@import url("/static/css/design-system.css");

.demo-page {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(34, 211, 238, 0.08), transparent),
    radial-gradient(ellipse 50% 35% at 95% 5%, rgba(239, 68, 68, 0.09), transparent),
    var(--bg-base);
  color: var(--text-primary);
}

.hidden {
  display: none !important;
}

.demo-header,
.demo-hero,
.demo-shell,
.demo-steps {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.demo-header {
  min-height: 84px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.demo-header nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.demo-nav-link {
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.875rem;
}

.demo-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 390px;
  gap: var(--space-10);
  padding: var(--space-16) 0 var(--space-10);
  align-items: center;
}

.demo-kicker {
  margin: 0 0 var(--space-3);
  color: var(--brand-cyan);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.demo-hero h1 {
  max-width: 780px;
  margin: 0 0 var(--space-4);
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.07em;
}

.demo-lead {
  max-width: 720px;
  color: var(--text-secondary);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.demo-hero-card,
.demo-shell,
.demo-analysis-panel,
.guest-upload-card,
.guest-rules,
.demo-progress,
.demo-step-grid {
  border: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(16px);
}

.demo-hero-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  background:
    linear-gradient(145deg, rgba(239, 68, 68, 0.12), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.015));
  box-shadow: var(--shadow-lg), var(--shadow-glow-red);
}

.demo-hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.55), rgba(34, 211, 238, 0.18), transparent);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.demo-hero-card span {
  display: block;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.demo-hero-card strong {
  display: block;
  margin: var(--space-3) 0;
  font-size: 1.45rem;
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.demo-hero-card p {
  margin: 0;
  color: var(--text-secondary);
}

.demo-shell {
  border-radius: 28px;
  padding: var(--space-5);
}

.demo-tabs {
  display: inline-flex;
  gap: var(--space-2);
  padding: 6px;
  margin-bottom: var(--space-5);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.22);
}

.demo-tab {
  border: 0;
  border-radius: 999px;
  padding: 0.75rem 1rem;
  color: var(--text-secondary);
  background: transparent;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.demo-tab.active {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-red), #b91c1c);
  box-shadow: var(--shadow-sm), var(--shadow-glow-red);
}

.demo-panel {
  display: none;
}

.demo-panel.active {
  display: block;
}

.demo-grid,
.guest-upload-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(270px, 0.55fr);
  gap: var(--space-8);
  align-items: start;
}

.demo-video-card {
  display: flex;
  flex-direction: column;
}

.demo-video-frame {
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-2xl);
  background: #000;
  box-shadow: var(--shadow-lg), var(--shadow-glow-cyan);
}

.demo-video-frame video {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
}

.btn-demo-main {
  width: 100%;
  margin-top: var(--space-4);
  min-height: 52px;
}

.demo-muted {
  color: var(--text-muted);
  font-size: 0.875rem;
}

.demo-analysis-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-self: start;
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  background:
    linear-gradient(145deg, rgba(34, 211, 238, 0.065), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
}

.analysis-panel-head {
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
}

.analysis-panel-badge {
  display: inline-flex;
  width: fit-content;
  margin-bottom: var(--space-4);
  padding: 0.32rem 0.6rem;
  border: 1px solid rgba(34, 211, 238, 0.2);
  border-radius: 999px;
  background: rgba(34, 211, 238, 0.065);
  color: var(--brand-cyan);
  font-size: 0.7rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.analysis-panel-head h2 {
  margin: 0 0 var(--space-2);
  font-size: clamp(1.35rem, 1.8vw, 1.7rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.analysis-panel-head p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.58;
}

.analysis-feature-list {
  display: grid;
  gap: var(--space-4);
}

.analysis-feature {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}

.analysis-feature-icon,
.step-icon {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.035);
  color: var(--brand-cyan);
  border: 1px solid rgba(255, 255, 255, 0.09);
  box-shadow: 0 0 14px rgba(34, 211, 238, 0.035);
}

.analysis-feature-icon svg,
.step-icon svg {
  width: 16px;
  height: 16px;
}

.analysis-feature-icon svg [stroke],
.step-icon svg [stroke] {
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.analysis-feature h3 {
  margin: 0 0 0.18rem;
  font-size: 0.92rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
}

.analysis-feature p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.48;
}

.guest-upload-card,
.guest-rules {
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
}

.guest-upload-card {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-style: dashed;
}

.guest-upload-card.dragover {
  border-color: rgba(34, 211, 238, 0.45);
  box-shadow: var(--shadow-glow-cyan);
}

.guest-rules ul {
  margin: var(--space-4) 0;
  padding-left: var(--space-5);
  color: var(--text-secondary);
}

.guest-file-summary {
  margin-top: var(--space-4);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.demo-progress {
  margin-top: var(--space-5);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
}

.demo-progress-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.demo-progress .progress-wrap {
  height: 12px;
}

.demo-progress #demo-progress-meta {
  color: var(--text-muted);
  margin-bottom: 0;
}

.demo-steps {
  padding: var(--space-16) 0 var(--space-20);
}

.demo-steps header {
  max-width: 680px;
  margin-bottom: var(--space-8);
}

.demo-steps h2 {
  margin: 0;
  max-width: 620px;
  font-size: clamp(1.65rem, 3vw, 2.45rem);
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.demo-step-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-5);
  padding: var(--space-6);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  align-items: start;
}

.demo-step-grid::before {
  content: "";
  position: absolute;
  left: calc(var(--space-6) + 44px);
  right: calc(var(--space-6) + 44px);
  top: calc(var(--space-6) + 17px);
  height: 1px;
  background: linear-gradient(90deg, rgba(34, 211, 238, 0.34), rgba(239, 68, 68, 0.28));
  opacity: 0.55;
}

.process-step {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.process-step-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.step-number {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 26px;
  margin: 0;
  border-radius: 999px;
  background: rgba(239, 68, 68, 0.14);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.24);
  font-size: 0.75rem;
  font-weight: 800;
}

.step-icon {
  flex-shrink: 0;
}

.demo-step-grid h3 {
  margin: 0 0 var(--space-1);
  font-size: 0.98rem;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.demo-step-grid p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.45;
}

@media (max-width: 900px) {
  .demo-hero,
  .demo-grid,
  .guest-upload-grid {
    grid-template-columns: 1fr;
  }

  .demo-step-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .demo-step-grid::before {
    display: none;
  }

  .demo-analysis-panel {
    max-width: 520px;
  }
}

@media (max-width: 600px) {
  .demo-header,
  .demo-hero,
  .demo-shell,
  .demo-steps {
    width: min(100% - 28px, 1160px);
  }

  .demo-header nav {
    gap: var(--space-2);
  }

  .demo-tabs {
    width: 100%;
  }

  .demo-tab {
    flex: 1;
    padding-inline: 0.7rem;
  }

  .demo-step-grid {
    grid-template-columns: 1fr;
    gap: 0;
    padding: var(--space-5);
  }

  .process-step {
    padding: var(--space-4) 0;
    border-bottom: 1px solid var(--border-subtle);
  }

  .process-step:first-child {
    padding-top: 0;
  }

  .process-step:last-child {
    padding-bottom: 0;
    border-bottom: 0;
  }
}