/* Shared theme tokens, schemes, preloader, controls */

html {
  --font: "DM Sans", sans-serif;
  --display: "Syne", sans-serif;
  --radius-btn: 7px;
  --radius: 18px;
  --accent: #d97706;
  --accent-2: #f59e0b;
  --danger: #ef4444;
  --success: #16a34a;
  color-scheme: light;
}

/* Light (default) */
html[data-theme="light"],
html:not([data-theme]) {
  --bg: #f6f3ee;
  --bg-2: #ffffff;
  --bg-3: #efeae2;
  --text: #1a1f1c;
  --muted: #5f6b63;
  --line: rgba(26, 31, 28, 0.12);
  --header-bg: rgba(246, 243, 238, 0.82);
  --sidebar: #ffffff;
  --panel: #ffffff;
  --input-bg: #f3eee7;
  --shadow: 0 18px 50px rgba(26, 31, 28, 0.08);
  --preloader-bg: #f6f3ee;
  --glow: color-mix(in srgb, var(--accent) 22%, transparent);
  --footer-bg: linear-gradient(180deg, rgba(255,255,255,0.55), rgba(255,255,255,0.28));
  --footer-border: rgba(255, 255, 255, 0.55);
  --footer-glow: color-mix(in srgb, var(--accent) 12%, transparent);
  color-scheme: light;
}

/* Dark / night */
html[data-theme="dark"] {
  --bg: #0f1412;
  --bg-2: #171e1a;
  --bg-3: #1f2923;
  --text: #f3efe6;
  --muted: #a8b0a8;
  --line: rgba(243, 239, 230, 0.12);
  --header-bg: rgba(15, 20, 18, 0.78);
  --sidebar: #0c100e;
  --panel: #171d19;
  --input-bg: #121815;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --preloader-bg: #0f1412;
  --glow: color-mix(in srgb, var(--accent) 28%, transparent);
  --footer-bg: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  --footer-border: rgba(255, 255, 255, 0.12);
  --footer-glow: color-mix(in srgb, var(--accent) 18%, transparent);
  color-scheme: dark;
}

/* ---------- Advanced Preloader ---------- */
.site-preloader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--preloader-bg) 35%, transparent);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  transition: opacity 0.55s ease, visibility 0.55s ease, transform 0.55s ease;
}

.site-preloader.is-done {
  opacity: 0;
  visibility: hidden;
  transform: scale(1.02);
  pointer-events: none;
}

.preloader-inner {
  width: min(320px, calc(100vw - 2.5rem));
  text-align: center;
}

.preloader-orbit {
  position: relative;
  width: 118px;
  height: 118px;
  margin: 0 auto 1.35rem;
}

.preloader-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid color-mix(in srgb, var(--accent) 25%, transparent);
  border-top-color: var(--accent);
  animation: spin 1.1s linear infinite;
}

.preloader-ring.delay {
  inset: 12px;
  border-top-color: var(--accent-2);
  animation-duration: 1.7s;
  animation-direction: reverse;
}

.preloader-core {
  position: absolute;
  inset: 28px;
  border-radius: 50%;
  background:
    linear-gradient(145deg, color-mix(in srgb, var(--accent) 35%, transparent), transparent 60%),
    var(--bg-2);
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.preloader-core::before {
  content: "";
  position: absolute;
  width: 140%;
  height: 40%;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 45%, white), transparent);
  transform: translateX(-120%) rotate(25deg);
  animation: sheen 1.8s ease-in-out infinite;
}

.preloader-mark {
  position: relative;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
  color: var(--text);
}

.preloader-brand {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: -0.03em;
  margin: 0 0 0.35rem;
  color: var(--text);
}

.preloader-status {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1rem;
  min-height: 1.3em;
}

.preloader-bar {
  height: 4px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}

.preloader-bar > span {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 55%, transparent);
  transition: width 0.25s ease;
}

.preloader-pct {
  margin-top: 0.55rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes sheen {
  0%, 20% { transform: translateX(-120%) rotate(25deg); }
  55%, 100% { transform: translateX(120%) rotate(25deg); }
}

body.is-loading {
  overflow: hidden;
}

/* ---------- Theme controls ---------- */
.theme-controls {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.theme-btn {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--text);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: 0.2s ease;
  padding: 0;
}

.theme-btn:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.theme-btn svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.theme-btn .icon-moon { display: none; }
html[data-theme="dark"] .theme-btn .icon-sun { display: none; }
html[data-theme="dark"] .theme-btn .icon-moon { display: block; }