/* ════════════════════════════════════════
   TOKENS — light / dark
════════════════════════════════════════ */
:root, [data-theme="light"] {
  --navy:      #0f1e3c;
  --navy2:     #1a2f58;
  --teal:      #1a7f74;
  --teal-l:    #e6f4f2;
  --gold:      #c8963e;
  --slate:     #4a5568;
  --mist:      #f4f6fa;
  --border:    #dde3ed;
  --bg:        #ffffff;
  --bg2:       #f4f6fa;
  --card-bg:   #ffffff;
  --text:      #1a202c;
  --text2:     #4a5568;
  --nav-bg:    rgba(255,255,255,0.96);
  --sidebar-bg:#f8fafc;
  --footer-bg: #0f1e3c;
  --shadow:    0 2px 16px rgba(15,30,60,0.08);
  --shadow-md: 0 8px 32px rgba(15,30,60,0.12);
  --hero-grid: rgba(15,30,60,0.045);
  --hero-teal-glow: rgba(26,127,116,0.10);
  --hero-gold-glow: rgba(200,150,62,0.10);
  /* canvas — full-bleed pages (home, access). Light theme puts them on the
     same surfaces as every other page; dark theme keeps the deep-navy look. */
  --canvas-bg:     var(--bg);
  --canvas-panel:  var(--bg2);
  --canvas-line:   var(--border);
  --canvas-title:  var(--navy);
  --canvas-text:   var(--text);
  --canvas-text2:  var(--text2);
  --canvas-text3:  var(--slate);
  --canvas-accent: var(--teal);
  --canvas-gold:   var(--gold);
}
[data-theme="dark"] {
  --navy:      #7eb8d4;
  --navy2:     #93c9e3;
  --teal:      #3ecfc3;
  --teal-l:    #0d2e2b;
  --gold:      #e8b96e;
  --slate:     #94a3b8;
  --mist:      #1a2236;
  --border:    #2a3550;
  --bg:        #0d1524;
  --bg2:       #111b30;
  --card-bg:   #141f35;
  --text:      #e2e8f0;
  --text2:     #94a3b8;
  --nav-bg:    rgba(13,21,36,0.97);
  --sidebar-bg:#0b1220;
  --footer-bg: #080f1d;
  --shadow:    0 2px 16px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.45);
  --hero-grid: rgba(255,255,255,0.03);
  --hero-teal-glow: rgba(62,207,195,0.18);
  --hero-gold-glow: rgba(232,185,110,0.12);
  --canvas-bg:     #080f1d;
  --canvas-panel:  rgba(255,255,255,0.05);
  --canvas-line:   rgba(255,255,255,0.12);
  --canvas-title:  #ffffff;
  --canvas-text:   rgba(255,255,255,0.7);
  --canvas-text2:  rgba(255,255,255,0.55);
  --canvas-text3:  rgba(255,255,255,0.4);
  --canvas-accent: #3ecfc3;
  --canvas-gold:   #e8b96e;
}

/* ════════════════════════════════════════
   BASE
════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  color: var(--text); background: var(--bg); line-height: 1.7;
  transition: background 0.3s ease, color 0.3s ease;
}
a { color: inherit; text-decoration: none; }

/* ── PAGE SYSTEM ── */
.page { display: none; animation: fadeIn 0.3s ease; }
.page.active { display: block; }
@keyframes fadeIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

/* ── UTILITIES ── */
.section { padding: 3.5rem 0; }
.section-label {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--teal); margin-bottom: 0.6rem; display: block;
}
.section-title {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  color: var(--navy); line-height: 1.2; margin-bottom: 1rem; transition: color 0.3s;
}
.section-lead { font-size: 1rem; color: var(--text2); max-width: 680px; line-height: 1.8; }
.badge {
  display: inline-block; padding: 0.3rem 0.85rem; border-radius: 999px;
  font-size: 0.8rem; font-weight: 500;
  background: var(--teal-l); color: var(--teal); border: 1px solid currentColor;
  transition: background 0.3s, color 0.3s;
}
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.72rem 1.5rem; font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.9rem; font-weight: 500; border-radius: 10px;
  cursor: pointer; border: 2px solid transparent;
  transition: all 0.2s ease; text-decoration: none;
}
.btn-primary  { background: var(--navy);  color:#fff; border-color:var(--navy); }
.btn-primary:hover  { background: var(--navy2); transform:translateY(-1px); box-shadow:var(--shadow-md); }
.btn-outline  { background: transparent; color:var(--navy); border-color:var(--navy); }
.btn-outline:hover  { background: var(--navy); color:#fff; transform:translateY(-1px); }
.btn-teal     { background: var(--teal);  color:#fff; border-color:var(--teal); }
.btn-teal:hover     { opacity:.88; transform:translateY(-1px); box-shadow:var(--shadow-md); }

/* ════════════════════════════════════════
   TOP NAV
════════════════════════════════════════ */
nav {
  position: sticky; top:0; z-index:200;
  background: var(--nav-bg); backdrop-filter:blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, border-color 0.3s;
}
.nav-inner {
  display:flex; align-items:center; justify-content:space-between;
  height:64px; max-width:1400px; margin:0 auto; padding:0 2rem;
}
.nav-logo {
  font-family:'DM Serif Display',Georgia,serif; font-size:1.15rem;
  color:var(--navy); font-style:italic; cursor:pointer; transition:color 0.3s; white-space:nowrap;
}
.nav-logo span { font-style:normal; color:var(--teal); }
.nav-links { display:flex; gap:0.15rem; list-style:none; align-items:center; }
.nav-links li a {
  font-size:0.82rem; font-weight:500; color:var(--text2);
  padding:0.4rem 0.65rem; border-radius:6px;
  transition:all 0.15s; white-space:nowrap; cursor:pointer; display:block;
}
.nav-links li a:hover { color:var(--navy); background:var(--mist); }
.nav-links li a.active { color:var(--navy); background:var(--mist); font-weight:600; }

/* theme toggle */
.theme-toggle {
  width:38px; height:38px; border-radius:50%;
  border:1.5px solid var(--border); background:var(--card-bg); color:var(--text2);
  cursor:pointer; display:flex; align-items:center; justify-content:center;
  font-size:1rem; transition:all 0.2s; flex-shrink:0; margin-left:0.5rem;
}
.theme-toggle:hover { border-color:var(--teal); color:var(--teal); transform:rotate(20deg) scale(1.05); }

/* sidebar drawer toggle (mobile) */
.sidebar-toggle {
  display:none; width:38px; height:38px; border-radius:8px;
  border:1.5px solid var(--border); background:var(--card-bg); color:var(--text2);
  cursor:pointer; align-items:center; justify-content:center;
  font-size:1.1rem; transition:all 0.2s; margin-left:0.4rem;
}
.sidebar-toggle:hover { border-color:var(--teal); color:var(--teal); }

.nav-hamburger {
  display:none; flex-direction:column; gap:5px;
  cursor:pointer; padding:0.5rem; border:none; background:none;
}
.nav-hamburger span { display:block; width:22px; height:2px; background:var(--navy); border-radius:2px; transition:background 0.3s; }
.mobile-menu {
  display:none; flex-direction:column;
  background:var(--bg); border-top:1px solid var(--border);
  padding:1rem 2rem; gap:0.25rem; transition:background 0.3s;
}
.mobile-menu a {
  font-size:0.9rem; font-weight:500; color:var(--text2);
  padding:0.6rem 0; border-bottom:1px solid var(--border); display:block; cursor:pointer;
  transition:color 0.3s, border-color 0.3s;
}
.mobile-menu a:last-child { border-bottom:none; }
.mobile-menu a.active { color:var(--teal); }
.mobile-menu.open { display:flex; }

/* ════════════════════════════════════════
   DOCS LAYOUT  (sidebar + main + right-panel)
════════════════════════════════════════ */
.docs-layout {
  display:flex; align-items:flex-start;
  max-width:1400px; margin:0 auto;
  min-height: calc(100vh - 64px);
}

/* ── LEFT SIDEBAR ── */
.sidebar {
  width:240px; flex-shrink:0;
  position:sticky; top:64px;
  height:calc(100vh - 64px);
  overflow-y:auto; overflow-x:hidden;
  background:var(--sidebar-bg);
  border-right:1px solid var(--border);
  padding:1.5rem 0 3rem;
  transition:background 0.3s, border-color 0.3s, transform 0.3s;
  scrollbar-width:thin; scrollbar-color:var(--border) transparent;
}
.sidebar::-webkit-scrollbar { width:4px; }
.sidebar::-webkit-scrollbar-thumb { background:var(--border); border-radius:4px; }

/* sidebar group */
.sb-group { margin-bottom:0.25rem; }
.sb-group-toggle {
  display:flex; align-items:center; justify-content:space-between;
  width:100%; padding:0.5rem 1.25rem;
  font-family:'DM Mono',monospace; font-size:0.68rem;
  letter-spacing:0.12em; text-transform:uppercase;
  color:var(--text2); font-weight:600;
  background:none; border:none; cursor:pointer;
  transition:color 0.15s;
}
.sb-group-toggle:hover { color:var(--navy); }
.sb-arrow { font-size:0.7rem; transition:transform 0.2s; }
.sb-group.open .sb-arrow { transform:rotate(90deg); }

.sb-links { list-style:none; overflow:hidden; max-height:0; transition:max-height 0.3s ease; }
.sb-group.open .sb-links { max-height:600px; }
.sb-links li a {
  display:block; padding:0.38rem 1.25rem 0.38rem 1.6rem;
  font-size:0.82rem; color:var(--text2);
  border-left:3px solid transparent;
  cursor:pointer; transition:all 0.15s;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.sb-links li a:hover { color:var(--navy); background:var(--mist); border-left-color:var(--border); }
.sb-links li a.active {
  color:var(--teal); background:var(--teal-l);
  border-left-color:var(--teal); font-weight:600;
}

/* sidebar overlay (mobile) */
.sidebar-overlay {
  display:none; position:fixed; inset:0; z-index:149;
  background:rgba(0,0,0,0.4); backdrop-filter:blur(2px);
}
.sidebar-overlay.open { display:block; }

/* ── MAIN CONTENT ── */
.main-content {
  flex:1; min-width:0;
  padding:2.5rem 2.5rem 4rem;
}

/* ── RIGHT PANEL ── */
.right-panel {
  width:210px; flex-shrink:0;
  position:sticky; top:64px;
  height:calc(100vh - 64px);
  overflow-y:auto; overflow-x:hidden;
  padding:1.75rem 1.25rem;
  border-left:1px solid var(--border);
  transition:border-color 0.3s;
  scrollbar-width:thin; scrollbar-color:var(--border) transparent;
}
.right-panel::-webkit-scrollbar { width:4px; }
.right-panel::-webkit-scrollbar-thumb { background:var(--border); border-radius:4px; }
.right-panel.hidden { display:none; }
.otp-label {
  font-family:'DM Mono',monospace; font-size:0.65rem;
  letter-spacing:0.12em; text-transform:uppercase;
  color:var(--text2); margin-bottom:0.75rem; display:block; opacity:0.7;
}
.otp-links { list-style:none; }
.otp-links li { margin-bottom:0.15rem; }
.otp-links li a {
  display:block; font-size:0.78rem; color:var(--text2);
  padding:0.3rem 0.5rem;
  border-left:2px solid transparent;
  cursor:pointer; transition:all 0.15s;
}
.otp-links li a:hover { color:var(--navy); }
.otp-links li a.active { color:var(--teal); border-left-color:var(--teal); font-weight:500; }

/* ════════════════════════════════════════
   BREADCRUMB
════════════════════════════════════════ */
.breadcrumb {
  display:flex; align-items:center; gap:0.4rem;
  font-size:0.78rem; color:var(--text2);
  margin-bottom:1.25rem;
}
.breadcrumb span { opacity:0.55; }
.breadcrumb a { color:var(--teal); cursor:pointer; }
.breadcrumb a:hover { text-decoration:underline; }
.breadcrumb .sep { opacity:0.4; font-size:0.7rem; }

/* ════════════════════════════════════════
   PAGE: HOME (full-width hero, no sidebar)
════════════════════════════════════════ */
#page-home {
  background:var(--canvas-bg);
  min-height:calc(100vh - 64px); position:relative; overflow:hidden;
  transition:background 0.3s;
}
#page-home::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size:48px 48px;
}
#page-home::after {
  content:''; position:absolute; top:-100px; right:-100px;
  width:500px; height:500px;
  background:radial-gradient(circle, var(--hero-teal-glow) 0%, transparent 65%);
  pointer-events:none;
}
.home-glow2 {
  position:absolute; bottom:-80px; left:-60px;
  width:400px; height:400px;
  background:radial-gradient(circle, var(--hero-gold-glow) 0%, transparent 65%);
  pointer-events:none;
}
.home-inner {
  position:relative; z-index:1;
  max-width:1100px; margin:0 auto; padding:6rem 2rem 5rem;
  display:grid; grid-template-columns:1fr 380px; gap:4rem; align-items:center;
}
.hero-eyebrow {
  font-family:'DM Mono',monospace; font-size:0.72rem;
  letter-spacing:0.18em; text-transform:uppercase;
  color:var(--canvas-accent); margin-bottom:1rem;
  display:flex; align-items:center; gap:0.5rem;
}
.hero-eyebrow::before { content:''; display:inline-block; width:24px; height:2px; background:var(--canvas-accent); }
.hero-title { font-family:'DM Serif Display',Georgia,serif; font-size:clamp(2.5rem,5vw,4rem); color:var(--canvas-title); line-height:1.1; margin-bottom:0.5rem; }
.hero-title em { color:var(--canvas-gold); font-style:italic; }
.hero-subtitle { font-size:1.1rem; color:var(--canvas-text); font-weight:300; margin-bottom:1.5rem; line-height:1.6; }
.hero-desc { font-size:0.93rem; color:var(--canvas-text2); line-height:1.8; margin-bottom:2.5rem; max-width:520px; }
.hero-buttons { display:flex; gap:1rem; flex-wrap:wrap; }
.hero-vis {
  background:var(--canvas-panel); border:1px solid var(--canvas-line);
  border-radius:14px; padding:1.5rem; display:flex; flex-direction:column; gap:1rem;
  transition:background 0.3s, border-color 0.3s;
}
.hero-vis-title {
  font-family:'DM Mono',monospace; font-size:0.65rem; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--canvas-text3);
  padding-bottom:0.5rem; border-bottom:1px solid var(--canvas-line);
}
.vis-node-row { display:flex; align-items:center; gap:0.75rem; }
.vis-dot { width:9px; height:9px; border-radius:50%; flex-shrink:0; }
.vis-dot.teal  { background:var(--canvas-accent); box-shadow:0 0 8px rgba(62,207,195,0.6); }
.vis-dot.gold  { background:var(--canvas-gold); box-shadow:0 0 8px rgba(232,185,110,0.6); }
.vis-dot.slate { background:#718096; }
.vis-dot.white { background:var(--canvas-text3); }
/* the glow only reads on the dark canvas */
[data-theme="light"] .vis-dot { box-shadow:none; }
.vis-label { font-size:0.78rem; color:var(--canvas-text2); font-weight:300; }
.vis-bar-wrap { flex:1; height:4px; background:var(--canvas-line); border-radius:2px; overflow:hidden; }
.vis-bar { height:100%; border-radius:2px; }
.vis-divider { height:1px; background:var(--canvas-line); }
.vis-stats { display:grid; grid-template-columns:1fr 1fr; gap:0.75rem; }
.vis-stat { text-align:center; }
.vis-stat-val { font-family:'DM Serif Display',Georgia,serif; font-size:1.4rem; color:var(--canvas-title); }
.vis-stat-lbl { font-size:0.65rem; color:var(--canvas-text3); text-transform:uppercase; letter-spacing:0.1em; margin-top:0.1rem; }

/* ════════════════════════════════════════
   INNER PAGE COMPONENTS
════════════════════════════════════════ */

/* overview */
.overview-grid { display:grid; grid-template-columns:1fr 1fr; gap:2.5rem; align-items:start; margin-top:2rem; }
.overview-text p { color:var(--text2); line-height:1.85; margin-bottom:1rem; font-size:0.97rem; }
.overview-cards { display:grid; grid-template-columns:1fr 1fr; gap:1rem; }
.stat-card {
  background:var(--bg2); border:1px solid var(--border);
  border-radius:10px; padding:1.4rem 1.25rem; text-align:center;
  transition:all 0.2s, background 0.3s, border-color 0.3s;
}
.stat-card:hover { border-color:var(--teal); box-shadow:var(--shadow); transform:translateY(-2px); }
.stat-card-val { font-family:'DM Serif Display',Georgia,serif; font-size:2rem; color:var(--navy); line-height:1; margin-bottom:0.4rem; transition:color 0.3s; }
.stat-card-lbl { font-size:0.78rem; color:var(--text2); font-weight:500; text-transform:uppercase; letter-spacing:0.08em; }
.stat-card-sub { font-size:0.72rem; color:var(--text2); opacity:0.7; margin-top:0.25rem; }

/* features */
.features-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:1.25rem; margin-top:2rem; }
.feature-card {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:10px; padding:1.5rem;
  transition:all 0.2s, background 0.3s, border-color 0.3s;
}
.feature-card:hover { border-color:var(--teal); box-shadow:var(--shadow-md); transform:translateY(-3px); }
.feature-icon {
  width:44px; height:44px; border-radius:10px; background:var(--teal-l);
  display:flex; align-items:center; justify-content:center;
  margin-bottom:1rem; font-size:1.25rem; transition:background 0.3s;
}
.feature-title { font-size:0.95rem; font-weight:600; color:var(--navy); margin-bottom:0.5rem; transition:color 0.3s; }
.feature-desc { font-size:0.83rem; color:var(--text2); line-height:1.7; }

/* benchmark */
.benchmark-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1.25rem; margin-top:2rem; }
.task-card {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:10px; padding:1.5rem 1.25rem;
  position:relative; overflow:hidden; transition:all 0.2s, background 0.3s;
}
.task-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:linear-gradient(90deg, var(--teal), var(--navy));
}
.task-card:hover { box-shadow:var(--shadow-md); transform:translateY(-3px); border-color:var(--teal); }
.task-num { font-family:'DM Mono',monospace; font-size:0.65rem; color:var(--teal); letter-spacing:0.1em; margin-bottom:0.6rem; }
.task-title { font-size:0.93rem; font-weight:600; color:var(--navy); margin-bottom:0.6rem; line-height:1.3; transition:color 0.3s; }
.task-desc { font-size:0.8rem; color:var(--text2); line-height:1.65; }
.targets-section { margin-top:2.5rem; }
.targets-title {
  font-family:'DM Mono',monospace; font-size:0.72rem; letter-spacing:0.12em;
  text-transform:uppercase; color:var(--teal); margin-bottom:1rem;
}
.targets-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:1rem; }
.target-card {
  background:var(--bg2); border:1px solid var(--border);
  border-radius:10px; padding:1.25rem 1rem; text-align:center; transition:all 0.2s, background 0.3s;
}
.target-card:hover { border-color:var(--teal); background:var(--teal-l); }
.target-icon { font-size:1.5rem; margin-bottom:0.5rem; }
.target-name { font-size:0.88rem; font-weight:600; color:var(--navy); margin-bottom:0.3rem; transition:color 0.3s; }
.target-desc { font-size:0.75rem; color:var(--text2); line-height:1.5; }

/* access (full-bleed canvas page) */
#page-access {
  background:var(--canvas-bg);
  min-height:calc(100vh - 64px); position:relative; overflow:hidden;
  transition:background 0.3s;
}
#page-access::before {
  content:''; position:absolute; inset:0;
  background-image:
    linear-gradient(var(--hero-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--hero-grid) 1px, transparent 1px);
  background-size:40px 40px;
}
.access-layout {
  position:relative; z-index:1;
  display:flex; align-items:flex-start;
  max-width:1400px; margin:0 auto;
  min-height:calc(100vh - 64px);
}
.access-sidebar {
  width:240px; flex-shrink:0;
  position:sticky; top:64px;
  height:calc(100vh - 64px);
  overflow-y:auto;
  /* the canvas supplies the background; don't let --sidebar-bg paint over it */
  background:transparent;
  border-right:1px solid var(--canvas-line);
  padding:1.5rem 0 3rem;
  scrollbar-color:var(--canvas-line) transparent;
}
.access-sidebar::-webkit-scrollbar-thumb { background:var(--canvas-line); }
.access-right { scrollbar-color:var(--canvas-line) transparent; }
.access-right::-webkit-scrollbar-thumb { background:var(--canvas-line); }
.access-sidebar .sb-group-toggle { color:var(--canvas-text3); }
.access-sidebar .sb-group-toggle:hover { color:var(--canvas-title); }
.access-sidebar .sb-links li a { color:var(--canvas-text2); border-left-color:transparent; }
.access-sidebar .sb-links li a:hover { color:var(--canvas-title); background:var(--canvas-panel); border-left-color:var(--canvas-line); }
.access-sidebar .sb-links li a.active { color:var(--canvas-accent); background:var(--teal-l); border-left-color:var(--canvas-accent); }
.access-main { flex:1; min-width:0; padding:2.5rem 2.5rem 4rem; }
.access-right {
  width:210px; flex-shrink:0;
  position:sticky; top:64px;
  height:calc(100vh - 64px);
  overflow-y:auto;
  padding:1.75rem 1.25rem;
  border-left:1px solid var(--canvas-line);
}
.access-right .otp-label { color:var(--canvas-text3); }
.access-right .otp-links li a { color:var(--canvas-text2); }
.access-right .otp-links li a:hover { color:var(--canvas-title); }
.access-right .otp-links li a.active { color:var(--canvas-accent); border-left-color:var(--canvas-accent); }
.access-breadcrumb { color:var(--canvas-text2); margin-bottom:1.25rem; display:flex; align-items:center; gap:0.4rem; font-size:0.78rem; }
.access-breadcrumb a { color:var(--canvas-accent); cursor:pointer; }
.access-breadcrumb .sep { opacity:0.35; font-size:0.7rem; }
.access-inner .section-label { color:var(--canvas-accent); }
.access-inner .section-title { color:var(--canvas-title); }
.access-inner .section-lead { color:var(--canvas-text2); }
/* h3 rules inside the access page */
.access-inner .access-h3 {
  font-family:'DM Serif Display',Georgia,serif; font-size:1.05rem;
  color:var(--canvas-title); margin:2.5rem 0 1rem;
  padding-top:1rem; border-top:1px solid var(--canvas-line);
}
.access-buttons { display:flex; gap:1rem; flex-wrap:wrap; margin-top:2.5rem; }
.access-notice {
  margin-top:2.5rem; background:rgba(200,150,62,0.12);
  border:1px solid rgba(200,150,62,0.3); border-left:4px solid var(--canvas-gold);
  border-radius:10px; padding:1.25rem 1.5rem;
  display:flex; gap:1rem; align-items:flex-start;
}
.access-notice-icon { font-size:1.1rem; flex-shrink:0; margin-top:0.1rem; }
.access-notice-text { font-size:0.85rem; color:var(--canvas-text2); line-height:1.7; }
.access-notice-text strong { color:var(--canvas-gold); }

/* docs */
.docs-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:1.25rem; margin-top:2rem; }
.doc-card {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:10px; padding:1.5rem;
  display:flex; gap:1rem; align-items:flex-start;
  transition:all 0.2s, background 0.3s; cursor:pointer;
}
.doc-card:hover { border-color:var(--teal); box-shadow:var(--shadow); transform:translateY(-2px); }
.doc-icon {
  width:38px; height:38px; flex-shrink:0; border-radius:8px;
  background:var(--navy); color:#fff;
  display:flex; align-items:center; justify-content:center; font-size:1rem;
  transition:background 0.3s;
}
.doc-info { flex:1; }
.doc-title { font-size:0.9rem; font-weight:600; color:var(--navy); margin-bottom:0.35rem; transition:color 0.3s; }
.doc-desc { font-size:0.78rem; color:var(--text2); line-height:1.6; margin-bottom:0.6rem; }
.doc-link { font-size:0.75rem; color:var(--teal); font-weight:500; }

/* paper */
.paper-card {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:14px; padding:2rem; margin-top:2rem;
  position:relative; overflow:hidden;
  transition:background 0.3s, border-color 0.3s;
}
.paper-card::before {
  content:''; position:absolute; top:0; left:0; right:0; height:4px;
  background:linear-gradient(90deg, var(--teal), var(--navy), var(--gold));
}
.paper-title { font-family:'DM Serif Display',Georgia,serif; font-size:1.3rem; color:var(--navy); margin-bottom:0.6rem; line-height:1.35; transition:color 0.3s; }
.paper-authors { font-size:0.88rem; color:var(--text2); margin-bottom:0.3rem; }
.paper-venue { font-size:0.83rem; color:var(--teal); font-weight:500; margin-bottom:1.25rem; font-style:italic; }
.paper-abstract { font-size:0.9rem; color:var(--text2); line-height:1.8; margin-bottom:2rem; border-top:1px solid var(--border); padding-top:1.25rem; }
.paper-abstract strong { font-size:0.75rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--slate); display:block; margin-bottom:0.5rem; }
.citation-block {
  background:var(--bg2); border:1px solid var(--border); border-radius:10px;
  padding:1.25rem 1.5rem; font-family:'DM Mono',monospace; font-size:0.78rem;
  color:var(--text2); line-height:1.8; white-space:pre-wrap;
  margin-bottom:1.5rem; overflow-x:auto; transition:background 0.3s;
}
.paper-buttons { display:flex; gap:0.75rem; flex-wrap:wrap; }

/* contact */
.contact-grid { display:grid; grid-template-columns:1fr; gap:1.25rem; margin-top:2rem; }
.contact-card {
  background:var(--card-bg); border:1px solid var(--border);
  border-radius:10px; padding:1.5rem;
  transition:all 0.2s, background 0.3s;
}
.contact-card:hover { border-color:var(--teal); box-shadow:var(--shadow); }
.contact-card-icon { font-size:1.5rem; margin-bottom:0.75rem; }
.contact-card-title { font-size:0.92rem; font-weight:600; color:var(--navy); margin-bottom:0.5rem; transition:color 0.3s; }
.contact-card-body { font-size:0.82rem; color:var(--text2); line-height:1.7; }
.contact-card-body a { color:var(--teal); font-weight:500; }

/* in-page section heading anchors */
.anchor-heading {
  font-family:'DM Serif Display',Georgia,serif; font-size:1.1rem;
  color:var(--navy); margin:2.5rem 0 1rem;
  padding-top:1rem; border-top:1px solid var(--border);
  transition:color 0.3s;
}
.anchor-heading:first-of-type { margin-top:2rem; border-top:none; }

/* ── FOOTER ── */
footer { background:var(--footer-bg); color:rgba(255,255,255,0.55); padding:3rem 0 2rem; transition:background 0.3s; }
.footer-inner {
  max-width:1100px; margin:0 auto; padding:0 2rem;
  display:flex; justify-content:space-between; align-items:flex-start; gap:2rem; flex-wrap:wrap;
}
.footer-name { font-family:'DM Serif Display',Georgia,serif; font-size:1.1rem; color:#fff; margin-bottom:0.4rem; font-style:italic; }
.footer-inst { font-size:0.8rem; color:rgba(255,255,255,0.45); line-height:1.6; }
.footer-links { display:flex; gap:1.5rem; flex-wrap:wrap; align-items:center; }
.footer-links a { font-size:0.8rem; color:rgba(255,255,255,0.5); transition:color 0.15s; cursor:pointer; }
.footer-links a:hover { color:#3ecfc3; }
.footer-bottom {
  max-width:1100px; margin:2rem auto 0; padding:1.25rem 2rem 0;
  border-top:1px solid rgba(255,255,255,0.08);
  font-size:0.75rem; color:rgba(255,255,255,0.3);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:0.5rem;
}

/* ════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════ */
@media (max-width:1100px) {
  .right-panel { display:none; }
  .access-right { display:none; }
}
@media (max-width:900px) {
  .nav-links { display:none; }
  .nav-hamburger { display:flex; }
  .sidebar-toggle { display:flex; }

  /* sidebar becomes a slide-in drawer */
  .sidebar {
    position:fixed; top:64px; left:0; bottom:0;
    z-index:150; transform:translateX(-100%);
    width:260px; height:calc(100vh - 64px);
    box-shadow:var(--shadow-md);
  }
  .sidebar.open { transform:translateX(0); }
  .access-sidebar {
    position:fixed; top:64px; left:0; bottom:0;
    z-index:150; transform:translateX(-100%);
    width:260px; height:calc(100vh - 64px);
    background:#0b1525; box-shadow:var(--shadow-md);
  }
  .access-sidebar.open { transform:translateX(0); }
  .main-content { padding:2rem 1.25rem 3rem; }
  .access-main { padding:2rem 1.25rem 3rem; }

  .home-inner { grid-template-columns:1fr; }
  .hero-vis { display:none; }
  .overview-grid { grid-template-columns:1fr; }
  .features-grid { grid-template-columns:repeat(2,1fr); }
  .benchmark-grid { grid-template-columns:1fr; }
  .targets-grid { grid-template-columns:repeat(2,1fr); }
  .docs-grid { grid-template-columns:1fr; }
  .contact-grid { grid-template-columns:1fr; }
}
@media (max-width:600px) {
  .features-grid { grid-template-columns:1fr; }
  .targets-grid { grid-template-columns:repeat(2,1fr); }
  .overview-cards { grid-template-columns:1fr 1fr; }
  .paper-card { padding:1.5rem; }
  .footer-inner { flex-direction:column; gap:1.5rem; }
}