:root {
  --ds-bg: #0b0f1a;
  --ds-surface: #141a2a;
  --ds-card: #1c2438;
  --ds-text: #f7f7fb;
  --ds-muted: #b2b8c7;
  --ds-accent: #00c896;
  --ds-accent-light: #33d4a8;
  --ds-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  --ds-radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--ds-bg);
  color: var(--ds-text);
  min-height: 100vh;
  padding-bottom: 86px;
}

.ds-page,
.ds-ai-page {
  height: 100vh;
  overflow: hidden;
}

.ds-hero-page {
  height: 100vh;
  overflow: hidden;
}

.ds-main {
  padding: 20px 18px 32px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.ds-card {
  background: var(--ds-card);
  border-radius: var(--ds-radius);
  padding: 18px;
  box-shadow: var(--ds-shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ds-title {
  font-size: 22px;
  margin: 0;
}

.ds-subtitle {
  font-size: 16px;
  margin: 0;
  color: var(--ds-muted);
}

img, video {
  max-width: 100%;
}

a {
  color: var(--ds-accent);
  text-decoration: none;
}

button {
  cursor: pointer;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--ds-surface);
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 3px;
}

/* ========================================
   LIGHT MODE — Base overrides
   ======================================== */
@media (prefers-color-scheme: light) {
  :root {
    --ds-bg: #f5f7fa;
    --ds-surface: #ffffff;
    --ds-card: #ffffff;
    --ds-text: #1a2232;
    --ds-muted: #6b7280;
    --ds-accent: #059669;
    --ds-accent-light: #10b981;
    --ds-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
  }

  body {
    background: var(--ds-bg);
    color: var(--ds-text);
  }

  .ds-card {
    background: var(--ds-card);
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: var(--ds-shadow);
  }

  a {
    color: var(--ds-accent);
  }

  ::-webkit-scrollbar-track {
    background: #f0f0f0;
  }

  ::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.18);
  }
}