/* ==========================================================================
   TiLy — Theme System
   3 modes: default (light), crimson (dark red + matrix rain), moon (dark
   navy + slow drifting stars). Themed via CSS variables on [data-theme] set
   on <html>, so the existing Tailwind classes below just get remapped to
   variables instead of needing every page rewritten per theme.
   ========================================================================== */

/* ---------- 1. Theme tokens ---------- */

:root,
[data-theme="default"] {
  --bg-primary: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f9fafb;
  --surface-alt-2: #f3f4f6;

  --text-primary: #1f2937;
  --text-secondary: #374151;
  --text-muted: #6b7280;
  --text-faint: #9ca3af;

  --border: #d1d5db;
  --border-light: #e5e7eb;
  --border-lighter: #f3f4f6;

  --input-bg: #ffffff;
  --input-text: #374151;

  --link: #2563eb;
  --link-hover: #1e40af;

  --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);

  --error-bg: #fee2e2;
  --error-border: #f87171;
  --error-text: #b91c1c;

  --indigo: #4f46e5;
  --indigo-hover: #3730a3;
  --green: #16a34a;
  --green-hover: #15803d;
  --red: #dc2626;
  --red-hover: #b91c1c;
  --blue: #3b82f6;
  --blue-hover: #1d4ed8;

  --copy-btn-bg: #3b82f6;
  --copy-btn-bg-hover: #1d4ed8;

  --open-btn-bg: var(--green);
  --open-btn-bg-hover: var(--green-hover);

  --focus-ring: rgba(102, 126, 234, 0.5);
  --scrollbar-thumb: #cbd5e1;
  --selection-bg: #c7d2fe;

  color-scheme: light;
}

[data-theme="crimson"] {
  --bg-primary: #0a0002;
  --surface: #150307;
  --surface-alt: #1d060b;
  --surface-alt-2: #260910;

  --text-primary: #ffe4e6;
  --text-secondary: #ffb4bb;
  --text-muted: #d3818b;
  --text-faint: #8a4a54;

  --border: #4a1017;
  --border-light: #34090f;
  --border-lighter: #2a070c;

  --input-bg: #1d060b;
  --input-text: #ffe4e6;

  --link: #ff5b6b;
  --link-hover: #ff96a1;

  --accent-gradient: linear-gradient(135deg, #7a0d1c 0%, #ff1f3d 100%);
  --shadow: 0 0 0 1px rgba(255, 30, 60, 0.15), 0 10px 30px rgba(255, 10, 40, 0.25);

  --error-bg: #2a060b;
  --error-border: #7a0d1c;
  --error-text: #ff96a1;

  --indigo: #ff5b6b;
  --indigo-hover: #ff96a1;
  --green: #ff1f3d;
  --green-hover: #7a0d1c;
  --red: #ff3355;
  --red-hover: #ff7789;
  --blue: #ff5b6b;
  --blue-hover: #ff96a1;

  --copy-btn-bg: #7a0d1c;
  --copy-btn-bg-hover: #a31226;

  --focus-ring: rgba(255, 30, 60, 0.45);
  --scrollbar-thumb: #4a1017;
  --selection-bg: #5c0f1a;

  color-scheme: dark;
}

[data-theme="moon"] {
  --bg-primary: #05060d;
  --surface: #0b0e1a;
  --surface-alt: #10142400;
  --surface-alt: #10142a;
  --surface-alt-2: #161b31;

  --text-primary: #e6e9f5;
  --text-secondary: #b9c0dd;
  --text-muted: #7c85ac;
  --text-faint: #565f83;

  --border: #232a4a;
  --border-light: #1a1f38;
  --border-lighter: #141830;

  --input-bg: #10142a;
  --input-text: #e6e9f5;

  --link: #8ab4ff;
  --link-hover: #b9d0ff;

  --accent-gradient: linear-gradient(135deg, #2a3a8f 0%, #5865f2 100%);
  --shadow: 0 0 0 1px rgba(88, 101, 242, 0.15), 0 10px 30px rgba(10, 14, 30, 0.6);

  --error-bg: #1c0f16;
  --error-border: #5a2438;
  --error-text: #ff9db3;

  --indigo: #8ab4ff;
  --indigo-hover: #b9d0ff;
  --green: #5865f2;
  --green-hover: #2a3a8f;
  --red: #ff8fa3;
  --red-hover: #ffb8c6;
  --blue: #8ab4ff;
  --blue-hover: #b9d0ff;

  --copy-btn-bg: #3b4bab;
  --copy-btn-bg-hover: #4f5fd6;

  --focus-ring: rgba(88, 101, 242, 0.5);
  --scrollbar-thumb: #232a4a;
  --selection-bg: #232a4a;

  color-scheme: dark;
}

/* ---------- 2. Base page remap ---------- */

html,
body {
  background-color: var(--bg-primary);
}

body {
  color: var(--text-primary);
  transition: background-color 0.35s ease, color 0.35s ease;
  position: relative;
}

/* content sits above the fixed fx canvas */
body > *:not(#theme-fx-canvas):not(.theme-switcher) {
  position: relative;
  z-index: 1;
}

::selection {
  background: var(--selection-bg);
}

::-webkit-scrollbar-thumb {
  background-color: var(--scrollbar-thumb);
}

.gradient-bg {
  background: var(--accent-gradient) !important;
}

/* ---------- 3. Surface / text / border class remap ---------- */

.bg-white { background-color: var(--surface) !important; }
.bg-gray-50 { background-color: var(--surface-alt) !important; }
.bg-gray-100 { background-color: var(--surface-alt-2) !important; }

.text-gray-800 { color: var(--text-primary) !important; }
.text-gray-900 { color: var(--text-primary) !important; }
.text-gray-700 { color: var(--text-secondary) !important; }
.text-gray-500 { color: var(--text-muted) !important; }
.text-gray-400 { color: var(--text-faint) !important; }

.border-gray-300 { border-color: var(--border) !important; }
.border-gray-200 { border-color: var(--border-light) !important; }
.border-gray-100 { border-color: var(--border-lighter) !important; }

.divide-gray-200 > :not([hidden]) ~ :not([hidden]) {
  border-color: var(--border-light) !important;
}

.shadow-md { box-shadow: var(--shadow) !important; }

/* inputs */
input[type="text"],
input[type="url"],
input[type="password"] {
  background-color: var(--input-bg) !important;
  color: var(--input-text) !important;
  border-color: var(--border) !important;
}

input::placeholder { color: var(--text-faint) !important; opacity: 1; }

input:focus {
  box-shadow: 0 0 0 3px var(--focus-ring) !important;
  outline: none !important;
}

/* short-code prefix pill on the dashboard form */
#shortCode ~ *,
span.bg-gray-50 { color: var(--text-muted) !important; }

/* error box */
.bg-red-100 { background-color: var(--error-bg) !important; }
.border-red-400 { border-color: var(--error-border) !important; }
.text-red-700 { color: var(--error-text) !important; }

/* links / actions */
.text-blue-600 { color: var(--link) !important; }
.hover\:text-blue-800:hover { color: var(--link-hover) !important; }
.hover\:text-blue-900:hover { color: var(--link-hover) !important; }

.text-indigo-600 { color: var(--indigo) !important; }
.hover\:text-indigo-600:hover { color: var(--indigo) !important; }
.hover\:text-indigo-900:hover { color: var(--indigo-hover) !important; }

.text-green-600 { color: var(--green) !important; }
.hover\:text-green-900:hover { color: var(--green-hover) !important; }

.text-red-600 { color: var(--red) !important; }
.hover\:text-red-600:hover { color: var(--red) !important; }
.hover\:text-red-900:hover { color: var(--red-hover) !important; }

.hover\:text-gray-700:hover { color: var(--text-secondary) !important; }

/* primary "Copy" button on the result card */
.bg-blue-500 { background-color: var(--copy-btn-bg) !important; }
.hover\:bg-blue-700:hover { background-color: var(--copy-btn-bg-hover) !important; }

/* "Open" button on the result card */
.tily-open-btn {
  background-color: var(--open-btn-bg);
  color: #ffffff;
  border: none;
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.tily-open-btn:hover {
  background-color: var(--open-btn-bg-hover);
}

/* ---------- 4. Theme switcher widget ---------- */

.theme-switcher {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 50;
  display: flex;
  gap: 4px;
  padding: 4px;
  background-color: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.theme-switch-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  opacity: 0.55;
  transition: opacity 0.2s ease, background-color 0.2s ease, transform 0.15s ease;
}

.theme-switch-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.theme-switch-btn.is-active {
  opacity: 1;
  background-color: var(--surface-alt);
  box-shadow: inset 0 0 0 1px var(--border);
}

@media (max-width: 480px) {
  .theme-switcher {
    top: 8px;
    right: 8px;
    padding: 3px;
  }
  .theme-switch-btn {
    width: 30px;
    height: 30px;
    font-size: 14px;
  }
}

/* fx canvas: always behind content, ignore pointer events */
#theme-fx-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

@media (prefers-reduced-motion: reduce) {
  #theme-fx-canvas { display: none !important; }
}