/* ═══════════════════════════════════════════════════
   GitLearn — Design System
   Architect's Blueprint palette — Pankit Panchal
   https://pankitpanchal.vercel.app
═══════════════════════════════════════════════════ */

:root {
  --bg:         #05050A;
  --bg-card:    #0C0C15;
  --bg-card-2:  #111120;
  --amber:      #F5A623;
  --amber-dim:  rgba(245,166,35,0.10);
  --amber-grid: rgba(245,166,35,0.042);
  --amber-glow: rgba(245,166,35,0.25);
  --text-hi:    #F0EDE8;
  --text-cool:  #D0D8F0;
  --text-mid:   #A8ADBC;
  --text-lo:    rgba(168,173,188,0.5);
  --border:     rgba(245,166,35,0.18);
  --border-sub: rgba(255,255,255,0.06);
  --ff-body:    'Sora', system-ui, sans-serif;
  --ff-mono:    'DM Mono', 'Consolas', 'Cascadia Code', monospace;
  --ff-display: 'Unbounded', sans-serif;
}

/* ── Light theme ── */
[data-theme="light"] {
  --bg:         #F8F7F2;
  --bg-card:    #FFFFFF;
  --bg-card-2:  #EDECE5;
  --amber:      #C47D0E;
  --amber-dim:  rgba(196,125,14,0.10);
  --amber-grid: rgba(196,125,14,0.055);
  --amber-glow: rgba(196,125,14,0.20);
  --text-hi:    #1A1A2E;
  --text-cool:  #2D3561;
  --text-mid:   #4A5068;
  --text-lo:    rgba(74,80,104,0.55);
  --border:     rgba(196,125,14,0.28);
  --border-sub: rgba(0,0,0,0.09);
}

/* ── Header flow link ── */
.header-flow-link {
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.22rem 0.65rem;
  border-radius: 0.25rem;
  border: 1px solid var(--border);
  color: var(--text-mid);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  display: none;
}
@media (min-width: 640px) {
  .header-flow-link { display: inline !important; }
}
.header-flow-link:hover {
  color: var(--amber) !important;
  border-color: var(--amber) !important;
  background: var(--amber-dim) !important;
}

/* ── Theme transition ── */
body, header, #sidebar, .code-block, .callout,
.cmd-card, .example-card, .option-card, #scroll-top {
  transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

/* ── Blueprint grid background ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(var(--amber-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--amber-grid) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  z-index: 0;
}

/* ── Scrollbar ── */
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track  { background: var(--bg); }
::-webkit-scrollbar-thumb  { background: var(--border); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--amber); }

/* Ensure hidden class works before Tailwind CDN processes it */
.hidden { display: none; }

/* ── Header ── */
header.sticky,
header[style*="height:60px"] {
  background: rgba(5,5,10,0.92) !important;
  backdrop-filter: blur(24px) !important;
  -webkit-backdrop-filter: blur(24px) !important;
  border-bottom-color: var(--border-sub) !important;
  transform: translateZ(0);
}
[data-theme="light"] header.sticky,
[data-theme="light"] header[style*="height:60px"] {
  background: rgba(248,247,242,0.95) !important;
}
header button { color: var(--text-mid) !important; }
header button:hover { background: var(--amber-dim) !important; }
header svg { stroke: var(--text-mid) !important; }
header .text-gray-400, header .text-gray-500 { color: var(--text-lo) !important; }

/* ── Sidebar nav — fixed px so font-size control doesn't affect it ── */
#sidebar .nav-section-label { font-size: 11px !important; }
#sidebar .nav-link           { font-size: 14px !important; }

/* ── Sidebar ── */
#sidebar {
  background: rgba(5,5,10,0.96) !important;
  border-right-color: var(--border-sub) !important;
  display: flex !important;
  flex-direction: column !important;
}
[data-theme="light"] #sidebar {
  background: rgba(248,247,242,0.98) !important;
}
#sidebar.open {
  background: var(--bg) !important;
  border-right-color: var(--border-sub) !important;
}
.sidebar-credit {
  padding: 0.75rem 1rem 0.6rem;
  border-top: 1px solid var(--border-sub);
}
.sidebar-credit a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-family: var(--ff-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mid) !important;
  text-decoration: none;
  transition: color 0.15s;
}
.sidebar-credit a:hover { color: var(--amber) !important; }

/* ── Main ── */
main { position: relative; z-index: 1; }

/* ── Typography ── */
h1, h2, h3, h4 { color: var(--text-hi); font-family: var(--ff-body); }
p, li          { color: var(--text-mid); }
strong         { color: var(--text-hi) !important; }
a              { color: var(--text-mid); text-decoration: none; }
a:hover        { color: var(--amber); }

/* ── Inline code ── */
code {
  background: var(--amber-dim) !important;
  color: var(--amber) !important;
  border-radius: 2px !important;
  font-family: var(--ff-mono) !important;
}

/* ── Font size controls ── */
html { font-size: 15px; }
.fs-controls { display: flex; align-items: center; gap: 1px; }
@media (max-width: 639px) { .fs-controls { display: none; } }
.fs-btn {
  font-family: var(--ff-mono); font-size: 0.95rem; font-weight: 700;
  width: 26px; height: 26px; border-radius: 0.25rem;
  border: 1px solid transparent; color: var(--text-lo);
  background: transparent; cursor: pointer; transition: all 0.15s;
  display: flex; align-items: center; justify-content: center;
  line-height: 1; flex-shrink: 0;
}
.fs-btn:hover { color: var(--text-mid); background: var(--amber-dim); border-color: rgba(245,166,35,0.25); }
.fs-btn:disabled { opacity: 0.3; cursor: default; pointer-events: none; }
.fs-size {
  font-family: var(--ff-mono); font-size: 0.62rem; color: var(--text-lo);
  min-width: 30px; text-align: center; user-select: none;
}

/* ── Keyboard tag ── */
kbd {
  background: var(--bg-card-2) !important;
  border-color: var(--border) !important;
  border-bottom-color: var(--amber) !important;
  color: var(--text-mid) !important;
}

/* ── Search input ── */
input#search {
  background: var(--bg-card) !important;
  border-color: var(--border) !important;
  color: var(--text-hi) !important;
}
input#search::placeholder { color: var(--text-lo) !important; }
input#search:focus {
  border-color: var(--amber) !important;
  box-shadow: 0 0 0 2px rgba(245,166,35,0.15) !important;
}
.search-highlight { background: var(--amber) !important; color: var(--bg) !important; border-radius: 2px; }

/* ── Nav links ── */
.nav-section-label   { color: var(--text-mid) !important; }
.nav-link            { color: var(--text-cool) !important; }
.nav-link:hover      { background: var(--amber-dim) !important; color: var(--text-hi) !important; }
.nav-link.active     { background: var(--amber-dim) !important; color: var(--amber) !important; }
.nav-link.sub        { color: var(--text-mid) !important; }
.nav-link.sub.active { color: var(--amber) !important; }

/* ── Code blocks ── */
.code-block {
  background: var(--bg-card-2) !important;
  border-color: var(--border) !important;
}
.code-tabs,
.code-tabs.single {
  background: var(--bg-card) !important;
  border-bottom-color: var(--border) !important;
}
.tab-btn            { color: var(--text-lo) !important; background: transparent !important; }
.tab-btn:hover      { background: var(--amber-dim) !important; color: var(--text-mid) !important; }
.tab-btn.active     { background: var(--bg-card-2) !important; color: var(--amber) !important; box-shadow: none !important; }
.copy-btn           { background: var(--bg-card) !important; border-color: var(--border) !important; color: var(--text-lo) !important; }
.copy-btn:hover     { background: var(--amber-dim) !important; color: var(--amber) !important; border-color: var(--amber) !important; }
.code-block pre     { color: var(--text-cool) !important; }

/* ── Callouts ── */
.callout-warning { background: rgba(245,158,11,0.08) !important; color: var(--text-mid) !important; border-left-color: var(--amber) !important; }
.callout-tip     { background: rgba(99,102,241,0.08) !important; color: var(--text-mid) !important; border-left-color: #818cf8 !important; }
.callout-success { background: rgba(16,185,129,0.08) !important; color: var(--text-mid) !important; border-left-color: #34d399 !important; }
.callout-danger  { background: rgba(239,68,68,0.08) !important; color: var(--text-mid) !important; border-left-color: #f87171 !important; }

/* ── Tables ── */
th, td          { border-color: var(--border-sub) !important; color: var(--text-mid) !important; }
thead tr        { background: var(--bg-card) !important; }
tbody tr        { background: transparent !important; }
tbody tr:nth-child(even) { background: var(--bg-card) !important; }
tbody tr:nth-child(odd)  { background: var(--bg-card-2) !important; }

/* ── Divider ── */
hr.divider { border-top-color: var(--border-sub) !important; }

/* ── Footer ── */
footer {
  color: var(--text-lo) !important;
  border-top-color: var(--border-sub) !important;
}
footer a { color: var(--text-lo) !important; }
footer a:hover { color: var(--amber) !important; }

/* ── Command comparison cards (comparisons.html) ── */
.cmd-card          { background: var(--bg-card) !important; border-color: var(--border) !important; }
.cmd-card.blue     { border-color: rgba(96,165,250,0.3) !important; }
.cmd-card.green    { border-color: rgba(52,211,153,0.3) !important; }
.cmd-card.purple   { border-color: rgba(167,139,250,0.3) !important; }
.cmd-card.orange   { border-color: rgba(251,191,36,0.3) !important; }
.cmd-card.red      { border-color: rgba(248,113,113,0.3) !important; }
.cmd-card.blue   .cmd-name { color: #60a5fa !important; }
.cmd-card.green  .cmd-name { color: #34d399 !important; }
.cmd-card.purple .cmd-name { color: #a78bfa !important; }
.cmd-card.orange .cmd-name { color: var(--amber) !important; }
.cmd-card.red    .cmd-name { color: #f87171 !important; }
.cmd-card.gray   .cmd-name { color: var(--text-hi) !important; }
.cmd-tagline    { color: var(--text-hi) !important; }
.cmd-body       { color: var(--text-mid) !important; }
.cmd-when       { background: rgba(255,255,255,0.04) !important; }
.cmd-when strong { color: var(--text-lo) !important; }
.vs-badge       { background: var(--amber-dim) !important; color: var(--amber) !important; }
.group-title    { color: var(--text-hi) !important; }

/* ── Deploy page cards (deploy.html) ── */
.option-card           { border-color: var(--border) !important; }
.option-header         { border-bottom-color: var(--border-sub) !important; background: var(--bg-card) !important; }
.option-title          { color: var(--text-hi) !important; }
.option-subtitle       { color: var(--text-mid) !important; }
.badge-free            { background: rgba(52,211,153,0.12) !important; color: #34d399 !important; }
.badge-easy            { background: rgba(96,165,250,0.12) !important; color: #60a5fa !important; }
.badge-recommended     { background: var(--amber-dim) !important; color: var(--amber) !important; }
.step-num              { background: var(--amber) !important; color: var(--bg) !important; }
.step-body             { color: var(--text-mid) !important; }

/* ── Example cards (examples.html) ── */
.example-card          { background: var(--bg-card) !important; border-color: var(--border) !important; }
.example-card:hover    { border-color: var(--amber) !important; box-shadow: 0 4px 24px rgba(245,166,35,0.12) !important; }
.example-card .card-title { color: var(--text-hi) !important; }
.example-card .card-desc  { color: var(--text-mid) !important; }
.badge-blue   { background: rgba(96,165,250,0.12) !important; color: #60a5fa !important; }
.badge-green  { background: rgba(52,211,153,0.12) !important; color: #34d399 !important; }
.badge-purple { background: rgba(167,139,250,0.12) !important; color: #a78bfa !important; }
.badge-red    { background: rgba(248,113,113,0.12) !important; color: #f87171 !important; }

/* ── Section / page titles ── */
.section-title,
.section-title.blue,
.section-title.green,
.section-title.purple,
.section-title.orange { color: var(--amber) !important; border-color: var(--amber) !important; }
.subsection-title     { color: var(--text-hi) !important; }
.page-title           { color: var(--amber) !important; border-color: var(--amber) !important; }
.group-title          { color: var(--text-hi) !important; }

/* ── Info/context boxes ── */
[style*="background:#f3f4f6"],
[style*="background: #f3f4f6"] { background: var(--bg-card) !important; }

/* ── Scroll to top ── */
#scroll-top {
  position: fixed; bottom: 36px; right: 36px; z-index: 9999;
  width: 44px; height: 44px; border-radius: 2px;
  background: rgba(5,5,10,0.92);
  border: 1px solid rgba(245,166,35,0.35);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: #F5A623;
  opacity: 0; pointer-events: none;
  transition: opacity .25s ease, border-color .2s, transform .2s, box-shadow .2s;
}
[data-theme="light"] #scroll-top { background: rgba(248,247,242,0.92); color: var(--amber); }
#scroll-top.visible { opacity: 1; pointer-events: auto; }
#scroll-top:hover {
  border-color: #F5A623;
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(245,166,35,0.25);
}

/* ── Tailwind utility overrides ── */
.bg-white    { background: var(--bg-card) !important; }
.bg-gray-50,
.bg-gray-100 { background: var(--bg-card-2) !important; }
.border-gray-200,
.border-gray-300 { border-color: var(--border-sub) !important; }
.text-gray-900,
.text-gray-800,
.text-gray-700 { color: var(--text-hi) !important; }
.text-gray-600,
.text-gray-500 { color: var(--text-mid) !important; }
.text-gray-400 { color: var(--text-lo) !important; }
.text-blue-600 { color: var(--amber) !important; }
.hover\:bg-gray-100:hover { background: var(--amber-dim) !important; }

/* ── Light mode adjustments ── */
[data-theme="light"] .callout-warning { background: rgba(245,158,11,0.10) !important; }
[data-theme="light"] .callout-tip     { background: rgba(99,102,241,0.10) !important; }
[data-theme="light"] .callout-success { background: rgba(16,185,129,0.10) !important; }
[data-theme="light"] .callout-danger  { background: rgba(239,68,68,0.10) !important; }
[data-theme="light"] .cmd-when        { background: rgba(0,0,0,0.05) !important; }