/* AudienceXAI — light / dark tokens (mode set via data-theme on <html>) */
:root,
html[data-theme="light"] {
  color-scheme: light;
  --font-sans: "Space Grotesk", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", ui-monospace, monospace;
  --bg: #f4f4f2;
  --bg-elevated: #ffffff;
  --bg-muted: #ebeae6;
  --bg-plan-popular: #f0efeb;
  --fg: #0a0a0a;
  --fg-secondary: #2a2a2a;
  --fg-muted: #4a4a4a;
  --fg-faint: #6e6e6e;
  --border: #dddcd6;
  --border-strong: #c4c2b8;
  --header-border: #dddcd6;
  --cta-bg: #0a0a0a;
  --cta-fg: #ffffff;
  --cta-hover: #222222;
  --btn-bg: #efeee9;
  --btn-fg: #0a0a0a;
  --btn-border: #d4d2c8;
  --btn-hover: #e4e2da;
  --shadow: 0 24px 48px rgba(20, 18, 12, 0.08);
  --ring: #1a1a1a;
  --danger-bg: #fde8e8;
  --danger-fg: #b42318;
  --success: #15803d;
  --banner-bg: #f5f2e6;
  --banner-border: #e0d9c0;
  --banner-fg: #3d3a2e;
  --input-bg: #ffffff;
  --input-border: #d4d2c8;
  --input-fg: #0a0a0a;
  --card-shadow: 0 10px 40px rgba(20, 18, 12, 0.08);
  --logo-ring: rgba(10, 10, 10, 0.12);
  --logo-glow: 0 2px 8px rgba(20, 18, 12, 0.12);
  --accent: #6e6e6e;
  --accent-soft: rgba(20, 20, 20, 0.06);
  --accent-glow: rgba(20, 20, 20, 0.12);
  --card-tint: #ffffff;
  --atmosphere: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0, 0, 0, 0.04), transparent 55%);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --font-sans: "Space Grotesk", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "SF Mono", ui-monospace, monospace;
  --bg: #000000;
  --bg-elevated: #0d0d0d;
  --bg-muted: #141414;
  --bg-plan-popular: #111111;
  --fg: #ffffff;
  --fg-secondary: #d0d0d0;
  --fg-muted: #a3a3a3;
  --fg-faint: #7a7a7a;
  --border: #1c1c1c;
  --border-strong: #3a3a3a;
  --header-border: #161616;
  --cta-bg: #ffffff;
  --cta-fg: #000000;
  --cta-hover: #e5e5e5;
  --btn-bg: #141414;
  --btn-fg: #ffffff;
  --btn-border: #2a2a2a;
  --btn-hover: #1c1c1c;
  --shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
  --ring: #1a1a1a;
  --danger-bg: #2a1515;
  --danger-fg: #f87171;
  --success: #4ade80;
  --banner-bg: #1a1a12;
  --banner-border: #333333;
  --banner-fg: #cccccc;
  --input-bg: #111111;
  --input-border: #2a2a2a;
  --input-fg: #ffffff;
  --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  --logo-ring: rgba(255, 255, 255, 0.22);
  --logo-glow: 0 2px 12px rgba(255, 255, 255, 0.08);
  --accent: #c8c8c8;
  --accent-soft: rgba(255, 255, 255, 0.06);
  --accent-glow: rgba(255, 255, 255, 0.12);
  --card-tint: #111111;
  --atmosphere: radial-gradient(ellipse 90% 55% at 50% -8%, rgba(255, 255, 255, 0.05), transparent 58%);
}

body {
  font-family: var(--font-sans);
  font-feature-settings: "ss01" 1, "kern" 1;
  letter-spacing: -0.01em;
}

/* Compact icon theme control (sun / moon / system) — sits far right */
.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 1px;
  margin-left: 0;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elevated);
  vertical-align: middle;
  flex-shrink: 0;
}

.theme-switch button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--fg-muted);
  font-family: var(--font-mono);
  width: 28px;
  height: 28px;
  padding: 0;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 0;
}

.theme-switch button svg {
  width: 14px;
  height: 14px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-switch button:hover {
  color: var(--fg);
}

.theme-switch button[aria-pressed="true"] {
  background: var(--bg-muted);
  color: var(--fg);
}

.theme-switch.theme-corner {
  margin-left: 0;
}

/* Shared logo mark — original brand asset */
.logo-mark {
  display: block;
  object-fit: cover;
  border-radius: 10px;
}

@media (max-width: 900px) {
  .theme-switch button {
    width: 26px;
    height: 26px;
  }
  .theme-switch button svg {
    width: 13px;
    height: 13px;
  }
}

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