/* VIMDRIVE Liquid Glass — resets, typography, layout primitives, .glass. */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html, body { height: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px; line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden; /* shell owns scrolling */
}

/* --- Atmosphere: near-black, never flat --- */
body::before {
  /* 56px grid texture, masked to the top */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 60%);
          mask-image: linear-gradient(180deg, rgba(0,0,0,0.5), transparent 60%);
  opacity: 0.6;
}
body::after {
  /* soft radial glows behind hero areas */
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(900px 500px at 78% -8%, var(--accent-dim), transparent 60%),
    radial-gradient(700px 500px at 8% 108%, var(--warm-dim), transparent 60%);
}
#app { position: relative; z-index: 1; height: 100%; }

/* --- Typography --- */
h1, h2, h3, .serif { font-family: var(--font-serif); font-weight: 400; line-height: 1.1; letter-spacing: -0.01em; }
h1 { font-size: clamp(28px, 3vw, 40px); }
h2 { font-size: clamp(22px, 2.2vw, 30px); }
h3 { font-size: 20px; }
.eyebrow, .mono { font-family: var(--font-mono); }
.eyebrow {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.28em;
  color: var(--text-3);
}
.gradient-word {
  background: linear-gradient(100deg, var(--accent-2), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { color: var(--text); }
.muted { color: var(--text-3); }
.dim { color: var(--text-4); }

/* --- The .glass primitive (verbatim) --- */
.glass {
  border-radius: var(--r-lg);
  border: 1px solid var(--glass-stroke);
  background: linear-gradient(135deg, var(--glass-tint-strong) 0%, var(--glass-tint) 100%);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  box-shadow: inset 0 1px 0 var(--glass-spec-top), inset 0 -1px 0 var(--glass-spec-bot),
              0 24px 60px -24px rgba(0,0,0,0.65);
}
.glass:hover { border-color: var(--glass-stroke-hover);
  background: linear-gradient(135deg, var(--glass-tint-hover) 0%, var(--glass-tint-strong) 100%); }
.glass-flat { /* glass look, no hover lift */
  border-radius: var(--r-md);
  border: 1px solid var(--glass-stroke);
  background: linear-gradient(135deg, var(--glass-tint-strong) 0%, var(--glass-tint) 100%);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
}

/* --- App shell layout --- */
.shell { display: grid; grid-template-columns: 264px 1fr; grid-template-rows: minmax(0, 1fr); height: 100vh; }
.sidebar {
  display: flex; flex-direction: column; gap: var(--s-5);
  padding: var(--s-5) var(--s-4); border-right: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  overflow-y: auto;
  min-height: 0;
}
.workspace { display: flex; flex-direction: column; min-width: 0; min-height: 0; height: 100%; }
.topbar {
  display: flex; align-items: center; gap: var(--s-4);
  padding: var(--s-4) var(--s-6); border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.025), transparent);
}
.main { flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; padding: var(--s-6); scrollbar-gutter: stable; }
.page { max-width: 1480px; margin: 0 auto; animation: rise 0.32s ease both; }

/* --- Bento grid --- */
.bento { display: grid; grid-template-columns: repeat(12, 1fr); gap: var(--s-4); }
.col-3 { grid-column: span 3; } .col-4 { grid-column: span 4; } .col-5 { grid-column: span 5; }
.col-6 { grid-column: span 6; } .col-7 { grid-column: span 7; } .col-8 { grid-column: span 8; }
.col-9 { grid-column: span 9; } .col-12 { grid-column: span 12; }
.row { display: flex; gap: var(--s-3); align-items: center; }
.row.wrap { flex-wrap: wrap; }
.between { justify-content: space-between; }
.stack { display: flex; flex-direction: column; gap: var(--s-3); }
.grow { flex: 1; min-width: 0; }

/* --- Scrollbars --- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.10); border-radius: 999px; border: 2px solid transparent; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); background-clip: padding-box; }

/* --- Focus rings (keyboard-first) --- */
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 2px; border-radius: var(--r-sm); }

/* --- Motion --- */
@keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse-warm { 0%,100% { box-shadow: 0 0 0 0 var(--warm-glow); } 50% { box-shadow: 0 0 0 6px transparent; } }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }
/* The `hidden` attribute must always win — author rules such as .auth-gate{display:flex} or
   .nav-item{display:flex} otherwise override the UA's [hidden]{display:none} (2026-09-10 hotfix:
   the sign-in gate stayed on screen after a successful sign-in). */
[hidden] { display: none !important; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

@media (max-width: 1100px) {
  .shell { grid-template-columns: 72px 1fr; }
  .sidebar .nav-label, .sidebar .brand-sub, .sidebar .brand-logo, .sidebar .nav-section-label { display: none; }
  .sidebar .brand-mini { display: block; }
  .sidebar-foot { display: none; }
  .col-2 { grid-column: span 4; }
  .col-3, .col-4 { grid-column: span 6; }
  .col-5, .col-6, .col-7, .col-8, .col-9 { grid-column: span 12; }
}
@media (max-width: 680px) {
  .col-2, .col-3, .col-4 { grid-column: span 12; }
}