-l);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-family: var(--mono);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: #0d1a2d;
  border-bottom: 1px solid var(--border);
}
.terminal__dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.terminal__dot--red    { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green  { background: #28c840; }
.terminal__title {
  margin-left: 8px;
  font-size: .78rem;
  color: var(--text-3);
  font-family: var(--font);
}

.terminal__body {
  padding: 20px 24px;
  font-size: .85rem;
  line-height: 1.8;
}
.terminal__body p { white-space: pre; }

.terminal__prompt { color: var(--cyan); margin-right: 8px; }

.terminal__out           { color: var(--text-2); }
.terminal__out--success  { color: var(--success); }
.terminal__out--muted    { color: var(--text-3); }

.terminal__tag {
  display: inline-block;
  padding: 1px 8px;
  background: rgba(59,130,246,.2);
  color: var(--blue);
  border-radius: 4px;
  font-size: .78rem;
  margin-left: 4px;
}

.terminal__cursor {
  display: inline-block;
  color: var(--cyan);
  animation: blink 1.1s step-end infinite;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Features ───────────────────────────────────────────────── */
.features { background: var(--bg-2); }

.features__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 32px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t-med) var(--ease), transform var(--t-med) var(--ease), background var(--t-med) var(--ease);
}
.feature-card:hover {
  border-color: var(--border-l);
  background: var(--bg-card-h);
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  padding: 10px;
  background: var(--grad-soft);
  border: 1px solid rgba(59,130,246,.2);
  border-radius: var(--r-md);
  color: var(--blue);
  margin-bottom: 20px;
}
.feature-card__icon svg { width: 100%; height: 100%; }

.feature-card__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-card__text {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ── Install snippet ────────────────────────────────────────── */
.install-snippet {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-l);
  border-radius: var(--r-md);
  margin-top: 8px;
}
.install-snippet code {
  font-size: .875rem;
  color: var(--cyan);
}
.copy-btn {
  display: flex;
  align-items: center;
  padding: 4px;
  color: var(--text-3);
  border-radius: 4px;
  transition: color var(--t-fast) var(--ease);
}
.copy-btn:hover { color: var(--text); }
.copy-btn svg { width: 15px; height: 15px; }

/* ── Platform tags ──────────────────────────────────────────── */
.product__subsection {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 24px 0 10px;
}

.platform-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}
.platform-tag {
  padding: 4px 12px;
  background: rgba(59,130,246,.12);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 500;
  color: var(--blue);
}
.platform-tag--dim {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-3);
}

.product__checklist {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.product__checklist li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.5;
}
.tag-inline {
  flex-shrink: 0;
  padding: 1px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-l);
  border-radius: 4px;
  font-size: .8rem;
  color: var(--cyan);
}

/* ── AI Section ─────────────────────────────────────────────── */
.ai-section { background: var(--bg-2); }

.ai-modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 48px;
}

.ai-mode {
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t-med) var(--ease);
}
.ai-mode:hover { border-color: var(--border-l); }
.ai-mode--active {
  border-color: rgba(59,130,246,.35);
  background: var(--grad-soft);
}

.ai-mode__header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 14px;
}
.ai-mode__num {
  font-size: .75rem;
  font-weight: 700;
  color: var(--cyan);
  background: rgba(6,182,212,.1);
  border: 1px solid rgba(6,182,212,.2);
  border-radius: 6px;
  padding: 4px 8px;
  flex-shrink: 0;
  margin-top: 2px;
  font-family: var(--mono);
}
.ai-mode__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 2px;
}
.ai-mode__tag {
  font-size: .78rem;
  color: var(--text-3);
}
.ai-mode__text {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 14px;
}
.ai-mode__code {
  padding: 10px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
}
.ai-mode__code code {
  font-size: .8rem;
  color: var(--cyan);
}

.ai-mode__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ai-mode__tools span {
  padding: 3px 10px;
  background: var(--bg);
  border: 1px solid var(--border-l);
  border-radius: 4px;
  font-size: .75rem;
  font-family: var(--mono);
  color: var(--text-2);
}

.ai-mode__skills {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.skill-tag {
  font-size: .82rem;
  color: var(--text-2);
}
.skill-tag code {
  font-family: var(--mono);
  color: var(--blue);
  font-size: .8rem;
}

/* Comparison table */
.ai-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.ai-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
.ai-table th {
  padding: 14px 20px;
  background: var(--bg-card);
  text-align: left;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-3);
  border-bottom: 1px solid var(--border);
}
.ai-table td {
  padding: 13px 20px;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
}
.ai-table tr:last-child td { border-bottom: none; }
.ai-table tr:hover td { background: rgba(255,255,255,.02); }
.ai-table td:first-child { color: var(--text); }

/* ── About ──────────────────────────────────────────────────── */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about__content .section__title { margin-bottom: 24px; text-align: left; }
.about__content .section__label { display: block; }

.about__text {
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 16px;
  font-size: .975rem;
}

.about__team {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 36px;
}

.team-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color var(--t-med) var(--ease), background var(--t-med) var(--ease);
}
.team-card:hover {
  border-color: var(--blue);
  background: var(--blue-dim);
}

.team-card__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.team-card__name {
  font-weight: 600;
  font-size: .9rem;
  color: var(--text);
}
.team-card__role {
  font-size: .8rem;
  color: var(--text-3);
}
.team-card__icon {
  width: 18px;
  height: 18px;
  color: var(--text-3);
  margin-left: auto;
  flex-shrink: 0;
  transition: color var(--t-fast) var(--ease);
}
.team-card:hover .team-card__icon { color: var(--blue); }

.about__pillars {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.pillar {
  position: relative;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  overflow: hidden;
}
.pillar::before {
  content: '';
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--grad);
}
.pillar__num {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .1em;
  margin-bottom: 8px;
  display: block;
}
.pillar__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.pillar__text {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ── Product ────────────────────────────────────────────────── */
.product { background: var(--bg-2); }

.product__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-bottom: 80px;
}

.product__pill {
  display: inline-block;
  padding: 4px 12px;
  background: var(--grad-soft);
  border: 1px solid rgba(59,130,246,.2);
  border-radius: 6px;
  font-size: .8rem;
  color: var(--blue);
  margin-bottom: 20px;
}

.product__logo {
  height: 40px;
  width: auto;
  margin-bottom: 20px;
  object-fit: contain;
}

.product__desc {
  font-size: .975rem;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 28px;
}

.product__checklist {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.product__checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  color: var(--text-2);
}
.product__checklist svg {
  width: 16px;
  height: 16px;
  color: var(--success);
  flex-shrink: 0;
}

.product__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.product__terminal-wrap .terminal { font-size: .82rem; }

/* Use cases */
.usecases__heading {
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
}

.usecases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.usecase {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  text-align: center;
  transition: border-color var(--t-med) var(--ease), transform var(--t-med) var(--ease);
}
.usecase:hover {
  border-color: var(--border-l);
  transform: translateY(-3px);
}

.usecase__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  padding: 11px;
  background: var(--grad-soft);
  border: 1px solid rgba(59,130,246,.2);
  border-radius: var(--r-md);
  color: var(--cyan);
}
.usecase__icon svg { width: 100%; height: 100%; }

.usecase__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.usecase__text {
  font-size: .88rem;
  color: var(--text-2);
  line-height: 1.65;
}

/* ── Watch / YouTube ────────────────────────────────────────── */
.watch { background: var(--bg); }

.watch__card {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: center;
}

.watch__thumb {
  position: relative;
  display: block;
  width: 100%;
  cursor: pointer;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--border-l);
  background: #000;
  aspect-ratio: 16/9;
}
.watch__thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform var(--t-med) var(--ease), opacity var(--t-med) var(--ease);
}
.watch__thumb:hover .watch__thumb-img {
  transform: scale(1.02);
  opacity: .85;
}

.watch__play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,.3);
  transition: background var(--t-fast) var(--ease);
}
.watch__thumb:hover .watch__play { background: rgba(0,0,0,.15); }
.watch__play svg {
  width: 68px;
  height: 68px;
  color: #fff;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.5));
  transition: transform var(--t-fast) var(--ease);
}
.watch__thumb:hover .watch__play svg { transform: scale(1.08); }

.watch__meta {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.watch__channel {
  display: flex;
  align-items: center;
  gap: 12px;
}
.watch__yt-icon { width: 36px; height: 36px; color: #ff0000; flex-shrink: 0; }
.watch__yt-icon svg { width: 100%; height: 100%; }

.watch__channel-name { font-weight: 600; font-size: .95rem; }
.watch__channel-sub  { font-size: .8rem; color: var(--text-3); }

.watch__desc {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.65;
}

.watch__btns { display: flex; flex-direction: column; gap: 10px; }

@media (max-width: 768px) {
  .watch__card { grid-template-columns: 1fr; }
  .watch__btns { flex-direction: row; }
}

/* ── Video lightbox modal ────────────────────────────────────── */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.video-modal[hidden] { display: none; }

.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.85);
  cursor: pointer;
}

.video-modal__content {
  position: relative;
  width: 100%;
  max-width: 900px;
  z-index: 1;
}

.video-modal__close {
  position: absolute;
  top: -40px;
  right: 0;
  font-size: 1.8rem;
  line-height: 1;
  color: #fff;
  opacity: .7;
  padding: 4px 10px;
  transition: opacity var(--t-fast) var(--ease);
}
.video-modal__close:hover { opacity: 1; }

.video-modal__frame {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  background: #000;
  border-radius: var(--r-lg);
  overflow: hidden;
}
.video-modal__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* ── Announcements ──────────────────────────────────────────── */
.announcements__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.ann-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color var(--t-med) var(--ease);
}
.ann-card:hover { border-color: var(--border-l); }

.ann-card--featured {
  border-color: rgba(59,130,246,.3);
  background: linear-gradient(135deg, rgba(59,130,246,.07) 0%, rgba(6,182,212,.05) 100%);
}
.ann-card--featured:hover { border-color: var(--blue); }

.ann-card__tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.ann-card__tag--new {
  background: rgba(16,185,129,.15);
  color: var(--success);
  border: 1px solid rgba(16,185,129,.3);
}
.ann-card__tag--soon {
  background: rgba(245,158,11,.1);
  color: var(--warning);
  border: 1px solid rgba(245,158,11,.25);
}

.ann-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.3;
}
.ann-card__text {
  font-size: .9rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 20px;
}
.ann-card__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--blue);
  transition: gap var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
.ann-card__link svg { width: 14px; height: 14px; }
.ann-card__link:hover { gap: 10px; color: var(--cyan); }

/* ── Demo Form ──────────────────────────────────────────────── */
.demo { background: var(--bg-2); }

.demo__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  padding: 64px;
  background: var(--bg-card);
  border: 1px solid var(--border-l);
  border-radius: var(--r-xl);
}

.demo__content .section__title { margin-bottom: 16px; text-align: left; }
.demo__content .section__label { display: block; }

.demo__subtitle {
  font-size: .975rem;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 28px;
}

.demo__benefits {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.demo__benefits li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  color: var(--text-2);
}
.demo__benefits svg {
  width: 16px;
  height: 16px;
  color: var(--success);
  flex-shrink: 0;
}

.demo__contact-line {
  font-size: .875rem;
  color: var(--text-3);
}
.demo__email {
  color: var(--blue);
  font-weight: 500;
  transition: color var(--t-fast) var(--ease);
}
.demo__email:hover { color: var(--cyan); }

/* Form elements */
.demo__form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-2);
}
.required { color: var(--blue); }

.form-input {
  padding: 12px 16px;
  background: var(--bg);
  border: 1px solid var(--border-l);
  border-radius: var(--r-md);
  color: var(--text);
  font: inherit;
  font-size: .925rem;
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  outline: none;
}
.form-input::placeholder { color: var(--text-3); }
.form-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}
.form-input.error { border-color: #ef4444; }

.form-textarea { resize: vertical; min-height: 110px; }

.form-error {
  font-size: .8rem;
  color: #ef4444;
  min-height: 1rem;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.3);
  border-radius: var(--r-md);
  color: var(--success);
  font-size: .9rem;
  font-weight: 500;
}
.form-success svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ── Footer ─────────────────────────────────────────────────── */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.footer__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer__tagline {
  font-size: .875rem;
  color: var(--text-3);
  margin-bottom: 24px;
  line-height: 1.5;
}

.footer__social {
  display: flex;
  gap: 10px;
}
.footer__social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--text-3);
  transition: all var(--t-fast) var(--ease);
}
.footer__social a svg { width: 16px; height: 16px; }
.footer__social a:hover {
  border-color: var(--blue);
  color: var(--blue);
  background: var(--blue-dim);
}

.footer__nav-title {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 16px;
}
.footer__nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer__nav a {
  font-size: .875rem;
  color: var(--text-2);
  transition: color var(--t-fast) var(--ease);
}
.footer__nav a:hover { color: var(--text); }

.footer__email {
  display: inline-block;
  font-size: .875rem;
  color: var(--blue);
  margin-bottom: 12px;
  transition: color var(--t-fast) var(--ease);
}
.footer__email:hover { color: var(--cyan); }

.footer__upcoming {
  font-size: .8rem;
  color: var(--text-3);
  line-height: 1.5;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: .82rem;
  color: var(--text-3);
}
.footer__a11y {
  color: var(--text-3);
  transition: color var(--t-fast) var(--ease);
}
.footer__a11y:hover { color: var(--text-2); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --section-gap: 90px; }

  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__media { max-width: 560px; margin: 0 auto; }

  .about__grid { grid-template-columns: 1fr; gap: 48px; }

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

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

  .announcements__grid { grid-template-columns: 1fr 1fr; }
  .ann-card--featured { grid-column: 1 / -1; }

  .demo__inner { grid-template-columns: 1fr; gap: 40px; padding: 40px; }

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

@media (max-width: 768px) {
  :root { --section-gap: 70px; }

  /* Mobile nav */
  .nav__links {
    display: flex;
    position: fixed;
    top: 84px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(8,13,24,.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    gap: 4px;
    transform: translateY(-110%);
    transition: transform var(--t-med) var(--ease);
    visibility: hidden;
    z-index: 1001;
  }
  .nav__links.open {
    transform: translateY(0);
    visibility: visible;
  }
  .nav__link { padding: 12px 16px; }
  .nav__link--cta { text-align: center; }
  .nav__hamburger { display: flex; }
  .nav__logo-img { height: 36px; max-width: 120px; }

  .hero { padding: 120px 0 60px; }
  .hero__title { font-size: 2.1rem; }
  .hero__stats { gap: 16px; }
  .stat__value { font-size: 1.5rem; }

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

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

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

  .ai-modes { grid-template-columns: 1fr; }

  .demo__inner { padding: 28px 20px; }

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

  .terminal__body { font-size: .78rem; padding: 16px; }
  .terminal__body p { white-space: pre-wrap; overflow-wrap: break-word; }
}

@media (max-width: 480px) {
  .hero__stats { flex-direction: column; align-items: flex-start; }
  .stat__divider { display: none; }
  .hero__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .product__actions { flex-direction: column; }
}