/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --accent: #D97757;
  --accent-dim: rgba(217,119,87,0.12);
  --accent-hover: #E8956D;
  --bg: #0A0A0F;
  --bg2: #111118;
  --bg3: #1A1A24;
  --glass: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --text: #F0EDE8;
  --text2: #8A8580;
  --text3: #4A4845;
  --font: 'Space Grotesk', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
  --radius: 10px;
  --panel-w: 240px;
  --topbar-h: 48px;
  --transition: 0.25s ease;
}

html.light {
  --bg: #F5F3EF;
  --bg2: #ECEAE6;
  --bg3: #E0DED9;
  --glass: rgba(0,0,0,0.03);
  --glass-border: rgba(0,0,0,0.08);
  --text: #1A1814;
  --text2: #6A6560;
  --text3: #9A9590;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ===== BACKGROUND ===== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ===== TOPBAR ===== */
#topbar {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  position: relative;
  z-index: 100;
  flex-shrink: 0;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-icon { font-size: 20px; }
.brand-name { color: var(--text); }
.accent { color: var(--accent); }

.version-badge {
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(217,119,87,0.2);
}

.panel-toggle, .icon-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  font-size: 12px;
  font-family: var(--font);
  transition: background var(--transition), color var(--transition);
}

.panel-toggle:hover, .icon-btn:hover {
  background: var(--glass);
  color: var(--accent);
}

/* ===== LAYOUT ===== */
#layout {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ===== PANELS ===== */
.panel {
  width: 0;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(10,10,15,0.7);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--glass-border);
  transition: width var(--transition);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.panel.open { width: var(--panel-w); overflow-y: auto; }

#right-panel {
  border-right: none;
  border-left: 1px solid var(--glass-border);
}

.panel-header {
  padding: 14px 14px 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.panel-section-title {
  padding: 10px 14px 4px;
  font-size: 10px;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

/* ===== SEARCH ===== */
.search-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 10px 8px;
  padding: 7px 10px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  flex-shrink: 0;
}

.search-wrap svg { color: var(--text3); flex-shrink: 0; }

.search-wrap input {
  background: none;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font);
  width: 100%;
}

.search-wrap input::placeholder { color: var(--text3); }

/* ===== TOOL ITEMS ===== */
.tool-list { display: flex; flex-direction: column; padding: 0 6px; }

.tool-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 12px;
  color: var(--text2);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-item:hover {
  background: var(--accent-dim);
  color: var(--accent);
}

.tool-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===== MAIN CONTENT ===== */
#main-content {
  flex: 1;
  overflow-y: auto;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ===== HERO ===== */
.hero { text-align: center; padding: 16px 0 8px; }

.hero h2 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 8px;
}

.hero p {
  font-size: 14px;
  color: var(--text2);
}

/* ===== CARDS GRID ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
  align-items: start;
}

/* ===== BIG CARD ===== */
.big-card {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color var(--transition);
}

.big-card:hover { border-color: rgba(217,119,87,0.25); }

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  border-bottom: 1px solid var(--glass-border);
}

.card-icon { font-size: 24px; }

.card-header h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 2px;
}

.card-header p {
  font-size: 11px;
  color: var(--text2);
}

.card-header > div { flex: 1; }

.card-expand-btn {
  background: none;
  border: none;
  color: var(--text3);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  transition: transform var(--transition);
}

.card-body { padding: 16px 18px; display: flex; flex-direction: column; gap: 16px; }
.card-body.collapsed { display: none; }

/* ===== TOOL STACK ===== */
.tool-stack {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stack-title {
  font-size: 10px;
  font-weight: 600;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0 4px 6px;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 4px;
}

.stack-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  transition: background var(--transition);
  font-size: 13px;
}

.stack-item:hover { background: var(--accent-dim); }
.stack-item:hover .launch { color: var(--accent); transform: translateX(3px); }

.stack-item > span:first-child { font-size: 18px; flex-shrink: 0; }

.stack-item-name { font-size: 13px; font-weight: 500; }
.stack-item-desc { font-size: 11px; color: var(--text2); }

.launch {
  margin-left: auto;
  color: var(--text3);
  font-size: 14px;
  transition: color var(--transition), transform var(--transition);
  flex-shrink: 0;
}

/* ===== INTEL CARD ===== */
.intel-search-wrap {
  display: flex;
  gap: 8px;
}

.intel-search-wrap input {
  flex: 1;
  padding: 10px 14px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color var(--transition);
}

.intel-search-wrap input:focus { border-color: var(--accent); }

.intel-search-wrap button {
  padding: 10px 16px;
  background: var(--accent);
  color: #0A0A0F;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition);
}

.intel-search-wrap button:hover { background: var(--accent-hover); }

.api-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.badge {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 20px;
  background: var(--bg3);
  color: var(--text2);
  border: 1px solid var(--glass-border);
  font-family: var(--mono);
}

.full-launch-btn {
  display: block;
  text-align: center;
  padding: 10px;
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition);
}

.full-launch-btn:hover {
  background: var(--accent-dim);
  border-color: rgba(217,119,87,0.3);
}

/* ===== COMING SOON ===== */
.coming-soon {
  text-align: center;
  padding: 24px;
  color: var(--text3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.coming-soon span { font-size: 28px; }
.coming-soon p { font-size: 14px; font-weight: 500; color: var(--text2); }
.coming-soon small { font-size: 12px; max-width: 200px; line-height: 1.5; }

/* ===== RIGHT PANEL CONTENT ===== */
#quick-notes {
  margin: 0 10px;
  width: calc(100% - 20px);
  height: 120px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 10px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font);
  resize: none;
  outline: none;
  transition: border-color var(--transition);
}

#quick-notes:focus { border-color: var(--accent); }

.small-btn {
  margin: 4px 10px 0;
  padding: 5px 12px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  color: var(--text2);
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.small-btn:hover { background: var(--accent-dim); color: var(--accent); }

/* ===== CONVERTER ===== */
.converter-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 0 10px;
}

.converter-wrap input,
.converter-wrap select {
  padding: 7px 10px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 7px;
  color: var(--text);
  font-size: 12px;
  font-family: var(--font);
  outline: none;
  width: 100%;
}

.converter-wrap span {
  text-align: center;
  color: var(--text3);
  font-size: 12px;
}

.conv-result {
  text-align: center;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
  padding: 6px;
  background: var(--accent-dim);
  border-radius: 6px;
}

/* ===== TIMER ===== */
.timer-wrap {
  padding: 0 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

#timer-display {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

.timer-btns {
  display: flex;
  gap: 6px;
}

/* ===== GLOSSARY MODAL ===== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden { display: none; }

.modal-box {
  background: var(--bg2);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  width: 500px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
  font-weight: 600;
}

.modal-header button {
  background: none;
  border: none;
  color: var(--text2);
  cursor: pointer;
  font-size: 16px;
}

#glossary-search {
  margin: 12px 16px;
  padding: 8px 12px;
  background: var(--bg3);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text);
  font-size: 13px;
  font-family: var(--font);
  outline: none;
}

#glossary-search:focus { border-color: var(--accent); }

#glossary-list {
  overflow-y: auto;
  padding: 0 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.glossary-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 12px;
  background: var(--bg3);
  border-radius: 8px;
  border: 1px solid var(--glass-border);
}

.g-term {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.g-def {
  font-size: 12px;
  color: var(--text2);
  line-height: 1.5;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg3); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .panel.open { width: 100%; position: absolute; height: 100%; z-index: 50; }
  .cards-grid { grid-template-columns: 1fr; }
  .hero h2 { font-size: 24px; }
}