/* ─── Variables ──────────────────────────────────────────────────────────────── */
:root {
  --bg:          #1a1209;
  --bg-panel:    #241a0d;
  --bg-card:     #2e2010;
  --bg-hover:    #3a2a14;
  --border:      #5a3e1e;
  --border-soft: #3a2a14;
  --gold:        #c8a44a;
  --gold-light:  #e0bc6a;
  --text:        #d4b896;
  --text-muted:  #8a7060;
  --text-header: #f0d080;
  --done-text:   #5a7a4a;
  --done-bg:     #1a2a14;

  /* Difficulty colours */
  --easy:   #4caf50;
  --medium: #ffc107;
  --hard:   #ff7043;
  --elite:  #ef5350;
  --master: #ab47bc;

  --radius: 6px;
  --sidebar-width: 220px;
  --transition: 150ms ease;
}

/* ─── Reset / Base ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-light); text-decoration: underline; }

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.site-header {
  background: var(--bg-panel);
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-title {
  font-size: 1.15rem;
  color: var(--text-header);
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.league-bar {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0.4rem 1.25rem 0.55rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-top: 1px solid var(--border-soft);
}

.league-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--gold-light);
  letter-spacing: 0.03em;
}

.league-icon { margin-right: 0.35rem; }

.league-countdown {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.88rem;
}

.countdown-label {
  color: var(--text-muted);
  font-weight: 600;
}

.countdown-value {
  font-weight: 700;
  color: var(--easy);
  font-variant-numeric: tabular-nums;
  min-width: 10ch;
  display: inline-block;
}

.league-countdown.countdown-warning .countdown-value { color: var(--medium); }
.league-countdown.countdown-urgent  .countdown-value { color: var(--elite);  }
.league-countdown.countdown-ended   .countdown-value { color: var(--text-muted); font-weight: 400; }

.header-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ─── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--gold);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); border-color: var(--gold); color: var(--gold-light); }

.btn-danger {
  background: var(--bg-card);
  color: #ef9a9a;
  border-color: #5a2020;
}
.btn-danger:hover { background: #3a1818; border-color: #ef5350; }

.btn-block { width: 100%; justify-content: center; }

/* ─── Layout ─────────────────────────────────────────────────────────────────── */
main {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: 1rem 1.25rem;
}

.tracker-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 1.25rem;
  align-items: start;
}

/* ─── Sidebar ────────────────────────────────────────────────────────────────── */
.sidebar {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem;
  position: sticky;
  top: 70px;
}

.sidebar-toggle {
  display: none;
  width: 100%;
  background: var(--bg-card);
  color: var(--gold);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.filter-group {
  margin-bottom: 1rem;
}

.filter-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

input[type="search"],
select {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.4rem 0.6rem;
  font-size: 0.88rem;
  outline: none;
  transition: border-color var(--transition);
}
input[type="search"]:focus,
select:focus { border-color: var(--gold); }

select option { background: var(--bg-card); }

/* ─── Area unlock list ───────────────────────────────────────────────────────── */
.area-unlock-list {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.area-unlock-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  background: var(--bg-card);
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.area-unlock-row:hover { background: var(--bg-hover); color: var(--text); }

.area-unlock-row.area-unlocked {
  border-color: var(--easy);
  color: var(--text);
}

.area-unlock-row input[type="checkbox"] {
  width: 14px;
  height: 14px;
  accent-color: var(--easy);
  flex-shrink: 0;
  cursor: pointer;
}

.area-unlock-name { flex: 1; }

/* ─── Chips ──────────────────────────────────────────────────────────────────── */
.chip-group { display: flex; gap: 0.35rem; flex-wrap: wrap; }

.chip {
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.82rem;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}
.chip:hover { background: var(--bg-hover); }
.chip.active { background: var(--gold); color: var(--bg); border-color: var(--gold); font-weight: 700; }

/* ─── Progress ───────────────────────────────────────────────────────────────── */
.progress-section {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  margin-bottom: 1rem;
}

.progress-overall {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

#progress-text {
  font-weight: 600;
  color: var(--text-header);
  font-size: 0.95rem;
  white-space: nowrap;
}

.progress-bar-wrap {
  flex: 1;
  min-width: 120px;
  height: 10px;
  background: var(--bg-card);
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  border-radius: 999px;
  transition: width 0.4s ease;
}

.progress-by-diff {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
}

.diff-stat {
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 600;
  background: var(--bg-card);
  border: 1px solid currentColor;
  opacity: 0.85;
}

/* ─── Task list header ───────────────────────────────────────────────────────── */
.task-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.6rem;
  gap: 0.75rem;
  flex-wrap: wrap;
}

#task-count-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.sort-controls {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.sort-controls select { width: auto; padding: 0.3rem 0.5rem; }

/* ─── Task rows ──────────────────────────────────────────────────────────────── */
#task-list { display: flex; flex-direction: column; gap: 0.4rem; }

.task-row {
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  transition: background var(--transition), border-color var(--transition);
  border-left: 3px solid transparent;
}
.task-row:hover { background: var(--bg-hover); border-color: var(--border); }

.task-row.task-done {
  background: var(--done-bg);
  border-color: #2a3a24;
  opacity: 0.65;
}
.task-row.task-done .task-name { text-decoration: line-through; color: var(--done-text); }

/* Difficulty accent on left border */
.task-row.diff-easy   { border-left-color: var(--easy); }
.task-row.diff-medium { border-left-color: var(--medium); }
.task-row.diff-hard   { border-left-color: var(--hard); }
.task-row.diff-elite  { border-left-color: var(--elite); }
.task-row.diff-master { border-left-color: var(--master); }

/* Checkbox */
.task-check {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  padding-top: 0.15rem;
}
.task-check input[type="checkbox"] { display: none; }

.checkmark {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.task-check input:checked + .checkmark {
  background: var(--easy);
  border-color: var(--easy);
}
.task-check input:checked + .checkmark::after {
  content: "✓";
  color: #fff;
  font-size: 0.8rem;
  line-height: 1;
  font-weight: 700;
}

/* Task info */
.task-info { flex: 1; min-width: 0; }

.task-name {
  font-weight: 600;
  color: var(--text-header);
  font-size: 0.95rem;
}

.task-wiki-link {
  margin-left: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  vertical-align: middle;
}
.task-wiki-link:hover { color: var(--gold); }

.task-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.task-meta {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
  margin-top: 0.3rem;
  align-items: center;
}

.tag {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  border: 1px solid currentColor;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tag-diff.diff-easy   { color: var(--easy);   }
.tag-diff.diff-medium { color: var(--medium);  }
.tag-diff.diff-hard   { color: var(--hard);   }
.tag-diff.diff-elite  { color: var(--elite);  }
.tag-diff.diff-master { color: var(--master); }

.tag-area { color: #80b4d4; border-color: #80b4d4; }

.task-points {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--gold);
  white-space: nowrap;
}

/* ─── Difficulty colour helpers (shared) ─────────────────────────────────────── */
.diff-easy   { color: var(--easy);   }
.diff-medium { color: var(--medium); }
.diff-hard   { color: var(--hard);  }
.diff-elite  { color: var(--elite); }
.diff-master { color: var(--master); }

/* ─── How To button ──────────────────────────────────────────────────────────── */
.btn-howto {
  margin-left: auto;
  padding: 0.15rem 0.55rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--transition), border-color var(--transition);
  flex-shrink: 0;
}
.btn-howto:hover { background: var(--bg-hover); border-color: var(--gold); }

/* ─── Guide panel ─────────────────────────────────────────────────────────────── */
.guide-panel {
  margin-top: 0.6rem;
  padding: 0.75rem 0.9rem;
  background: var(--bg);
  border: 1px solid var(--border-soft);
  border-left: 3px solid var(--gold);
  border-radius: var(--radius);
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text);
}

.guide-content strong { color: var(--text-header); }
.guide-content code {
  background: var(--bg-card);
  padding: 0.1em 0.3em;
  border-radius: 3px;
  font-size: 0.85em;
}
.guide-content br + br { display: none; } /* collapse double blank lines */

.guide-thinking, .guide-error {
  color: var(--text-muted);
  font-style: italic;
}
.guide-error { color: #ef9a9a; }

@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.guide-cursor {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--gold);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-start infinite;
}

/* ─── LLM consent modal ──────────────────────────────────────────────────────── */
.llm-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.llm-modal[hidden] { display: none; }

.llm-modal-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 480px;
  width: 100%;
}
.llm-modal-box h2 {
  color: var(--text-header);
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}
.llm-modal-box p {
  color: var(--text);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  line-height: 1.55;
}

.llm-progress-wrap {
  margin: 1rem 0;
}
.llm-progress-wrap[hidden] { display: none; }

#llm-progress-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

progress {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  border: none;
  appearance: none;
  background: var(--bg-card);
  overflow: hidden;
}
progress::-webkit-progress-bar  { background: var(--bg-card); border-radius: 999px; }
progress::-webkit-progress-value { background: var(--gold); border-radius: 999px; }
progress::-moz-progress-bar { background: var(--gold); border-radius: 999px; }

.llm-provider-options {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-bottom: 0.75rem;
  max-height: 55vh;
  overflow-y: auto;
}

.llm-provider-card {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.llm-provider-card:has(input:checked) {
  border-color: var(--gold);
  background: rgba(200,164,74,0.07);
}
.llm-provider-card input[type="radio"] {
  margin-top: 0.2rem;
  accent-color: var(--gold);
  flex-shrink: 0;
}

.llm-provider-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.llm-provider-info strong {
  color: var(--text-header);
  font-size: 0.92rem;
}
.llm-model-meta {
  font-size: 0.78rem;
  color: var(--gold);
  opacity: 0.9;
}
.llm-provider-info > p {
  margin: 0.1rem 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.llm-ollama-config {
  margin-top: 0.55rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.llm-ollama-config[hidden] { display: none; }

.ollama-field {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.ollama-field input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 0.25rem 0.45rem;
  font-size: 0.82rem;
}
.ollama-field input:focus {
  outline: 1px solid var(--gold);
  border-color: var(--gold);
}

.ollama-cors-note {
  font-size: 0.76rem;
  color: var(--text-muted);
  margin: 0.1rem 0 0;
  line-height: 1.4;
}
.ollama-cors-note code {
  background: rgba(200,164,74,0.1);
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  color: var(--gold);
  font-size: 0.9em;
}

.llm-modal-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.1rem;
  flex-wrap: wrap;
}

/* ─── WebGPU unavailable banner ─────────────────────────────────────────────── */
.webgpu-banner {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--medium);
  border-radius: var(--radius);
  padding: 0.6rem 0.9rem;
  font-size: 0.85rem;
  color: var(--medium);
  margin-bottom: 0.75rem;
}

/* ─── Empty state ────────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}
.empty-state.error { color: #ef9a9a; }

/* ─── Toast ──────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(2rem);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
  z-index: 999;
  white-space: nowrap;
}
.toast-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast-success { border-color: var(--easy);  color: var(--easy);   }
.toast-warning { border-color: var(--medium); color: var(--medium); }
.toast-error   { border-color: var(--elite);  color: var(--elite);  }

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-soft);
  margin-top: auto;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .tracker-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .sidebar-toggle {
    display: block;
  }

  .sidebar-content {
    display: none;
  }
  .sidebar-content.open {
    display: block;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .league-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .task-row {
    flex-wrap: wrap;
  }

  .task-points { margin-left: 0; }
}