:root {
  --acc-h: 0;
  --acc-s: 0%;
  --acc-l: 100%;
  --acc-ink: #05070d;
  --bg-h: 222;
  --bg-s: 85%;

  --accent-color: hsl(var(--acc-h) var(--acc-s) var(--acc-l));
  --accent-hi: hsl(var(--acc-h) var(--acc-s) min(92%, calc(var(--acc-l) + 14%)));
  --accent-lo: hsl(var(--acc-h) var(--acc-s) max(12%, calc(var(--acc-l) - 18%)));
  --accent-soft: hsl(var(--acc-h) var(--acc-s) var(--acc-l) / 0.16);
  --accent-line: hsl(var(--acc-h) var(--acc-s) var(--acc-l) / 0.38);
  --accent-glow: hsl(var(--acc-h) var(--acc-s) var(--acc-l) / 0.28);
  --accent: linear-gradient(135deg, var(--accent-hi), var(--accent-lo));

  --bg: #000000;
  --surface: rgba(14, 16, 22, 0.66);
  --surface-raised: rgba(255, 255, 255, 0.045);
  --surface-hover: rgba(255, 255, 255, 0.085);
  --line: rgba(255, 255, 255, 0.11);
  --line-strong: rgba(255, 255, 255, 0.24);

  --text: #ffffff;
  --text-dim: rgba(255, 255, 255, 0.62);
  --text-faint: rgba(255, 255, 255, 0.4);

  --sky: var(--accent-color);
  --teal: var(--accent-hi);
  --violet: var(--accent-lo);
  --danger: #ff6b6b;

  --radius: 0px;
  --radius-sm: 0px;
  --radius-lg: 0px;
  --radius-pill: 0px;

  --rail-inset: 12px;
  --rail-w: 56px;
  --rail-w-open: 216px;
  --rail: 80px;
  --rail-open: 240px;
  --gap: 16px;

  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --shadow: 0 18px 60px rgba(0, 0, 0, 0.6);
}

html[data-shape="rounded"] {
  --radius: 14px;
  --radius-sm: 9px;
  --radius-lg: 18px;
  --radius-pill: 12px;
}
html[data-shape="pill"] {
  --radius: 24px;
  --radius-sm: 999px;
  --radius-lg: 28px;
  --radius-pill: 999px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

* {
  scrollbar-width: thin;
  scrollbar-color: #313139 #0c0c0f;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #0c0c0f; }
::-webkit-scrollbar-thumb { background: #313139; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #43434f; }
::-webkit-scrollbar-corner { background: #0c0c0f; }
::-webkit-scrollbar-button { display: none; width: 0; height: 0; }

[hidden] { display: none !important; }
.hidden { display: none !important; }

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  top: -12vh;
  left: -10vw;
  right: -10vw;
  height: 68vh;
  z-index: -2;
  pointer-events: none;
  transform: rotate(-7deg);
  transform-origin: 75% 0;
  background:
    radial-gradient(46vw 17vh at 60% 46%, hsl(var(--bg-h) var(--bg-s) 58% / 0.62), transparent 72%),
    radial-gradient(26vw 12vh at 85% 33%, hsl(calc(var(--bg-h) + 160) 72% 58% / 0.5), transparent 74%),
    radial-gradient(30vw 12vh at 38% 56%, hsl(var(--bg-h) var(--bg-s) 52% / 0.34), transparent 76%);
  filter: blur(52px) saturate(125%);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 34%, transparent 96%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 34%, transparent 96%);
}

html.no-bg-grad body::before { display: none; }

#aurora {
  position: fixed;
  top: -16vh;
  left: 0;
  right: 0;
  height: 88vh;
  z-index: -2;
  pointer-events: none;
  opacity: 0.72;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, #000 42%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, #000 42%, transparent 100%);
}
#aurora canvas { display: block; width: 100%; height: 100%; }

html.has-aurora body::before { display: none; }
html.no-bg-grad #aurora { display: none; }

@media (prefers-reduced-motion: reduce) {
  #aurora { display: none; }
  html.has-aurora body::before { display: block; }
}

a { color: inherit; }

::selection { background: var(--accent-soft); color: var(--text); }

:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.ol-stage {
  margin-left: var(--rail);
  padding: 28px clamp(16px, 3vw, 32px) 96px;
  transition: margin-left 0.18s ease;
}
body.rail-open .ol-stage { margin-left: var(--rail-open); }

.ol-sidebar {
  position: fixed;
  inset: var(--rail-inset) auto var(--rail-inset) var(--rail-inset);
  z-index: 100;
  width: var(--rail-w);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  transition: width 0.18s ease;
}
body.rail-open .ol-sidebar { width: var(--rail-w-open); }

.ol-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px;
  background: rgba(8, 10, 15, 0.5);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  overflow: hidden;
}

.ol-rail { flex: 1; min-height: 0; }

.ol-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 6px 4px 10px;
  margin-bottom: 2px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: none;
  font: inherit;
  text-decoration: none;
  color: var(--text);
  cursor: pointer;
  overflow: hidden;
}
.ol-brand-logo {
  width: 100%;
  max-width: 150px;
  height: auto;
  object-fit: contain;
  display: block;
}
.ol-brand-name {
  display: none;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
body.rail-open .ol-brand-name { display: block; }

.ol-link,
.ol-toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 0 12px;
  border: 0;
  border-radius: var(--radius-sm);
  background: none;
  color: var(--text-dim);
  font: inherit;
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background 0.14s ease, color 0.14s ease;
}
.ol-link svg,
.ol-toggle svg { width: 20px; height: 20px; flex-shrink: 0; }
.ol-link:hover,
.ol-toggle:hover { background: var(--surface-hover); color: var(--text); }

.ol-link.active {
  background: var(--accent);
  color: var(--acc-ink);
  font-weight: 600;
  box-shadow: 0 6px 20px var(--accent-glow);
}
.ol-link.active:hover { background: var(--accent); filter: brightness(1.06); }

.ol-panic { color: var(--text-faint); }
.ol-panic:hover { background: rgba(255, 255, 255, 0.1); color: var(--text); }

.ol-label {
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  transition: opacity 0.16s ease, max-width 0.18s ease;
}
body.rail-open .ol-label { opacity: 1; max-width: 150px; }

.ol-spacer { flex: 1; min-height: 12px; }

.ol-toggle svg {
  transform: rotate(180deg);
  transition: transform 0.18s ease;
}
body.rail-open .ol-toggle svg { transform: rotate(0deg); }

.ol-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}
.ol-h1 { font-size: clamp(28px, 4.4vw, 44px); line-height: 1.04; letter-spacing: -0.03em; }
.ol-h2 { font-size: 18px; letter-spacing: -0.01em; }
.ol-sub { color: var(--text-dim); font-size: 14px; line-height: 1.6; }

.ol-box {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}

.ol-box-head {
  padding: 16px 18px 12px;
  border-bottom: 1px solid var(--line);
}
.ol-box-eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.ol-box-title {
  margin-top: 6px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.ol-box-desc {
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-dim);
}
.ol-box-body { padding: 6px 18px 14px; }

.ol-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.ol-row:last-child { border-bottom: 0; }
.ol-row-main { min-width: 0; flex: 1; }
.ol-row-label { font-size: 14px; font-weight: 500; }
.ol-row-desc {
  margin-top: 3px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--text-faint);
}
.ol-row-control { flex-shrink: 0; display: flex; align-items: center; gap: 8px; }

.ol-row-stack {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.ol-row-stack:last-child { border-bottom: 0; }
.ol-row-stack .ol-row-control { margin-top: 10px; display: block; }

@media (max-width: 560px) {
  .ol-row { flex-direction: column; align-items: stretch; }
  .ol-row-control { width: 100%; }
  .ol-row-control > select,
  .ol-row-control > .ol-input { width: 100%; }
}

.ol-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-raised);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.14s ease, border-color 0.14s ease, transform 0.14s ease;
}
.ol-btn:hover { background: var(--surface-hover); border-color: var(--line-strong); }
.ol-btn:active { transform: translateY(1px); }
.ol-btn-primary {
  background: var(--accent);
  border-color: transparent;
  color: var(--acc-ink);
  font-weight: 600;
  box-shadow: 0 8px 24px var(--accent-glow);
}
.ol-btn-primary:hover { filter: brightness(1.08); background: var(--accent); }
.ol-btn-danger { color: #ffb4b4; border-color: rgba(255, 107, 107, 0.4); background: rgba(255, 107, 107, 0.08); }
.ol-btn-danger:hover { background: rgba(255, 107, 107, 0.16); border-color: rgba(255, 107, 107, 0.62); }
.ol-btn-sm { min-height: 30px; padding: 0 10px; font-size: 12px; }

.ol-input {
  width: 100%;
  min-height: 42px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.32);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.14s ease, background 0.14s ease, box-shadow 0.14s ease;
}
.ol-input::placeholder { color: var(--text-faint); }
.ol-input:focus {
  border-color: var(--accent-line);
  background: rgba(0, 0, 0, 0.5);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.ol-select {
  min-width: 190px;
  min-height: 40px;
  padding: 0 34px 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background-color: rgba(0, 0, 0, 0.42);
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-opacity='.65' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  color: var(--text);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 0.14s ease, box-shadow 0.14s ease;
}
.ol-select:focus { border-color: var(--accent-line); box-shadow: 0 0 0 3px var(--accent-soft); }
.ol-select option { background: #0b0d14; color: var(--text); }

.ol-switch {
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  width: 46px;
  height: 26px;
}
.ol-switch input { position: absolute; opacity: 0; width: 0; height: 0; }
.ol-switch-track {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: background 0.16s ease, border-color 0.16s ease;
}
.ol-switch-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.16s ease;
}
.ol-switch input:checked + .ol-switch-track {
  background: var(--accent);
  border-color: transparent;
}
.ol-switch input:checked + .ol-switch-track::after { transform: translateX(20px); }
.ol-switch input:focus-visible + .ol-switch-track { box-shadow: 0 0 0 3px var(--accent-soft); }

.ol-legal {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  display: flex;
  gap: 8px;
}
.ol-legal a {
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: rgba(8, 10, 15, 0.78);
  backdrop-filter: blur(14px);
  color: var(--text-dim);
  font-size: 12px;
  text-decoration: none;
  transition: color 0.14s ease, border-color 0.14s ease;
}
.ol-legal a:hover { color: var(--text); border-color: var(--accent-line); }

.ol-page-head { margin-bottom: 22px; }
.ol-page-title {
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.ol-page-sub { margin-top: 6px; color: var(--text-dim); font-size: 14px; }

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  z-index: 3000;
  transform: translate(-50%, 20px);
  padding: 11px 18px;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-pill);
  background: rgba(8, 10, 15, 0.94);
  backdrop-filter: blur(14px);
  color: var(--text);
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 820px) {
  .ol-sidebar {
    inset: auto var(--rail-inset) var(--rail-inset) var(--rail-inset);
    width: auto !important;
    flex-direction: row;
    align-items: center;
    gap: 4px;
    padding: 6px;
    background: rgba(5, 6, 10, 0.86);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 34px rgba(0, 0, 0, 0.5);
  }
  .ol-group { display: contents; }
  .ol-spacer, .ol-toggle, .ol-brand { display: none; }
  .ol-link { flex: 1; justify-content: center; padding: 0; min-height: 46px; }
  .ol-label { display: none; }
  .ol-stage, body.rail-open .ol-stage { margin-left: 0; padding-bottom: 92px; }
  .ol-legal { bottom: 84px; right: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}