/* Pocklit vault pages: the homepage's design language (pastel gradient, frosted-glass cards,
   serif headings, soft pills) in each vault's own colours. Loaded after every vault page's inline
   styles; body classes come from scripts/apply_chrome.py:
     vault            every vault page
     v-gpa v-text v-qr v-pdf   which vault (its colours)
     p-hub p-calc p-article    page type
   Vault colour variables (--accent etc.) are never redefined here, except the muted greys, which are
   darkened to meet WCAG AA contrast. */

/* ── 1. Per-vault tokens ─────────────────────────────────────────── */
body.vault {
  --pk-glass: rgba(255, 255, 255, 0.5);
  --pk-glass-strong: rgba(255, 255, 255, 0.62);
  --pk-glass-border: rgba(255, 255, 255, 0.75);
  --pk-fill: rgba(255, 255, 255, 0.55);          /* inner fills: inputs, rows, chips */
  --pk-radius: 20px;
}
body.v-gpa  { --pk-tint: 45, 106, 79;  --pk-shadow-tint: 52, 84, 66; }
body.v-text { --pk-tint: 79, 93, 138;  --pk-shadow-tint: 60, 70, 130; --ink-muted: #686a82; }
body.v-qr   { --pk-tint: 196, 107, 26; --pk-shadow-tint: 120, 70, 20; --ink-muted: #7f6b47; }
body.v-pdf  { --pk-tint: 15, 98, 254;  --pk-shadow-tint: 40, 70, 140; --soft: #637185; }
body.vault {
  --pk-line: rgba(var(--pk-tint), 0.13);
  --pk-shadow: 0 4px 24px rgba(var(--pk-shadow-tint), 0.08), 0 1px 4px rgba(var(--pk-shadow-tint), 0.05);
  --pk-shadow-hover: 0 12px 40px rgba(var(--pk-shadow-tint), 0.14);
  /* inner fills that used the flat page colour become frosted white */
  --bg: var(--pk-fill);
  --surface3: rgba(255, 255, 255, 0.45);
}

/* ── 2. The homepage gradient, tinted per vault ─────────────────── */
html body.vault { background-repeat: no-repeat; min-height: 100vh; }
html body.v-gpa {
  background-color: #e7eee4;
  background-image:
    radial-gradient(ellipse at 20% 20%, #cfe5d4 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, #e5ecd3 0%, transparent 45%),
    radial-gradient(ellipse at 60% 80%, #d5e6e0 0%, transparent 45%),
    radial-gradient(ellipse at 10% 80%, #f0e9d3 0%, transparent 40%);
}
html body.v-text {
  background-color: #e3e6f3;
  background-image:
    radial-gradient(ellipse at 20% 20%, #cdd4ee 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, #e3dcf2 0%, transparent 45%),
    radial-gradient(ellipse at 60% 80%, #dcdcf3 0%, transparent 45%),
    radial-gradient(ellipse at 10% 80%, #e9e5f3 0%, transparent 40%);
}
html body.v-qr {
  background-color: #f7eadb;
  background-image:
    radial-gradient(ellipse at 20% 20%, #f4dcc2 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, #f6e5cd 0%, transparent 45%),
    radial-gradient(ellipse at 60% 80%, #f2dcd8 0%, transparent 45%),
    radial-gradient(ellipse at 10% 80%, #f7eed2 0%, transparent 40%);
}
html body.v-pdf {
  background-color: #dfe8f6;
  background-image:
    radial-gradient(ellipse at 20% 20%, #c9d9f3 0%, transparent 50%),
    radial-gradient(ellipse at 80% 10%, #d3e6f1 0%, transparent 45%),
    radial-gradient(ellipse at 60% 80%, #dcdff5 0%, transparent 45%),
    radial-gradient(ellipse at 10% 80%, #e3edf8 0%, transparent 40%);
}

/* ── 3. Frosted-glass cards (the homepage's .tool-card recipe) ──── */
.vault :is(.calc-card, .content-section, .content-card, .tool-card, .faq-section, .sidebar,
           .card, .upload-card, .seo-card, .tool-guide-card, .tool-directory-card),
.vault.p-article :is(.section) {
  background: var(--pk-glass);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--pk-glass-border);
  box-shadow: var(--pk-shadow);
  border-radius: var(--pk-radius);
}
/* working tool panels sit a little more opaque so inputs stay crisp */
.vault :is(.calc-card, .card, .upload-card),
.v-text .tool-card { background: var(--pk-glass-strong); }
.vault a.tool-card { transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.22s, background 0.2s; }
.vault a.tool-card:hover { background: rgba(255, 255, 255, 0.66); box-shadow: var(--pk-shadow-hover); }
/* result cards keep their solid colour (white text on the vault colour); they only get the softer shape */
.v-gpa .result-card { border-radius: var(--pk-radius); box-shadow: 0 10px 30px rgba(var(--pk-shadow-tint), 0.16); }
/* dividers inside cards: soft tint instead of grey */
.vault :is(.tool-card-header, .card-head, .course-table-head) { border-color: var(--pk-line); }

/* ── 4. Page headers: no flat white band, the gradient shows through ─ */
.vault :is(.page-header, .hero, .features, .tabs-bar, .mobile-tabs, .how-section, .seo-section) {
  background: transparent; border-color: transparent; box-shadow: none;
}
.vault .page-header h1, .vault .hero h1 { letter-spacing: -0.03em; }
.vault .page-header h1 { font-size: clamp(1.9rem, 4.6vw, 2.6rem); line-height: 1.12; }
.vault .page-header h1 em, .vault .hero h1 em { font-style: italic; color: var(--accent); }
.vault :is(.page-header, .hero) p { color: var(--ink-light); font-weight: 300; }
/* line the page heading up with the card below it */
.v-gpa.p-calc .page-header-inner { max-width: 656px; }
.v-gpa.p-article .page-header-inner { max-width: 680px; }
.v-text .page-header-inner { max-width: 1080px; }
.v-gpa .features { padding: 0.25rem 1.25rem 0.5rem; margin-top: 1.5rem; }
.v-gpa .features-inner { gap: 0.5rem; }
.v-gpa .feature {
  background: var(--pk-glass); border: 1px solid var(--pk-glass-border); border-radius: 100px;
  padding: 0.35rem 0.9rem; box-shadow: 0 2px 6px rgba(var(--pk-shadow-tint), 0.06);
}

/* Badges become the homepage's glass pill ("✦ A growing toolkit") */
.vault :is(.tool-badge, .hero-badge) {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.85);
  color: var(--accent-dark, var(--accent));
  box-shadow: 0 2px 8px rgba(var(--pk-shadow-tint), 0.08);
  font-size: 0.74rem; font-weight: 600; letter-spacing: 0.05em;
}

/* ── 5. Tabs and segmented controls ─────────────────────────────── */
.v-qr .tabs-bar { border-bottom: 1px solid rgba(255, 255, 255, 0.6); }
.v-qr .tab-btn { color: var(--ink-light); }
.vault .mobile-tab { border-color: rgba(255, 255, 255, 0.85); background: var(--pk-glass); color: var(--ink-light); }
.vault .mobile-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── 6. Inner fills: inputs, rows and chips are frosted white ───── */
/* (anything that used the flat page colour, var(--bg), is frosted already via the token above) */
.vault :is(.course-input, .input, .select, .rule-input, textarea.main-input, textarea.merge-input, .diff-content),
.v-qr .field :is(input, select, textarea) {
  background-color: rgba(255, 255, 255, 0.72);
  border-color: rgba(var(--pk-tint), 0.16);
}
.vault :is(.course-input, .input, .select, .rule-input, textarea.main-input, textarea.merge-input):focus,
.v-qr .field :is(input, select, textarea):focus { background-color: #fff; }
.v-text .sidebar .tool-nav-item:hover { background: rgba(255, 255, 255, 0.55); }
/* GPA calculators: the "Related tools" box and the guide note (inline-styled) become glass */
.v-gpa .content-section > div[style*="background:#f5f3ee"] { background: rgba(255, 255, 255, 0.42) !important; border: 1px solid rgba(255, 255, 255, 0.8); }
.v-gpa .content-section > div[style*="background:#f5f3ee"] a[style] {
  background: rgba(255, 255, 255, 0.72) !important; border-color: rgba(255, 255, 255, 0.95) !important; border-radius: 100px !important;
  box-shadow: 0 2px 6px rgba(var(--pk-shadow-tint), 0.06); transition: background 0.2s, color 0.2s;
}
.v-gpa .content-section > div[style*="background:#f5f3ee"] a[style]:hover { background: #fff !important; color: var(--accent) !important; }
.v-gpa .content-section > div[style*="background:#fff;border:1.5px solid #edeae3"] { background: rgba(255, 255, 255, 0.55) !important; border-color: rgba(255, 255, 255, 0.85) !important; }

/* in-text links: the vault colour with a soft underline, not the browser's default blue */
.vault :is(.section, .content-section, .content-card, .faq-section, .faq-a, .seo-card, .how-copy, .tool-guide p) a:not([class]):not([style]) {
  color: var(--accent-dark, var(--accent)); font-weight: 500;
  text-decoration: underline; text-decoration-color: rgba(var(--pk-tint), 0.35); text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}
.vault :is(.section, .content-section, .content-card, .faq-section, .faq-a, .seo-card, .how-copy, .tool-guide p) a:not([class]):not([style]):hover { text-decoration-color: currentColor; }

/* ── 7. One FAQ style everywhere: quiet rows divided by soft lines ── */
.vault .faq-list { gap: 0; }
.vault .faq-item {
  background: transparent; border: 0; border-radius: 0; overflow: visible;
  border-top: 1px solid var(--pk-line); padding: 1rem 0;
}
.vault .faq-item:first-child, .vault .faq-item:first-of-type { border-top: 0; }
.vault .faq-q { font-size: 0.95rem; font-weight: 600; color: var(--ink); line-height: 1.45; }
.vault .faq-a { font-size: 0.9rem; color: var(--ink-light); font-weight: 400; line-height: 1.7; }
.v-qr .faq-q { padding: 0; gap: 1rem; }
.v-qr .faq-a { padding: 0.45rem 0 0; }
.v-qr .faq-q::after { font-size: 1.25rem; line-height: 1; }

/* ── 8. Readable labels (min 0.72rem, darker) ────────────────────── */
.v-text :is(.sidebar-title, .output-label, .custom-rules-title, .presets-title, .limit-bar-title, .stat-label),
.v-gpa :is(.table-label, .scale-type, .sem-breakdown-title, .section-label) {
  font-size: 0.72rem; letter-spacing: 0.08em;
}
.v-gpa .card-tag { font-size: 0.7rem; }

/* ── 9. PDF Vault ───────────────────────────────────────────────── */
/* the editor keeps its solid working surfaces; the chrome around it turns to glass */
.v-pdf .app-topbar { background: rgba(255, 255, 255, 0.62); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom-color: rgba(255, 255, 255, 0.7); }
/* utility tools (merge, split, convert, export) carry their own heading: hide the duplicate
   title bar above them. The editor's bar, with its buttons, stays. */
.v-pdf .app-topbar.utility-chrome { display: none; }
/* workspace switcher: a floating glass pill group, like the homepage's hero pills */
.v-pdf .mode-switch {
  justify-self: center; width: max-content; max-width: calc(100% - 2rem); margin: 1rem auto 0.25rem; padding: 0.3rem;
  background: rgba(255, 255, 255, 0.55); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.8); border-radius: 100px; box-shadow: 0 2px 10px rgba(var(--pk-shadow-tint), 0.08);
}
.v-pdf .mode-btn { font-weight: 600; color: var(--muted); padding: 0.45rem 0.95rem; }
.v-pdf .mode-btn.active { background: var(--accent); color: #fff; }
.v-pdf .mode-btn:not(.active):hover { background: rgba(255, 255, 255, 0.8); color: var(--accent2); }
.v-pdf .editor-shell { min-height: calc(100vh - 60px); grid-template-columns: minmax(0, 1fr); }
.v-pdf .editor-shell:has(.utility-panel.active) { min-height: 0; }
.v-pdf .empty-editor { min-height: calc(100vh - 220px); }
.v-pdf .utility-panel { padding-top: 0.75rem; }
.v-pdf .utility-grid > .section { background: var(--pk-glass); border: 1px solid var(--pk-glass-border); box-shadow: var(--pk-shadow); border-radius: var(--pk-radius); padding: 1.25rem 1.35rem; }
.v-pdf .card-head { border-bottom-color: var(--pk-line); }
.v-pdf :is(.drop-zone, .upload-drop) { background: rgba(255, 255, 255, 0.55); }
.v-pdf :is(.file-row, .tool-note, .engine-option, .how-steps li, .upload-points li) { background: rgba(255, 255, 255, 0.55); border-color: rgba(255, 255, 255, 0.85); }
.v-pdf .how-steps li::before { background: var(--accent); }
.v-pdf .how-inner { padding-top: 3rem; }
.v-pdf.p-article .section { padding: 1.75rem; }
/* tool pages: a page heading above the tool, like the other vaults */
.v-pdf .pdf-tool-head { text-align: center; padding: 1.5rem 0 1.6rem; }
.v-pdf .pdf-tool-head h1 { font-family: 'DM Serif Display', serif; font-weight: 400; font-size: clamp(1.9rem, 4.6vw, 2.6rem); line-height: 1.12; letter-spacing: -0.03em; margin: 0.85rem 0 0.5rem; color: var(--ink); }
.v-pdf .pdf-tool-head p { max-width: 560px; margin: 0 auto; color: var(--muted); font-weight: 300; font-size: 0.98rem; line-height: 1.7; }
.v-pdf .hero-badge { display: inline-flex; align-items: center; gap: 0.4rem; padding: 0.3rem 0.85rem; border-radius: 100px; text-transform: uppercase; }

/* ── 10. Tool guide and directory (generated by build_tool_pages.py) ─ */
.tool-guide, .tool-directory { max-width: 860px; margin: 1.25rem auto; padding: 0 1.25rem; font-family: 'DM Sans', system-ui, sans-serif; color: var(--ink); }
.tool-directory { margin-bottom: 3rem; }
.v-pdf :is(.tool-guide, .tool-directory) { max-width: 980px; }
.v-pdf .tool-guide { margin-top: 2rem; }
/* the tool area's own bottom padding was sized for a page end; the guide follows it now */
.v-qr:is(.p-hub, .p-tool) .main { padding-bottom: 1.25rem; }
.v-text:is(.p-hub, .p-tool) .app-layout { padding-bottom: 1.25rem; }
.tool-guide-card, .tool-directory-card { padding: clamp(1.3rem, 4vw, 2rem); }
.tool-guide h2, .tool-directory h2 { font-family: 'DM Serif Display', Georgia, serif; font-weight: 400; font-size: 1.4rem; letter-spacing: -0.02em; line-height: 1.25; margin: 0 0 1rem; color: var(--ink); }
.tool-guide * + h2 { margin-top: 2rem; }
.tool-guide p { color: var(--ink-light); line-height: 1.7; margin: 0; font-size: 0.92rem; }
.tool-guide h3 { font-size: 0.98rem; font-weight: 600; line-height: 1.45; margin: 0; color: var(--ink); }
/* numbered steps */
.tool-steps { list-style: none; margin: 0; padding: 0; counter-reset: step; display: grid; gap: 0.7rem; }
.tool-steps li { counter-increment: step; display: grid; grid-template-columns: 28px 1fr; gap: 0.85rem; align-items: start; color: var(--ink-light); line-height: 1.65; font-size: 0.94rem; }
.tool-steps li::before {
  content: counter(step); width: 28px; height: 28px; border-radius: 9px; margin-top: -0.1rem;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, 0.75); border: 1px solid rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 8px rgba(var(--pk-shadow-tint, 60, 80, 140), 0.1);
  color: var(--accent-dark, var(--accent)); font-weight: 700; font-size: 0.82rem;
}
/* questions */
.tool-faq { display: grid; }
.tool-faq > div { border-top: 1px solid var(--pk-line, rgba(60, 80, 140, 0.12)); padding: 0.95rem 0; }
.tool-faq > div:first-child { border-top: 0; padding-top: 0; }
.tool-faq > div:last-child { padding-bottom: 0; }
.tool-faq p { margin-top: 0.35rem; }
/* related tools and guides: glass link cards */
.tool-links { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 0.65rem; }
.tool-links a {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; height: 100%;
  padding: 0.85rem 1rem; border-radius: 14px; text-decoration: none;
  background: rgba(255, 255, 255, 0.55); border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 2px 8px rgba(var(--pk-shadow-tint, 60, 80, 140), 0.06);
  color: var(--ink); font-size: 0.92rem; font-weight: 500; line-height: 1.35;
  transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.tool-links a::after { content: '\2192'; color: var(--accent); font-weight: 600; flex-shrink: 0; transition: transform 0.2s; }
.tool-links a:hover { background: rgba(255, 255, 255, 0.85); box-shadow: 0 8px 24px rgba(var(--pk-shadow-tint, 60, 80, 140), 0.12); transform: translateY(-2px); color: var(--ink); }
.tool-links a:hover::after { transform: translateX(3px); }
.tool-links .tool-link-kind { display: block; font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent-dark, var(--accent)); margin-bottom: 0.2rem; }
/* "All ... tools" directory: glass chips, current tool filled in the vault colour */
.tool-directory h2 a { color: inherit; text-decoration: none; }
.tool-directory ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; padding: 0; margin: 0; }
.tool-directory li a {
  display: inline-block; padding: 0.45rem 0.95rem; border-radius: 100px; text-decoration: none;
  background: rgba(255, 255, 255, 0.55); border: 1px solid rgba(255, 255, 255, 0.85);
  color: var(--ink-light); font-size: 0.875rem; font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.tool-directory li a:hover { background: #fff; color: var(--accent); }
.tool-directory li a[aria-current] { background: var(--accent); border-color: var(--accent); color: #fff; }

@media (max-width: 600px) {
  .vault .page-header h1 { font-size: clamp(1.7rem, 7.4vw, 2.1rem); }
  /* every workspace stays visible on a phone: the pill group wraps instead of scrolling */
  .v-pdf .mode-switch { flex-wrap: wrap; justify-content: center; width: auto; border-radius: 20px; gap: 0.2rem; }
  .v-pdf .mode-btn { padding: 0.45rem 0.8rem; }
  .tool-links { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  .vault a.tool-card, .tool-links a { transition: none; }
}