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

:root {
  --bg: #0a0a0b;
  --bg-raised: #111113;
  --bg-hover: #161618;
  --bg-input: #111113;

  --border: rgba(255, 255, 255, 0.055);
  --border-focus: rgba(255, 255, 255, 0.12);

  --text-1: rgba(255, 255, 255, 0.92);
  --text-2: rgba(255, 255, 255, 0.55);
  --text-3: rgba(255, 255, 255, 0.3);
  --text-inv: #0a0a0b;

  --radius: 6px;
  --radius-lg: 10px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --sidebar-w: 220px;
}

html { height: 100%; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font);
  font-size: 13px;
  background: var(--bg);
  color: var(--text-1);
  height: 100%;
  line-height: 1.55;
  overflow: hidden;
}

/* ===== APP SHELL ===== */
#app { display: flex; height: 100vh; }

/* ===== SIDEBAR ===== */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 16px 10px;
}

.sidebar-header { padding: 2px 8px 20px; }

.logo { display: flex; align-items: center; gap: 8px; }
.logo-text { font-size: 14px; font-weight: 600; letter-spacing: -0.3px; }

.sidebar-nav { display: flex; flex-direction: column; gap: 1px; flex: 1; }

.nav-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border: none; background: none;
  color: var(--text-2); font: 500 13px/1 var(--font);
  border-radius: var(--radius); cursor: pointer;
  transition: background 0.12s, color 0.12s;
  text-align: left; width: 100%;
}
.nav-item:hover { background: rgba(255,255,255,0.04); color: var(--text-1); }
.nav-item.active { background: rgba(255,255,255,0.07); color: var(--text-1); }

.sidebar-footer {
  display: flex; gap: 16px;
  padding: 14px 10px 0;
  border-top: 1px solid var(--border);
}
.sidebar-stat { display: flex; flex-direction: column; }
.sidebar-stat-value { font-size: 18px; font-weight: 600; font-variant-numeric: tabular-nums; }
.sidebar-stat-label { font-size: 11px; color: var(--text-3); }

/* ===== MAIN ===== */
.main {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  scrollbar-width: thin; scrollbar-color: rgba(255,255,255,0.08) transparent;
}
.main::-webkit-scrollbar { width: 5px; }
.main::-webkit-scrollbar-track { background: transparent; }
.main::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }

/* ===== VIEWS ===== */
.view {
  display: none;
  max-width: 660px;
  margin: 0 auto;
  padding: 0 28px 80px;
  animation: fadeUp 0.25s cubic-bezier(0.22,1,0.36,1);
}
.view.active { display: block; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== VIEW HEADER ===== */
.view-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 28px 0 20px;
  position: sticky; top: 0; background: var(--bg); z-index: 10;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.view-header h1 { font-size: 16px; font-weight: 600; letter-spacing: -0.3px; }
.header-sub { font-size: 12px; color: var(--text-3); margin-top: 2px; display: block; }
.header-with-back { display: flex; align-items: center; gap: 10px; }
.due-tag {
  font-size: 11px; font-weight: 500; color: var(--text-2);
  padding: 3px 8px; border: 1px solid var(--border);
  border-radius: var(--radius); text-transform: uppercase; letter-spacing: 0.3px;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 6px 14px;
  background: var(--text-1); color: var(--text-inv);
  border: none; border-radius: var(--radius);
  font: 600 12px/1 var(--font); cursor: pointer;
  transition: opacity 0.12s;
}
.btn-primary:hover { opacity: 0.85; }
.btn-primary:active { transform: scale(0.97); }

.btn-secondary {
  padding: 6px 14px; background: none;
  color: var(--text-2); border: 1px solid var(--border);
  border-radius: var(--radius); font: 500 12px/1 var(--font);
  cursor: pointer; transition: border-color 0.12s, color 0.12s;
}
.btn-secondary:hover { border-color: var(--border-focus); color: var(--text-1); }

.btn-back {
  display: flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; border: 1px solid var(--border);
  background: none; border-radius: var(--radius); color: var(--text-2);
  cursor: pointer; transition: border-color 0.12s;
}
.btn-back:hover { border-color: var(--border-focus); color: var(--text-1); }

/* ===== SECTIONS ===== */
.section { margin-bottom: 28px; }
.section-title {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--text-3); margin-bottom: 8px;
  display: flex; align-items: center; gap: 6px;
}
.section-count {
  font-size: 10px; font-weight: 600; color: var(--text-3);
  padding: 1px 5px; background: rgba(255,255,255,0.05);
  border-radius: 4px; font-variant-numeric: tabular-nums;
}
.section-title-lg {
  font-size: 14px; font-weight: 600; letter-spacing: -0.2px;
  margin-bottom: 4px;
}
.section-desc { font-size: 13px; color: var(--text-2); margin-bottom: 16px; line-height: 1.6; }

/* ===== PREDICTION LIST ===== */
.pred-list {
  list-style: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.pred-item {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}
.pred-item:last-child { border-bottom: none; }
.pred-item.due { cursor: pointer; }
.pred-item.due:hover { background: var(--bg-hover); }

.pred-marker {
  width: 6px; height: 6px; border-radius: 50%;
  margin-top: 6px; flex-shrink: 0;
  background: var(--text-2);
}
.pred-marker.active { background: var(--text-3); }
.pred-marker.resolved-right { background: var(--text-1); }
.pred-marker.resolved-wrong { background: var(--text-3); border: 1px solid var(--text-3); background: none; }

.pred-body { flex: 1; min-width: 0; }
.pred-text { font-size: 13px; font-weight: 500; color: var(--text-1); line-height: 1.45; }
.pred-meta { font-size: 11px; color: var(--text-3); margin-top: 2px; display: block; }
.pred-lesson {
  display: block; font-size: 11px; color: var(--text-2);
  margin-top: 4px; font-style: italic; line-height: 1.5;
}

.pred-action {
  font-size: 11px; font-weight: 500; color: var(--text-2);
  opacity: 0; transition: opacity 0.12s; flex-shrink: 0; margin-top: 2px;
}
.pred-item.due:hover .pred-action { opacity: 1; }

.pred-days {
  font-size: 11px; color: var(--text-3); flex-shrink: 0;
  font-variant-numeric: tabular-nums; margin-top: 2px;
}

/* ===== LIST GROUPS ===== */
.list-group { margin-bottom: 24px; }
.list-group-label {
  display: block; font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--text-3); margin-bottom: 8px;
}

/* ===== FILTER ROW ===== */
.filter-row {
  display: flex; gap: 1px;
  background: rgba(255,255,255,0.03); padding: 2px;
  border-radius: var(--radius);
}
.filter-btn {
  padding: 4px 10px; border: none; background: none;
  color: var(--text-3); font: 500 11px/1 var(--font);
  border-radius: 4px; cursor: pointer; transition: color 0.12s, background 0.12s;
}
.filter-btn:hover { color: var(--text-2); }
.filter-btn.active { background: rgba(255,255,255,0.07); color: var(--text-1); }

/* ===== FORM ===== */
.form { display: flex; flex-direction: column; gap: 20px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-row { display: flex; gap: 14px; }
.flex-1 { flex: 1; }
.field-label { font-size: 12px; font-weight: 500; color: var(--text-2); }
.optional { font-weight: 400; color: var(--text-3); }

.field-input {
  width: 100%; padding: 8px 10px;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text-1);
  font: 400 13px/1.5 var(--font);
  transition: border-color 0.12s;
}
.field-input:focus { outline: none; border-color: var(--border-focus); }
.field-input::placeholder { color: var(--text-3); }
.field-input::-webkit-calendar-picker-indicator { filter: invert(1); opacity: 0.3; }

.textarea { resize: vertical; min-height: 64px; }
.textarea.sm { min-height: 48px; }

.select-wrap { position: relative; }
.select { appearance: none; padding-right: 28px; cursor: pointer; }
.select option { background: var(--bg-raised); color: var(--text-1); }

.toggle-row { display: flex; gap: 1px; background: rgba(255,255,255,0.03); padding: 2px; border-radius: var(--radius); }
.toggle-btn {
  flex: 1; padding: 7px 10px; border: none; background: none;
  color: var(--text-3); font: 500 12px/1 var(--font);
  border-radius: 4px; cursor: pointer; transition: color 0.12s, background 0.12s;
}
.toggle-btn:hover { color: var(--text-2); }
.toggle-btn.active { background: rgba(255,255,255,0.07); color: var(--text-1); }

/* Slider */
.slider-row { display: flex; align-items: center; gap: 16px; }
.slider {
  -webkit-appearance: none; appearance: none; flex: 1;
  height: 2px; background: rgba(255,255,255,0.08);
  border-radius: 1px; outline: none;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px;
  background: #fff; border-radius: 50%; cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
.slider-readout { min-width: 60px; text-align: right; }
.slider-value {
  font-size: 22px; font-weight: 600; display: block;
  font-variant-numeric: tabular-nums; letter-spacing: -0.5px; line-height: 1;
}
.slider-label { font-size: 10px; color: var(--text-3); }

.form-footer {
  display: flex; justify-content: flex-end; gap: 8px;
  padding-top: 12px; border-top: 1px solid var(--border);
}

/* ===== REVIEW ===== */
.review-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 24px;
}
.review-card-meta { font-size: 11px; color: var(--text-3); display: block; margin-bottom: 8px; }
.review-card-title { font-size: 16px; font-weight: 600; letter-spacing: -0.2px; line-height: 1.4; margin-bottom: 14px; }
.review-card-details {
  display: flex; gap: 20px;
  padding: 10px 0; border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 14px;
}
.detail { display: flex; flex-direction: column; gap: 1px; }
.detail-label { font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.3px; color: var(--text-3); }
.detail-val { font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; }
.review-card-reasoning { display: flex; flex-direction: column; gap: 4px; }
.review-card-reasoning p { font-size: 13px; color: var(--text-2); line-height: 1.6; }

.review-section { margin-bottom: 24px; }
.review-heading { font-size: 14px; font-weight: 600; margin-bottom: 6px; letter-spacing: -0.1px; }
.review-subtext { font-size: 12px; color: var(--text-3); margin-bottom: 12px; }

.hidden { display: none !important; }

/* Outcome row */
.outcome-row { display: flex; gap: 6px; }
.outcome-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 16px 12px;
  background: none; border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  color: var(--text-2); font: 500 12px/1 var(--font);
  cursor: pointer; transition: border-color 0.12s, background 0.12s, color 0.12s;
}
.outcome-btn:hover { border-color: var(--border-focus); color: var(--text-1); background: var(--bg-hover); }
.outcome-btn:active { transform: scale(0.97); }
.outcome-icon { font-size: 18px; line-height: 1; margin-bottom: 2px; }
.outcome-btn.selected {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  color: var(--text-1);
}

/* Error tags */
.error-grid { display: flex; flex-wrap: wrap; gap: 6px; }
.error-tag {
  padding: 6px 11px; border: 1px solid var(--border);
  border-radius: 20px; background: none;
  color: var(--text-2); font: 400 12px/1 var(--font);
  cursor: pointer; transition: border-color 0.12s, background 0.12s, color 0.12s;
}
.error-tag:hover { border-color: var(--border-focus); }
.error-tag.selected {
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.06);
  color: var(--text-1); font-weight: 500;
}

/* Surprise */
.surprise-row { display: flex; gap: 4px; margin-bottom: 24px; }
.surprise-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 10px 6px; border: 1px solid var(--border); background: none;
  border-radius: var(--radius); color: var(--text-2);
  font: 600 14px/1 var(--font); cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.surprise-btn span { font-size: 9px; font-weight: 400; color: var(--text-3); }
.surprise-btn:hover { border-color: var(--border-focus); background: var(--bg-hover); }
.surprise-btn.selected {
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.05);
  color: var(--text-1);
}

/* ===== PATTERNS VIEW ===== */
.patterns-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin-bottom: 28px; }
.summary-card {
  padding: 14px;
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  display: flex; flex-direction: column; gap: 2px;
}
.summary-value {
  font-size: 22px; font-weight: 600;
  font-variant-numeric: tabular-nums; letter-spacing: -0.5px;
}
.summary-label { font-size: 11px; color: var(--text-3); }

/* Blind spots */
.blindspot-list { display: flex; flex-direction: column; gap: 18px; }
.blindspot { display: flex; flex-direction: column; gap: 6px; }
.blindspot-header { display: flex; justify-content: space-between; align-items: baseline; }
.blindspot-name { font-size: 13px; font-weight: 500; }
.blindspot-count { font-size: 11px; color: var(--text-3); font-variant-numeric: tabular-nums; }
.blindspot-bar { height: 2px; background: rgba(255,255,255,0.05); border-radius: 1px; overflow: hidden; }
.blindspot-fill { height: 100%; background: rgba(255,255,255,0.35); border-radius: 1px; }
.blindspot-insight { font-size: 12px; color: var(--text-2); line-height: 1.6; }

/* Domain breakdown */
.domain-list { display: flex; flex-direction: column; gap: 10px; }
.domain-row { display: flex; align-items: center; gap: 10px; }
.domain-name { width: 85px; font-size: 12px; color: var(--text-2); flex-shrink: 0; }
.domain-bar-wrap {
  flex: 1; height: 2px; background: rgba(255,255,255,0.05);
  border-radius: 1px; overflow: hidden;
}
.domain-bar { height: 100%; background: rgba(255,255,255,0.4); border-radius: 1px; }
.domain-score {
  width: 30px; font-size: 12px; font-weight: 600; text-align: right;
  font-variant-numeric: tabular-nums;
}
.domain-note { font-size: 10px; color: var(--text-3); width: 170px; font-style: italic; }

/* Lessons */
.lesson-list { display: flex; flex-direction: column; gap: 1px; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.lesson-card {
  padding: 14px 16px; background: var(--bg-raised);
  display: flex; flex-direction: column; gap: 4px;
}
.lesson-pred { font-size: 12px; font-weight: 500; }
.lesson-tags { font-size: 11px; color: var(--text-3); }
.lesson-text { font-size: 12px; color: var(--text-2); line-height: 1.6; margin-top: 2px; }

/* ===== AI STATUS (prediction cards) ===== */
.ai-status {
  display: block; font-size: 11px; margin-top: 4px;
  font-weight: 500; line-height: 1;
}
.ai-status.ready { color: var(--text-2); }
.ai-status.checking {
  color: var(--text-3);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* ===== AGENT BANNER ===== */
.agent-banner {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg-raised);
  margin-bottom: 24px;
}
.agent-banner-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px;
}
.agent-label {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.4px; color: var(--text-2);
}
.agent-timestamp { font-size: 11px; color: var(--text-3); }

.agent-verdict {
  display: flex; align-items: baseline; gap: 8px;
  margin-bottom: 10px;
}
.agent-verdict-label {
  font-size: 10px; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.3px; color: var(--text-3);
}
.agent-verdict-value {
  font-size: 16px; font-weight: 600; letter-spacing: -0.2px;
}

.agent-summary {
  font-size: 13px; color: var(--text-2); line-height: 1.6;
  margin-bottom: 14px;
}

.agent-sources {
  padding: 12px 0; border-top: 1px solid var(--border);
  margin-bottom: 14px;
}
.agent-sources-label {
  font-size: 10px; font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.3px; color: var(--text-3); margin-bottom: 6px;
  display: block;
}
.agent-source-list {
  list-style: none; display: flex; flex-direction: column; gap: 4px;
}
.agent-source-list li {
  font-size: 12px; color: var(--text-2); line-height: 1.5;
  padding-left: 12px; position: relative;
}
.agent-source-list li::before {
  content: ''; position: absolute; left: 0; top: 7px;
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--text-3);
}

.agent-actions { display: flex; gap: 8px; }

/* Pre-filled label */
.ai-prefilled {
  font-size: 10px; font-weight: 500; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.3px;
  margin-left: 8px;
}

/* ===== TOAST ===== */
.toast {
  position: fixed; bottom: 20px; left: 50%;
  transform: translateX(-50%) translateY(80px);
  padding: 8px 16px; background: var(--text-1); color: var(--text-inv);
  border-radius: var(--radius); font: 500 12px/1 var(--font);
  opacity: 0; transition: transform 0.3s cubic-bezier(0.22,1,0.36,1), opacity 0.3s;
  z-index: 100; pointer-events: none;
}
.toast.visible { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .view { padding: 0 16px 80px; }
  .patterns-summary { grid-template-columns: repeat(2, 1fr); }
  .field-row { flex-direction: column; gap: 20px; }
  .outcome-row { flex-direction: column; }
  .domain-note { display: none; }
}