/* Font import, theme variables, base element resets, nav bar. */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,700;1,400&display=swap');

:root {
  --bg: #080807;
  --bg2: #0d0d0b;
  --bg3: #121210;
  --line: #1a1a15;
  --dim: #252520;
  --muted: #42423a;
  --secondary: #6a6a55;
  --primary: #c0c0a0;
  --accent: #d4c46a;
  --green: #6ab890;
  --red: #b86a6a;
  --blue: #6a90b8;
  --purple: #906ab8;
  --orange: #b8906a;
  --font: 'JetBrains Mono', monospace;
  --tag-read-bg: #1e1d08; --tag-read-border: #2e2c10;
  --tag-thesis-bg: #08101e; --tag-thesis-border: #10182e;
  --tag-trade-bg: #081808; --tag-trade-border: #102810;
  --tag-task-bg: #1a0e1e; --tag-task-border: #2a1830;
  --type-read-bg: #1e1d08;
  --type-thesis-bg: #08101e;
  --type-trade-bg: #081808;
  --type-task-bg: #1a0e1e;
  --act-l1: #1e2a1a; --act-l2: #2d4a26; --act-l3: #4a7a3a;
  --overlay: rgba(0,0,0,0.82);
  --overlay2: rgba(0,0,0,0.88);
  --shadow: rgba(0,0,0,0.4);
}

body.light {
  --bg: #f5f2eb;
  --bg2: #ede9e0;
  --bg3: #e6e1d6;
  --line: #d4cfc3;
  --dim: #c8c2b4;
  --muted: #7a7468;
  --secondary: #4e4838;
  --primary: #1a1610;
  --accent: #6a5428;
  --green: #2a6a48;
  --red: #7a2a2a;
  --blue: #2a4a7a;
  --purple: #4a2a7a;
  --orange: #7a4a2a;
  --tag-read-bg: #e8e2d4; --tag-read-border: #c8c0a0;
  --tag-thesis-bg: #d8e0ea; --tag-thesis-border: #a0b0c8;
  --tag-trade-bg: #d8e8dc; --tag-trade-border: #a0c0a8;
  --tag-task-bg: #e0d8ea; --tag-task-border: #b8a0c8;
  --type-read-bg: #e8e2d4;
  --type-thesis-bg: #d8e0ea;
  --type-trade-bg: #d8e8dc;
  --type-task-bg: #e0d8ea;
  --act-l1: #c8dcc0; --act-l2: #a8c89a; --act-l3: #7ab070;
  --overlay: rgba(210,205,195,0.92);
  --overlay2: rgba(210,205,195,0.92);
  --shadow: rgba(0,0,0,0.12);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--dim);
  color: var(--muted);
  padding: 3px 9px;
  font-family: var(--font);
  font-size: 10px;
  cursor: pointer;
  transition: all 0.12s;
  letter-spacing: 0.06em;
  user-select: none;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); }

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--primary);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.6;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* NAV */
.nav {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: var(--bg2);
  flex-shrink: 0;
  padding: 0 16px;
  height: 40px;
  gap: 0;
}

.nav-logo {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
  margin-right: 20px;
  flex-shrink: 0;
}

.nav-tabs { display: flex; gap: 0; flex: 1; overflow-x: auto; scrollbar-width: none; }
.nav-tabs::-webkit-scrollbar { display: none; }
.nav-tab { flex-shrink: 0; }

.nav-tab {
  padding: 0 14px;
  height: 40px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.12s;
  white-space: nowrap;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  user-select: none;
}

.nav-tab:hover { color: var(--secondary); }
.nav-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.nav-badge {
  background: var(--dim);
  color: var(--secondary);
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 2px;
  min-width: 16px;
  text-align: center;
}

.nav-tab.active .nav-badge { background: #2a2a18; color: var(--accent); }
body.light .nav-tab.active .nav-badge { background: var(--accent); color: #f5f2eb; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  color: var(--muted);
  flex-shrink: 0;
}

.nav-action {
  background: transparent;
  border: 1px solid var(--dim);
  color: var(--muted);
  padding: 3px 9px;
  font-family: var(--font);
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.12s;
}
.nav-action:hover { border-color: var(--accent); color: var(--accent); }

.status-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }