/* ═══════════════════════════════════════════════════════════════
   ArcGrid Internal Demo Suite — Shared Theme + Base Styles
   Three themes: dark (Void) / medium (Dusk) / light (Clean)
   Ported from surface/src/app/globals.css token system
═══════════════════════════════════════════════════════════════ */

/* ── Raw palette ─────────────────────────────────────────────── */
:root {
  --base-teal-400:  #4FD6BE;
  --base-teal-700:  #1E4A42;
  --base-teal-900:  #0E2B26;
  --base-teal-dark: #1A9E8C;
  --base-green:     #3FB950;
  --base-amber:     #E3B341;
  --base-red:       #F85149;
  --base-blue:      #58A6FF;
  --base-purple:    #BC8CFF;
  --base-orange:    #D29922;
  --base-orange-2:  #FAA61A;
}

/* ── DARK / Void ─────────────────────────────────────────────── */
[data-theme="dark"], :root {
  --sunken:         #0B0E14;
  --base:           #10141C;
  --raised:         #141926;
  --overlay:        #1C2235;
  --border-subtle:  #181E2A;
  --border-default: #1E2530;
  --border-strong:  #2A3342;
  --text-primary:   #D7DEE8;
  --text-secondary: #8B96A5;
  --text-tertiary:  #5C6673;
  --text-inverse:   #0B0E14;
  --accent:         var(--base-teal-400);
  --accent-bg:      rgba(79,214,190,.06);
  --accent-border:  rgba(79,214,190,.28);
  --glow:           0 0 14px -2px rgba(79,214,190,.35);
  --green:          var(--base-green);
  --green-bg:       rgba(63,185,80,.08);
  --green-border:   rgba(63,185,80,.28);
  --red:            var(--base-red);
  --amber:          var(--base-amber);
  --amber-bg:       rgba(227,179,65,.10);
  --amber-border:   rgba(227,179,65,.30);
  --shadow-raised:  0 2px 12px rgba(0,0,0,.4);
  --shadow-overlay: 0 8px 40px rgba(0,0,0,.65);
}

/* ── MEDIUM / Dusk (Discord dark) ───────────────────────────── */
[data-theme="medium"] {
  --sunken:         #1E1F22;
  --base:           #2B2D31;
  --raised:         #313338;
  --overlay:        #383A40;
  --border-subtle:  #27292C;
  --border-default: #3F4147;
  --border-strong:  #5C5F66;
  --text-primary:   #F2F3F5;
  --text-secondary: #B5BAC1;
  --text-tertiary:  #80848E;
  --text-inverse:   #1E1F22;
  --accent:         var(--base-teal-400);
  --accent-bg:      rgba(79,214,190,.11);
  --accent-border:  rgba(79,214,190,.35);
  --glow:           0 0 14px -2px rgba(79,214,190,.28);
  --green:          #57F287;
  --green-bg:       rgba(87,242,135,.09);
  --green-border:   rgba(87,242,135,.30);
  --red:            #ED4245;
  --amber:          #FAA61A;
  --amber-bg:       rgba(250,166,26,.10);
  --amber-border:   rgba(250,166,26,.30);
  --shadow-raised:  0 2px 8px rgba(0,0,0,.3);
  --shadow-overlay: 0 8px 32px rgba(0,0,0,.5);
}

/* ── LIGHT / Clean ───────────────────────────────────────────── */
[data-theme="light"] {
  --sunken:         #F2F3F5;
  --base:           #FFFFFF;
  --raised:         #F7F8FA;
  --overlay:        #FFFFFF;
  --border-subtle:  #E8EAED;
  --border-default: #D4D7DC;
  --border-strong:  #B9BBBE;
  --text-primary:   #1A1B1E;
  --text-secondary: #4E5058;
  --text-tertiary:  #86898F;
  --text-inverse:   #FFFFFF;
  --accent:         var(--base-teal-dark);
  --accent-bg:      rgba(26,158,140,.07);
  --accent-border:  rgba(26,158,140,.28);
  --glow:           0 0 12px -2px rgba(26,158,140,.25);
  --green:          #1A7A3F;
  --green-bg:       rgba(26,122,63,.08);
  --green-border:   rgba(26,122,63,.25);
  --red:            #C7312D;
  --amber:          #B07D14;
  --amber-bg:       rgba(176,125,20,.10);
  --amber-border:   rgba(176,125,20,.28);
  --shadow-raised:  0 2px 8px rgba(0,0,0,.08);
  --shadow-overlay: 0 8px 24px rgba(0,0,0,.14);
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--sunken);
  color: var(--text-primary);
  font-family: 'IBM Plex Sans', -apple-system, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3,h4 { font-weight: 700; line-height: 1.15; letter-spacing: -.015em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ── Layout ──────────────────────────────────────────────────── */
.wrap    { max-width: 1120px; margin: 0 auto; padding: 0 28px; }
.wrap-sm { max-width: 760px;  margin: 0 auto; padding: 0 28px; }

/* ── Top nav ─────────────────────────────────────────────────── */
.topnav {
  position: sticky; top: 0; z-index: 1000;
  display: flex; align-items: center;
  padding: 0 24px; height: 60px; gap: 16px;
  background: rgba(30,31,34,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.topnav-brand { display: flex; align-items: center; gap: 12px; flex: 1; }
.topnav-logo {
  display: inline-flex; align-items: center; gap: 9px;
  text-decoration: none; line-height: 0;
}
.topnav-logo img { display: block; }
.topnav-wordmark {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13px; letter-spacing: .02em; line-height: 1;
}
.topnav-wordmark .wm-arc  { font-weight: 700; color: #fff; }
.topnav-wordmark .wm-grid { font-weight: 400; color: rgba(255,255,255,0.45); }
.topnav-divider { width: 1px; height: 18px; background: rgba(255,255,255,0.2); flex-shrink: 0; }
.topnav-label {
  font-size: 0.68rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.topnav-right { display: flex; align-items: center; gap: 8px; }
.topnav-hub {
  font-size: 13px; font-weight: 500;
  color: rgba(255,255,255,0.5);
  padding: 5px 11px; border-radius: 6px;
  transition: color .15s, background .15s;
}
.topnav-hub:hover { color: #fff; background: rgba(255,255,255,0.07); }

/* ── Account dropdown (always dark — lives in dark topnav) ──── */
.ag-notif-btn {
  background: none; border: none; cursor: pointer;
  padding: 4px 6px; color: rgba(255,255,255,0.55);
  display: flex; align-items: center; line-height: 1;
  border-radius: 6px; transition: color .15s, background .15s;
}
.ag-notif-btn:hover { color: #fff; background: rgba(255,255,255,0.07); }
.ag-acct-wrap { position: relative; }
.ag-acct-btn {
  display: flex; align-items: center; gap: 7px;
  background: none; border: none; cursor: pointer;
  padding: 5px 10px; border-radius: 6px;
  color: rgba(255,255,255,0.55);
  transition: color .15s, background .15s;
  font-size: 13px; font-weight: 500; font-family: inherit; white-space: nowrap;
}
.ag-acct-btn:hover, .ag-acct-wrap.open .ag-acct-btn { color: #fff; background: rgba(255,255,255,0.07); }
.ag-acct-avatar {
  width: 24px; height: 24px; border-radius: 6px;
  display: block; flex-shrink: 0; object-fit: cover;
}
.ag-acct-caret { flex-shrink: 0; transition: transform .2s; }
.ag-acct-wrap.open .ag-acct-caret { transform: rotate(180deg); }
.ag-acct-drop {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  width: 220px; background: #2B2D31;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 200; overflow: hidden;
}
.ag-acct-wrap.open .ag-acct-drop { display: block; }
.ag-acct-drop-head { display: flex; align-items: center; gap: 9px; padding: 10px 12px 8px; }
.ag-acct-drop-avatar {
  width: 30px; height: 30px; border-radius: 7px;
  display: block; flex-shrink: 0; object-fit: cover;
}
.ag-acct-drop-name { font-size: 13px; font-weight: 600; color: #F2F3F5; }
.ag-acct-divider { height: 1px; background: rgba(255,255,255,0.07); margin: 2px 0; }
.ag-acct-drop-item {
  display: block; padding: 7px 12px; font-size: 13px; color: #B5BAC1;
  text-decoration: none; cursor: pointer; border-radius: 6px;
  transition: background .12s, color .12s;
}
.ag-acct-drop-item:hover { background: rgba(255,255,255,0.06); color: #F2F3F5; }
.ag-sign-out { color: #f87171; }
.ag-sign-out:hover { color: #fca5a5; background: rgba(248,113,113,0.07); }
.ag-acct-drop-section {
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: #80848E; margin-bottom: 6px;
}
.ag-acct-theme-row { display: flex; gap: 4px; }
.ag-acct-theme-btn {
  flex: 1; padding: 5px 0; border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.1);
  background: transparent; color: #80848E; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  font-family: inherit; transition: border-color .15s, background .15s, color .15s;
}
.ag-acct-theme-btn:hover { color: #F2F3F5; border-color: rgba(79,214,190,0.5); }
.ag-acct-theme-btn.active { border-color: rgba(79,214,190,0.7); background: rgba(79,214,190,0.1); color: #4FD6BE; }
.ag-theme-icon { font-size: 13px; line-height: 1; }
.ag-theme-label { font-size: 9px; font-family: 'IBM Plex Mono', monospace; }

/* ── Portals dropdown (topnav) ───────────────────────────────── */
.ag-portals-wrap { position: relative; }
.ag-portals-btn {
  display: flex; align-items: center; gap: 5px;
  background: none; border: none; cursor: pointer;
  padding: 5px 10px; border-radius: 6px;
  color: rgba(255,255,255,0.55);
  transition: color .15s, background .15s;
  font-size: 13px; font-weight: 500; font-family: inherit; white-space: nowrap;
}
.ag-portals-btn:hover, .ag-portals-wrap.open .ag-portals-btn { color: #fff; background: rgba(255,255,255,0.07); }
.ag-portals-caret { flex-shrink: 0; transition: transform .2s; }
.ag-portals-wrap.open .ag-portals-caret { transform: rotate(180deg); }
.ag-portals-drop {
  display: none; position: absolute; top: calc(100% + 8px); right: 0;
  width: 200px; background: #2B2D31;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px; box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  z-index: 200; overflow: hidden; padding: 4px;
}
.ag-portals-wrap.open .ag-portals-drop { display: block; }

/* ── Responsive nav ──────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Portals 3-col dropdown: don't let it overflow left on tablet */
  #ag-portals-drop { width: min(360px, calc(100vw - 16px)) !important; }
}
@media (max-width: 600px) {
  .topnav { padding: 0 12px; gap: 4px; }
  .topnav-right { gap: 2px; }
  /* Hide "INTERNAL PREVIEW" label on small screens */
  .topnav-divider, .topnav-label { display: none; }
  /* Hide text labels — leave only avatar/icon + caret */
  .ag-btn-label { display: none; }
  .ag-portals-btn { padding: 5px 7px; gap: 3px; }
  .ag-acct-btn { padding: 5px 7px; gap: 5px; }
  /* Portals 3-col: stack vertically */
  .ag-portals-cols { flex-direction: column !important; gap: 0 !important; }
  /* Pin all dropdowns to viewport, flush below the nav */
  .ag-portals-drop, .ag-acct-drop {
    position: fixed;
    top: 60px;
    left: 8px;
    right: 8px;
    width: auto !important;
  }
}

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 20px;
  background: var(--accent-bg); border: 1px solid var(--accent-border);
  font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--accent);
}
.badge::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

/* ── Sections ────────────────────────────────────────────────── */
.section { padding: 72px 0; }
.section + .section { border-top: 1px solid var(--border-subtle); }
.section-label {
  font-size: 11px; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 12px;
}
.section-heading { font-size: clamp(24px, 3.5vw, 36px); color: var(--text-primary); margin-bottom: 14px; }
.section-sub { font-size: 17px; color: var(--text-secondary); line-height: 1.6; max-width: 580px; }

/* ── Cards ───────────────────────────────────────────────────── */
.card {
  background: var(--base); border: 1px solid var(--border-default);
  border-radius: 10px; padding: 24px;
  transition: border-color 150ms, box-shadow 150ms;
}
.card:hover { border-color: var(--accent-border); box-shadow: var(--glow); }
.card-grid   { display: grid; gap: 16px; }
.card-grid-2 { grid-template-columns: repeat(2,1fr); }
.card-grid-3 { grid-template-columns: repeat(3,1fr); }
@media (max-width: 760px) {
  .hd-nav { display: none; }
  .card-grid-2, .card-grid-3 { grid-template-columns: 1fr; }
}

/* ── Stat row ────────────────────────────────────────────────── */
.stat-row { display: flex; gap: 40px; flex-wrap: wrap; }
.stat { flex: 1; min-width: 120px; }
.stat-num { font-size: 36px; font-weight: 700; color: var(--accent); line-height: 1; }
.stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }

/* ── Feature rows ────────────────────────────────────────────── */
.feature-row { display: flex; gap: 12px; align-items: flex-start; margin-bottom: 16px; }
.feature-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  flex-shrink: 0; margin-top: 8px;
}
.feature-text { font-size: 15px; color: var(--text-secondary); line-height: 1.6; }
.feature-text strong { color: var(--text-primary); font-weight: 600; }

/* ── Tags ────────────────────────────────────────────────────── */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 12px; font-weight: 500; padding: 4px 10px; border-radius: 6px;
  background: var(--raised); border: 1px solid var(--border-default);
  color: var(--text-secondary);
}

/* ── Page nav ────────────────────────────────────────────────── */
.page-nav {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 32px 0; border-top: 1px solid var(--border-subtle); margin-top: 40px;
  flex-wrap: wrap;
}
.page-nav a {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  padding: 10px 16px; border: 1px solid var(--border-default); border-radius: 8px;
  transition: border-color 150ms, color 150ms;
}
.page-nav a:hover { border-color: var(--accent-border); color: var(--text-primary); }
.page-nav .prev::before { content: '← '; }
.page-nav .next::after  { content: ' →'; }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 24px 0;
  font-size: 12px; color: var(--text-tertiary);
}
.site-footer .wrap {
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px; flex-wrap: wrap;
}
.site-footer a { color: var(--text-tertiary); transition: color 120ms; }
.site-footer a:hover { color: var(--text-secondary); }

/* ── Utility ─────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--border-subtle); margin: 40px 0; }
.mt-4  { margin-top: 16px; }
.mt-6  { margin-top: 24px; }
.mt-8  { margin-top: 32px; }
.mt-12 { margin-top: 48px; }