/* ValleHTML Studio — front-end styles */
:root {
  --vhs-paper: #FBFBF9;
  --vhs-ink: #16181D;
  --vhs-ink-soft: #51545C;
  --vhs-accent: #2E5BFF;
  --vhs-hairline: #E2E2DC;
  --vhs-surface: #FFFFFF;
  --vhs-radius: 12px;
}
[data-theme="dark"] {
  --vhs-paper: #0E0F13;
  --vhs-ink: #F4F4F1;
  --vhs-ink-soft: #9A9DA6;
  --vhs-accent: #6E8BFF;
  --vhs-hairline: #262932;
  --vhs-surface: #15171C;
}

/* ---- document block ---- */
.vhs-doc { margin: 2rem 0; border: 1px solid var(--vhs-hairline); border-radius: var(--vhs-radius); overflow: hidden; background: var(--vhs-surface); }
.vhs-bar { display: flex; align-items: center; gap: .5rem; padding: .55rem .8rem; border-bottom: 1px solid var(--vhs-hairline); background: var(--vhs-paper); font-family: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, monospace; font-size: .72rem; }
.vhs-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--vhs-hairline); display: inline-block; }
.vhs-bar__label { color: var(--vhs-ink-soft); letter-spacing: .04em; text-transform: uppercase; }
.vhs-bar__spacer { flex: 1; }
.vhs-frame { width: 100%; border: 0; display: block; min-height: 200px; background: #fff; transition: height .15s ease; }

.vhs-srcbtn, .vhs-copy {
  font-family: ui-monospace, "JetBrains Mono", monospace; font-size: .72rem;
  background: transparent; border: 1px solid var(--vhs-hairline); color: var(--vhs-ink-soft);
  padding: .25rem .55rem; border-radius: 6px; cursor: pointer; transition: all .15s;
}
.vhs-srcbtn:hover, .vhs-copy:hover { color: var(--vhs-accent); border-color: var(--vhs-accent); }
.vhs-rawlink { font-family: ui-monospace, monospace; font-size: .72rem; color: var(--vhs-ink-soft); text-decoration: none; margin-left: .25rem; }
.vhs-rawlink:hover { color: var(--vhs-accent); }

.vhs-source { position: relative; border-top: 1px solid var(--vhs-hairline); background: #1d1f24; }
.vhs-source pre { margin: 0; padding: 1rem 1.1rem; overflow: auto; max-height: 460px; }
.vhs-source code { font-family: ui-monospace, "JetBrains Mono", monospace; font-size: .8rem; line-height: 1.55; color: #e7e9ee; white-space: pre; }
.vhs-source .vhs-copy { position: absolute; top: .6rem; right: .6rem; background: rgba(255,255,255,.06); color: #cdd0d8; border-color: rgba(255,255,255,.16); }

/* ---- inline snippet ---- */
.vhs-inline { margin: 1.5rem 0; }
.vhs-inline__bar { display: flex; justify-content: flex-end; margin-bottom: .5rem; }
.vhs-render { }

/* ---- TOC ---- */
.vhs-toc { border-left: 2px solid var(--vhs-accent); padding: .4rem 0 .4rem 1rem; margin: 0 0 1rem; }
.vhs-doc .vhs-toc { margin: .9rem 1rem; }
.vhs-toc__title { font-family: ui-monospace, monospace; font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--vhs-ink-soft); margin: 0 0 .4rem; }
.vhs-toc ul { list-style: none; margin: 0; padding: 0; }
.vhs-toc li { margin: .15rem 0; }
.vhs-toc a { color: var(--vhs-ink-soft); text-decoration: none; font-size: .9rem; }
.vhs-toc a:hover { color: var(--vhs-accent); }
.vhs-toc__l3 { padding-left: 1rem; }

/* ---- reading progress ---- */
.vhs-progress { position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 9998; background: transparent; }
.vhs-progress span { display: block; height: 100%; width: 0; background: var(--vhs-accent); transition: width .08s linear; }

/* ---- command palette ---- */
.vhs-palette { position: fixed; inset: 0; z-index: 100000; background: rgba(10,11,15,.45); backdrop-filter: blur(3px); display: flex; align-items: flex-start; justify-content: center; padding-top: 14vh; }
.vhs-palette__box { width: min(620px, 92vw); background: var(--vhs-surface); border: 1px solid var(--vhs-hairline); border-radius: 14px; box-shadow: 0 24px 70px rgba(0,0,0,.35); overflow: hidden; }
.vhs-palette__input { width: 100%; box-sizing: border-box; border: 0; border-bottom: 1px solid var(--vhs-hairline); padding: 1.05rem 1.2rem; font-size: 1.05rem; background: transparent; color: var(--vhs-ink); outline: none; }
.vhs-palette__results { list-style: none; margin: 0; padding: .35rem; max-height: 52vh; overflow: auto; }
.vhs-palette__results li { display: flex; flex-direction: column; gap: .12rem; padding: .6rem .8rem; border-radius: 9px; cursor: pointer; }
.vhs-palette__results li[aria-selected="true"], .vhs-palette__results li:hover { background: color-mix(in srgb, var(--vhs-accent) 14%, transparent); }
.vhs-pal-t { color: var(--vhs-ink); font-weight: 600; font-size: .96rem; }
.vhs-pal-m { color: var(--vhs-ink-soft); font-family: ui-monospace, monospace; font-size: .72rem; }
.vhs-palette__hint { padding: .55rem .9rem; border-top: 1px solid var(--vhs-hairline); color: var(--vhs-ink-soft); font-size: .72rem; }
.vhs-palette__hint kbd { background: var(--vhs-paper); border: 1px solid var(--vhs-hairline); border-radius: 4px; padding: .05rem .35rem; font-family: ui-monospace, monospace; font-size: .7rem; }

@media (prefers-reduced-motion: reduce) { .vhs-frame, .vhs-progress span { transition: none; } }