/* =================================================================ato
   GK SILICONES — DESIGN SYSTEM & DOCUMENT STYLES
   =================================================================== */

:root {
  --paper: #FDFBF7;
  --bone: #F4EFE6;
  --cream: #ECE7DD;
  --ink: #1F2D2A;
  --muted: #5F6B69;
  --clay: #D4654E;
  --forest: #1F2D2A;
  --line: rgba(31, 45, 42, 0.12);
  --shadow-1: 0 10px 30px rgba(31, 45, 42, 0.05);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-pill: 9999px;
  
  --f-display: 'Fraunces', serif;
  --f-sans: 'Inter', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;

  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
}

/* Base Reset & Typography */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--f-sans);
  background-color: var(--cream);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap, .container-wide {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--s-5);
}

/* Page Hero V2 */
.page-hero-v2 {
  padding: var(--s-7) 0 var(--s-5);
}
.breadcrumb-v2 {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--s-3);
}
.breadcrumb-v2 a { color: inherit; text-decoration: none; }
.breadcrumb-v2 span { margin: 0 6px; }
.breadcrumb-v2 .current { color: var(--ink); }

.page-hero-v2 h1 {
  font-family: var(--f-display);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--ink);
  margin-bottom: var(--s-2);
}
.page-hero-v2 h1 .italic { font-style: italic; color: var(--clay); }
.page-hero-v2 .lead {
  font-size: 16px;
  color: var(--muted);
  max-width: 600px;
}

/* Document Toolbar (Top Bar for TDS View) */
.doc-toolbar {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: var(--s-3) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}
.doc-toolbar .container-wide {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-family: var(--f-mono);
}
.doc-toolbar-left {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  color: var(--muted);
}
.doc-toolbar-left a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 500;
}
.doc-toolbar-left a:hover { color: var(--clay); }

.doc-toolbar-actions {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.doc-toolbar-actions button,
.doc-toolbar-actions a {
  background: none;
  border: 1px solid var(--line);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
.doc-toolbar-actions button:hover,
.doc-toolbar-actions a:hover {
  border-color: var(--clay);
  color: var(--clay);
}

/* Document Sheet Container (TDS Layout) */
main.document {
  max-width: 850px;
  margin: var(--s-6) auto var(--s-7);
  background: var(--paper);
  padding: var(--s-7);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--line);
}

.doc-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--s-6);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--line);
}
.doc-header-brand img {
  height: 36px;
  width: auto;
}
.doc-header-meta {
  text-align: right;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.5;
}
.doc-header-meta .doc-type {
  display: inline-block;
  background: rgba(212,101,78,0.1);
  color: var(--clay);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.doc-title {
  font-family: var(--f-display);
  font-size: 38px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 4px;
}
.doc-subtitle {
  font-size: 15px;
  color: var(--muted);
  margin-bottom: var(--s-6);
}

/* Document Sections */
.doc-section {
  margin-bottom: var(--s-6);
}
.doc-section h2 {
  font-family: var(--f-sans);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink);
  margin-bottom: var(--s-3);
  display: flex;
  align-items: center;
  gap: 8px;
  background: peachpuff;
  min-height: 3rem;
}
.doc-section h2 .num {
  font-family: var(--f-mono);
  color: var(--clay);
  font-size: 12px;
  margin-left: 2rem;
}
.doc-section p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.6;
}

/* Tables in Document */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-top: var(--s-2);
}
.spec-table th,
.spec-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}
.spec-table th {
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--bone);
  font-weight: 600;
}
.spec-table tr:hover td {
  background: rgba(244, 239, 230, 0.4);
}
.spec-table .param {
  font-weight: 500;
  color: var(--ink);
  width: 40%;
}
.spec-table .value {
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: 12px;
}

/* Document Footer */
.doc-footer {
  margin-top: var(--s-7);
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--s-5);
}
.doc-footer .disclaimer {
  font-size: 11px;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.5;
}
.doc-footer-meta {
  text-align: right;
  font-family: var(--f-mono);
  font-size: 11px;
}
.doc-footer-meta .stamp {
  font-weight: 700;
  color: var(--forest);
  border: 1px solid var(--forest);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}
.btn-ghost:hover {
  border-color: var(--clay);
  color: var(--clay);
}

/* Print Media Query */
@media print {
  .doc-toolbar, .print-hide, .breadcrumb-v2 { display: none !important; }
  body { background: #fff !important; }
  main.document {
    box-shadow: none !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
    max-width: 100% !important;
  }
}

@media (max-width: 768px) {
  main.document { padding: var(--s-4); margin: var(--s-3); }
  .doc-footer { flex-direction: column; align-items: flex-start; }
  .doc-footer-meta { text-align: left; }
}