/* ===================================================================
   CoffeeQuant unified theme
   - light "dojo" blue background
   - floating glass panels
   - scroll-spy nav pills
   - full-width responsive grid
   =================================================================== */

/* -------------------------------------------------
   0. Root tokens (colors, radii, spacing)
   ------------------------------------------------- */
:root {
  /* Text and accents */
  --fg: #0f172a;              /* slate-900 */
  --muted: #64748b;           /* slate-500 */
  --accent: #2563eb;          /* blue-600 */
  --accent-light: #60a5fa;    /* blue-400 */

  /* Background mood (dojo-ish blue paper) */
  --dojo-bg-light: #f4f8ff;   /* gentle cool */
  --dojo-bg-accent: #dfe9f9;  /* slightly deeper blue ring */

  /* Panel surfaces (cards, hero, nav dock) */
  --panel-bg: rgba(255,255,255,0.96);
  --panel-border: rgba(0,0,0,0.06);
  --panel-shadow: 0 16px 40px rgba(15,23,42,0.08);

  /* Lines / subtle borders */
  --line: rgba(0,0,0,0.06);

  /* Rounding / fonts */
  --radius: 12px;
  --font-sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Watermark tuning */
  --cq-bg-opacity-light: 0.03;
  --cq-bg-opacity-dark: 0.06;
  --cq-bg-blur: 1px;
  --cq-bg-scale: 1.0;
}

/* Dark mode fallback */
@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8edf5;
    --muted: #9aa3af;

    --dojo-bg-light: #0f172a;
    --dojo-bg-accent: #1e293b;

    --panel-bg: rgba(17,24,39,0.6);      /* slate-900 w alpha glass */
    --panel-border: rgba(255,255,255,0.08);
    --panel-shadow: 0 32px 60px rgba(0,0,0,0.8);

    --line: rgba(255,255,255,0.12);

    --accent: #38bdf8;
    --accent-light: #7dd3fc;
  }
}

/* -------------------------------------------------
   1. Global layout / base background
   ------------------------------------------------- */

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  line-height: 1.6;
  scroll-behavior: smooth;
  color: var(--fg);
}

/* page background is a calm cool radial gradient, not white */
body {
  background:
    radial-gradient(
      circle at 50% 20%,
      var(--dojo-bg-accent) 0%,
      var(--dojo-bg-light) 70%
    ),
    var(--dojo-bg-light);
  background-attachment: fixed;
}

/* math watermark layer behind everything */
html::before {
  content:"";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-position: center;
  background-repeat: no-repeat;
  background-size: calc(100% * var(--cq-bg-scale)) auto;
  background-image: url("../img/bg/cq-bg-light.svg");
  opacity: var(--cq-bg-opacity-light);
  filter: blur(var(--cq-bg-blur)) saturate(0.8) contrast(0.9);
}
@media (prefers-color-scheme: dark){
  html::before {
    background-image: url("../img/bg/cq-bg-dark.svg");
    opacity: var(--cq-bg-opacity-dark);
    filter: blur(2px) saturate(0.9) contrast(1);
  }
}

/* in case you ever want to disable bg for a page */
.no-bg html::before,
.no-bg::before {
  opacity: 0 !important;
}

/* -------------------------------------------------
   2. Shell + nav bar (top)
   ------------------------------------------------- */

.cq-shell {
  max-width: 2600px;
  margin: 0 auto;
  padding: 1rem 2rem 0;
}

/* nav bar floats as a translucent panel */
.cq-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .8rem;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: .6rem .8rem;
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(6px) saturate(1.1);
}

.cq-logo {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--fg);
  line-height: 1.2;
  padding-right: .8rem;
  border-right: 1px solid var(--line);
}
.cq-logo:hover { color: var(--accent); }

.cq-navlinks {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding-left: .8rem;
}

/* pill menu links */
.cq-navlinks a {
  --pill-fg:#1E3A8A;
  --pill-bg:#EEF2FF;
  --pill-bd:#C7D2FE;
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.4rem .7rem;
  border-radius:999px;
  border:1px solid var(--pill-bd);
  background:var(--pill-bg);
  color:var(--pill-fg);
  font-weight:600;
  letter-spacing:.01em;
  font-size:.9rem;
  line-height:1.2;
  text-decoration:none;
  transition: transform .12s ease,
              background-color .12s ease,
              border-color .12s ease,
              color .12s ease;
}
.cq-navlinks a:hover {
  background:#E0E7FF;
  border-color:#A5B4FC;
  transform: translateY(-1px);
  text-decoration:none;
}
.cq-navlinks a.is-active {
  background:#C7D2FE;
  border-color:#818CF8;
  color:#111827;
}
@media (prefers-color-scheme: dark){
  .cq-navlinks a{
    --pill-fg:#E5E7EB;
    --pill-bg:#1E293B;
    --pill-bd:#334155;
  }
  .cq-navlinks a:hover{
    background:#243447;
    border-color:#3B82F6;
  }
  .cq-navlinks a.is-active{
    background:#2A3750;
    border-color:#60A5FA;
    color:#fff;
  }
}

/* -------------------------------------------------
   3. Hero block
   ------------------------------------------------- */

.cq-hero {
  position: relative;
  width: 100%;
  margin: 1.5rem auto 2rem;
  border-radius: 36px;
  padding: 3rem 1rem 3.5rem;
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  color: var(--fg);
  overflow: hidden;
  backdrop-filter: blur(8px) saturate(1.15);
}

.cq-hero__bg {
  position:absolute;
  inset:0;
    background-color: #e9eef7;         /* fallback color */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: brightness(1.05) saturate(1.05);
}
.cq-hero__overlay {
  position:absolute;
  inset:0;
  background: radial-gradient(
    ellipse at 30% 30%,
    rgba(255,255,255,.6) 0%,
    rgba(255,255,255,.1) 60%,
    rgba(0,0,0,0) 80%
  );
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  pointer-events: none;
}


@media (prefers-color-scheme: dark){
  .cq-hero__overlay {
    background: radial-gradient(60% 60% at 50% 35%, rgba(15,23,42,.55), transparent 60%);
    opacity:.7;
  }
}

.cq-hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 3800px;
  margin: 0 auto;
}

.cq-hero h1 {
  font-size: 2rem;
  margin: 0 0 .6rem;
  color: var(--fg);
  line-height: 1.2;
}
.cq-hero p {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
  line-height: 1.4;
}

.cq-cta {
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:.6rem;
}

/* Steam animation (subtle lines in hero) */
.cq-steam {
  position:absolute;
  inset:0;
  z-index:1;
  pointer-events:none;
  opacity:.18;
}
.cq-steam svg{
  width:100%;
  height:100%;
}
.cq-steam path{
  fill:none;
  stroke:currentColor;
  stroke-width:1.5;
  stroke-linecap:round;
  opacity:.7;
}
@keyframes cq-drift {
  0%   { transform: translateY(6px);  opacity:.15; }
  50%  { transform: translateY(-4px); opacity:.3; }
  100% { transform: translateY(6px);  opacity:.15; }
}
.cq-steam path:nth-child(1){ animation: cq-drift 6s ease-in-out infinite; }
.cq-steam path:nth-child(2){ animation: cq-drift 7.5s ease-in-out infinite; animation-delay:.6s; }
.cq-steam path:nth-child(3){ animation: cq-drift 9s ease-in-out infinite;  animation-delay:1.2s; }

/* -------------------------------------------------
   4. Buttons
   ------------------------------------------------- */

.cq-btn,
.cq-btn-ghost {
  display:inline-block;
  padding:.6rem 1rem;
  border-radius:999px;
  font-weight:600;
  font-size:.9rem;
  line-height:1.2;
  text-decoration:none;
}

.cq-btn {
  background:var(--accent);
  color:#fff;
}
.cq-btn:hover {
  background:var(--accent-light);
  text-decoration:none;
}

.cq-btn-ghost {
  background: transparent;
  border:1px solid var(--line);
  color:var(--fg);
  backdrop-filter: blur(4px) saturate(1.05);
}
.cq-btn-ghost:hover {
  background:var(--panel-bg);
  text-decoration:none;
}

/* -------------------------------------------------
   5. Main content layout: sidebar + content
   ------------------------------------------------- */

.cq-main {
  display:grid;
  grid-template-columns: 220px 1fr;
  gap:2rem;
  max-width:1600px;
  width:100%;
  margin:0 auto;
  padding: 0 2rem 4rem;
  position:relative;
}

/* Left dock (sticky nav) */
.cq-dock {
  position:sticky;
  top:2rem;
  align-self:start;
  min-width:200px;
  max-width:240px;

  background: var(--panel-bg);
  border:1px solid var(--panel-border);
  border-radius:12px;
  padding:1rem;
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(6px) saturate(1.1);
}

.cq-dock h4 {
  margin: .2rem 0 .4rem;
  font-size: .8rem;
  font-weight:600;
  color: #64748B; /* slate-500 always visible enough */
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* dock links are mini-pills, stacked */
.cq-dock a {
  --dock-fg:#0F172A;
  --dock-bg:#F8FAFF;
  --dock-bd:#E5E7EB;
  display:block;
  width:100%;
  margin:.3rem 0;
  padding:.5rem .6rem;
  font-size:.9rem;
  line-height:1.2;
  font-weight:600;
  color:var(--dock-fg);
  text-decoration:none;
  border:1px solid var(--dock-bd);
  border-radius:10px;
  background:var(--dock-bg);
  transition: background-color .12s ease,
              border-color .12s ease,
              color .12s ease,
              transform .12s ease;
}
.cq-dock a:hover {
  background:#EEF2FF;
  border-color:#C7D2FE;
  transform: translateY(-1px);
}
.cq-dock a.is-active {
  background:#C7D2FE;
  border-color:#818CF8;
  color:#111827;
}
@media (prefers-color-scheme: dark){
  .cq-dock a{
    --dock-fg:#E5E7EB;
    --dock-bg:#162033;
    --dock-bd:#243043;
    color:var(--dock-fg);
  }
  .cq-dock a:hover{
    background:#1B2942;
    border-color:#2F3E55;
  }
  .cq-dock a.is-active{
    background:#22324D;
    border-color:#3B82F6;
    color:#fff;
  }
}

/* Right-hand content column */
.cq-main > div {
  max-width:100%;
  padding-right:1rem;
  padding-left:1rem;
}

/* Section spacing */
.cq-section {
  margin: 2.5rem 0 4rem;
}

/* Section header with label */
.cq-section-head {
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  margin-bottom:.8rem;
}
.cq-section-head h2 {
  margin:0;
  font-size:1.2rem;
  line-height:1.3;
  font-weight:600;
  color:var(--fg);
  letter-spacing:.01em;
}

.cq-pill {
  display:inline-block;
  background:#EEF2FF;
  color:#1E3A8A;
  border:1px solid #C7D2FE;
  font-size:.8rem;
  line-height:1.2;
  font-weight:600;
  padding:.15rem .6rem;
  border-radius:999px;
}
@media (prefers-color-scheme: dark){
  .cq-pill{
    background:#1E293B;
    color:#E5E7EB;
    border:1px solid #334155;
  }
}

/* -------------------------------------------------
   6. Strips (the colorful header banners above each section)
   ------------------------------------------------- */

.cq-strip {
  height:120px;
  border-radius:12px;
  margin:.6rem 0 .8rem;
  border:1px solid var(--panel-border);
  box-shadow:0 12px 32px rgba(15,23,42,0.12);
  background-size:200% 200%;
  animation:cqStripFlow 6s ease-in-out infinite;
  backdrop-filter: blur(4px) saturate(1.2);
}
@keyframes cqStripFlow {
  0%   { background-position:0% 0%; }
  50%  { background-position:100% 100%; }
  100% { background-position:0% 0%; }
}

.cq-strip[data-strip] {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  height: 400px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

/* Optional: subtle translucent overlay for readability */
.cq-strip[data-strip]::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(255,255,255,.5), rgba(255,255,255,.2));
  pointer-events: none;
}

/* Section-specific images */
.cq-strip[data-strip="daily"]  { background-image: url("../img/strips/strip-daily.webp"); }
.cq-strip[data-strip="labs"]   { background-image: url("../img/strips/strip-labs.webp"); }
.cq-strip[data-strip="tools"]  { background-image: url("../img/strips/strip-tools.webp"); }
.cq-strip[data-strip="notes"]  { background-image: url("../img/strips/strip-notes.webp"); }
.cq-strip[data-strip="curios"] { background-image: url("../img/strips/strip-curios.webp"); }


@media (prefers-color-scheme: light){
  .cq-strip[data-strip="daily"]  { background:linear-gradient(135deg, rgba(12,74,110,.5), rgba(30,58,138,.3)); }
  .cq-strip[data-strip="labs"]   { background:linear-gradient(135deg, rgba(88,28,135,.5), rgba(49,46,129,.3)); }
  .cq-strip[data-strip="tools"]  { background:linear-gradient(135deg, rgba(113,63,18,.5), rgba(30,58,138,.3)); }
  .cq-strip[data-strip="notes"]  { background:linear-gradient(135deg, rgba(67,56,202,.5), rgba(49,46,129,.3)); }
  .cq-strip[data-strip="curios"] { background:linear-gradient(135deg, rgba(6,95,70,.5), rgba(30,58,138,.3)); }
}

/* -------------------------------------------------
   7. Cards, tiles, lists
   ------------------------------------------------- */

.cq-card,
.cq-daily,
.cq-tile,
.article,
.term,
.cq-list > div,
.cq-list--compact > div {
  background: var(--panel-bg);
  border:1px solid var(--panel-border);
  border-radius:12px;
  box-shadow: var(--panel-shadow);
  backdrop-filter: blur(6px) saturate(1.1);
  color: var(--fg);
}

.cq-card {
  padding:1rem 1.2rem;
  font-size:.95rem;
}

.cq-daily h3 {
  margin:0 0 .4rem;
  font-size:1.05rem;
  line-height:1.3;
  font-weight:600;
  color:var(--fg);
}
.cq-daily p {
  margin:.3rem 0 .8rem;
  color:var(--muted);
  line-height:1.4;
  font-size:.95rem;
}

/* Tile grid */
.cq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px,1fr));
  gap:1.5rem;
}

.cq-tile {
  text-decoration:none;
  color:var(--fg);
  padding:0.75rem 0.75rem 0.9rem;
  gap: 0.4rem;
  display: flex;
  flex-direction:column;
  font-size: 0.9rem;
  transition: box-shadow .15s ease,
              transform .15s ease;
}
.cq-tile:hover {
  box-shadow:0 24px 40px rgba(15,23,42,0.16);
  transform: translateY(-2px) scale(1.01);
  text-decoration:none;
}
.cq-tile h3 {
  margin:.6rem 0 .4rem;
  font-size:1.05rem;
  line-height:1.3;
  color:var(--fg);
  font-weight:600;
}
.cq-tile p {
  margin:0 0 .6rem;
  color:var(--muted);
  font-size:.9rem;
  line-height:1.4;
}
.cq-tags span {
  font-size:.75rem;
  line-height:1.2;
  color:var(--muted);
  margin-right:.5rem;
}

/* Generated cover thumbnails / imgs */
.cq-img {
  display:block;
  width:100%;
  height:20px;
  border-radius:10px;
  background:rgba(0,0,0,0.04);
  overflow:hidden;
  object-fit:cover;
}
.cq-img.duo {
  filter: grayscale(100%) contrast(1.05) brightness(0.9);
  mix-blend-mode: multiply;
  transition: filter .25s ease, transform .2s ease;
}
.cq-tile:hover .cq-img.duo {
  filter: grayscale(0%) contrast(1.1) brightness(1.0);
  transform: scale(1.01);
}
@media (prefers-color-scheme: dark){
  .cq-img.duo,
  .cq-hero__bg {
    filter: grayscale(20%) saturate(90%) brightness(0.9) contrast(1.05);
  }
}

/* Notes / Curios list wrappers */
.cq-list,
.cq-list--compact {
  display:grid;
  gap:1rem;
}
.cq-list > div,
.cq-list--compact > div {
  padding:1rem 1.2rem;
  font-size:.9rem;
  line-height:1.4;
  color:var(--fg);
}

/* skeleton placeholder text */
.cq-skeleton {
  color: var(--muted);
  font-size:.9rem;
  line-height:1.4;
  font-style: italic;
}

/* -------------------------------------------------
   8. Terminal block (Tools CLI look)
   ------------------------------------------------- */

.term {
  max-width:900px;
  margin:1rem auto;
  font-family:var(--font-mono);
  font-size:.9rem;
  line-height:1.4;
  min-height:360px;
}
.term-head {
  display:flex;
  align-items:center;
  gap:.4rem;
  padding:.4rem .6rem;
  border-bottom:1px solid var(--panel-border);
}
.dot { width:10px; height:10px; border-radius:50%; }
.dot.r { background:#ef4444; }
.dot.y { background:#f59e0b; }
.dot.g { background:#22c55e; }
.term-body {
  padding:.8rem .9rem;
}
.prompt { color:var(--muted); }
.in { color:var(--fg); }
.out { color:var(--fg); opacity:.95; }

/* -------------------------------------------------
   9. Footer
   ------------------------------------------------- */

.cq-footer {
  text-align:center;
  color:var(--muted);
  background:transparent;
  padding:3rem 1rem 4rem;
  font-size:.85rem;
  line-height:1.4;
}
.cq-footer a {
  color:#3b82f6;
  text-decoration:none;
}
.cq-footer a:hover {
  text-decoration:underline;
  text-underline-offset:2px;
}

/* -------------------------------------------------
   10. Links (in content)
   ------------------------------------------------- */

a {
  color:#0b5fff;
  text-decoration:none;
}
a:hover {
  text-decoration:underline;
  text-underline-offset:2px;
}
a:visited {
  color:#7c3aed;
}

/* don't force link blue inside nav/dock pills, they handle their own colors */
.cq-navlinks a,
.cq-dock a {
  color:inherit;
  text-decoration:none;
}
.cq-navlinks a:hover,
.cq-dock a:hover {
  text-decoration:none;
}

/* accessible focus rings */
a:focus-visible,
button:focus-visible,
.cq-btn:focus-visible,
.cq-btn-ghost:focus-visible {
  outline:2px solid #93C5FD;
  outline-offset:2px;
  border-radius:8px;
}

/* -------------------------------------------------
   11. Command palette (⌘K / Ctrl+K / ? overlay)
   ------------------------------------------------- */

.cq-kbar {
  position:fixed;
  inset:0;
  z-index:60;
  background:rgba(0,0,0,.35);
  display:none;            /* you toggle to grid/flex in JS when open */
  place-items:center;
}
.cq-kbar-box {
  width:min(720px,92vw);
  background:var(--panel-bg);
  color:var(--fg);
  border:1px solid var(--panel-border);
  border-radius:12px;
  box-shadow:0 30px 80px rgba(0,0,0,.4);
  backdrop-filter: blur(8px) saturate(1.15);
  padding:.8rem 1rem;
}
.cq-kbar-box input {
  width:100%;
  font-family:var(--font-sans);
  font-size:1rem;
  line-height:1.4;
  border:1px solid var(--panel-border);
  border-radius:8px;
  padding:.5rem .6rem;
  background:rgba(255,255,255,0.7);
  color:var(--fg);
  outline:none;
}
@media (prefers-color-scheme: dark){
  .cq-kbar-box input {
    background:rgba(15,23,42,0.6);
    color:var(--fg);
  }
}
.cq-kbar-list {
  margin-top:.8rem;
  max-height:240px;
  overflow-y:auto;
  font-size:.9rem;
  line-height:1.4;
  color:var(--fg);
}

/* -------------------------------------------------
   12. Responsive adjustments
   ------------------------------------------------- */

/* ultra-wide monitors: relax max-width */
@media (min-width:1800px){
  .cq-shell { max-width:1800px; }
  .cq-main  { max-width:1800px; gap:3rem; }
  .cq-section { margin-bottom:5rem; }
}

/* tablets / narrow */
@media (max-width:900px){
  .cq-main {
    grid-template-columns:1fr;
    padding:0 1rem 3rem;
    gap:1.5rem;
  }
  .cq-dock {
    display:none;
  }
  .cq-main > div {
    padding:0;
  }
  .cq-hero {
    border-radius:12px;
    margin-top:1rem;
    padding:2rem 1rem 2.5rem;
  }
  .cq-hero h1 { font-size:1.6rem; }
  .cq-hero p { font-size:.95rem; }
  .cq-grid {
    grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  }
}

#notesList .cq-imgthumb {
  height: 64px;
  border-radius:6px;
}

#toolsList .cq-imgthumb {
  height: 64px;
  border-radius:6px;
}

#labsList .cq-imgthumb {
  height: 64px;
  border-radius: 6px;
}