/* essaycoach mocks — shared design tokens */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Source+Serif+4:ital,wght@0,400;0,500;1,400&display=swap');

:root {
  --bg: #FAFAF9;
  --surface: #FFFFFF;
  --ink-primary: #1C1917;
  --ink-secondary: #57534E;
  --ink-tertiary: #A8A29E;
  --line: #E7E5E4;
  --line-soft: #F5F5F4;
  --accent: #D97706;
  --accent-soft: #FEF3C7;
  --accent-ink: #92400E;
  --agent-bg: #F5F5F4;
  --user-bg: #FEF3C7;
  --user-border: #FCD34D;
  --success: #15803D;
  --warning: #B45309;
  --danger: #B91C1C;
  --shadow-sm: 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-md: 0 2px 8px rgba(28, 25, 23, 0.06), 0 1px 2px rgba(28, 25, 23, 0.04);
  --shadow-lg: 0 8px 24px rgba(28, 25, 23, 0.08), 0 2px 8px rgba(28, 25, 23, 0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink-primary);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.serif { font-family: 'Source Serif 4', Georgia, serif; }

/* mock navigator (top demo bar) */
.mock-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(28, 25, 23, 0.95);
  backdrop-filter: blur(12px);
  color: white;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mock-nav .label { color: #A8A29E; letter-spacing: 0.04em; text-transform: uppercase; font-size: 10px; font-weight: 600; }
.mock-nav a { color: #E7E5E4; text-decoration: none; padding: 4px 10px; border-radius: 6px; transition: all 150ms; }
.mock-nav a:hover { background: rgba(255,255,255,0.08); color: white; }
.mock-nav a.current { background: var(--accent); color: white; font-weight: 500; }
.mock-nav .spacer { flex: 1; }
.mock-nav .user { display: flex; align-items: center; gap: 8px; color: #A8A29E; }

/* app shell */
.app {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: calc(100vh - 41px);
}
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--line);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sidebar .brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
  padding: 4px 8px 24px;
  color: var(--ink-primary);
}
.sidebar .brand .dot { color: var(--accent); }
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  color: var(--ink-secondary);
  font-weight: 500;
  text-decoration: none;
  font-size: 13px;
  transition: all 120ms;
}
.sidebar a:hover { background: var(--line-soft); color: var(--ink-primary); }
.sidebar a.active { background: var(--ink-primary); color: white; }
.sidebar .icon { width: 16px; display: inline-flex; }
.sidebar .section-label { font-size: 10px; font-weight: 600; text-transform: uppercase; color: var(--ink-tertiary); letter-spacing: 0.06em; padding: 16px 10px 6px; }

.sidebar .footer {
  margin-top: auto;
  padding: 16px 10px 0;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #FCD34D, #D97706);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 13px;
}

/* main */
.main { padding: 32px 40px; max-width: 1400px; }
.main-header { display: flex; align-items: baseline; gap: 16px; margin-bottom: 24px; }
.main-header h1 { font-size: 24px; font-weight: 600; letter-spacing: -0.02em; margin: 0; }
.main-header .sub { color: var(--ink-secondary); font-size: 13px; }

/* card */
.card {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--line);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card.elevated { box-shadow: var(--shadow-md); }
.card .card-title { font-size: 13px; font-weight: 600; color: var(--ink-secondary); margin-bottom: 12px; letter-spacing: -0.005em; }

/* pills */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 500;
  background: var(--line-soft);
  color: var(--ink-secondary);
  border: 1px solid var(--line);
}
.pill.amber { background: var(--accent-soft); color: var(--accent-ink); border-color: #FCD34D; }
.pill.green { background: #DCFCE7; color: #15803D; border-color: #86EFAC; }
.pill.red { background: #FEE2E2; color: #B91C1C; border-color: #FCA5A5; }
.pill.gray { background: var(--line-soft); color: var(--ink-secondary); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; }
.pill.amber .dot { background: var(--accent); }
.pill.green .dot { background: #15803D; }
.pill.red .dot { background: #B91C1C; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink-primary);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: all 120ms;
  text-decoration: none;
}
.btn:hover { background: var(--line-soft); }
.btn.primary { background: var(--ink-primary); color: white; border-color: var(--ink-primary); }
.btn.primary:hover { background: #292524; }
.btn.accent { background: var(--accent); color: white; border-color: var(--accent); }
.btn.accent:hover { background: var(--accent-ink); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--ink-secondary); }
.btn.ghost:hover { background: var(--line-soft); color: var(--ink-primary); }
.btn.lg { padding: 12px 18px; font-size: 14px; }
.btn.icon-only { padding: 8px; }

/* chat */
.chat-wrap {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  height: calc(100vh - 105px);
}
.chat {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.chat .chat-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 10px;
}
.chat .messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.msg {
  max-width: 80%;
  padding: 12px 16px;
  border-radius: 14px;
  line-height: 1.55;
  font-size: 14px;
}
.msg.agent { background: var(--agent-bg); color: var(--ink-primary); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.user { background: var(--user-bg); border: 1px solid var(--user-border); color: var(--ink-primary); align-self: flex-end; border-bottom-right-radius: 4px; }
.msg.examples { background: white; border: 1px dashed var(--line); padding: 14px 18px; }
.msg.examples ul { margin: 8px 0 0; padding-left: 18px; color: var(--ink-secondary); }
.msg.examples li { margin: 4px 0; font-style: italic; font-family: 'Source Serif 4', Georgia, serif; }
.msg .reflect { background: var(--accent-soft); border: 1px solid #FCD34D; padding: 10px 14px; border-radius: 10px; font-size: 13px; color: var(--accent-ink); margin-top: 8px; }

.chat .composer {
  border-top: 1px solid var(--line);
  padding: 14px 20px;
  display: flex;
  gap: 10px;
  align-items: flex-end;
  background: var(--surface);
}
.chat .composer input, .chat .composer textarea {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 14px;
  font-family: inherit;
  font-size: 14px;
  background: var(--bg);
  resize: none;
}
.chat .composer input:focus, .chat .composer textarea:focus { outline: none; border-color: var(--accent); background: white; }

/* right panel */
.thinking {
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}
.thinking-section {
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--line);
  padding: 18px;
}
.thinking-section .label {
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-tertiary);
  font-weight: 600;
  margin-bottom: 10px;
}

/* coverage map */
.coverage {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 12px;
  font-size: 12px;
}
.coverage-item { display: flex; align-items: center; gap: 8px; color: var(--ink-secondary); }
.coverage-item .dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.coverage-item .dot.empty { background: var(--line); }
.coverage-item .dot.partial { background: #FCD34D; }
.coverage-item .dot.full { background: #15803D; }

/* quote */
.quote {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  padding: 10px 12px;
  border-radius: 4px;
  font-family: 'Source Serif 4', Georgia, serif;
  font-style: italic;
  color: var(--ink-primary);
  font-size: 13px;
  margin-bottom: 8px;
}
.quote .tag { display: inline-block; font-family: 'Inter', sans-serif; font-style: normal; font-size: 10px; color: var(--ink-tertiary); margin-top: 6px; padding: 2px 6px; background: var(--line-soft); border-radius: 4px; }

.theme {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg);
  border-radius: 8px;
  font-size: 13px;
  color: var(--ink-primary);
  margin-bottom: 6px;
}
.theme .em { color: var(--accent); }

/* toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink-primary);
  color: white;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
}

/* utilities */
.row { display: flex; align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.col { display: flex; flex-direction: column; }
.flex-1 { flex: 1; }
.text-secondary { color: var(--ink-secondary); }
.text-tertiary { color: var(--ink-tertiary); }
.text-accent { color: var(--accent); }
.fs-xs { font-size: 11px; }
.fs-sm { font-size: 12px; }
.fs-md { font-size: 14px; }
.fs-lg { font-size: 16px; }
.fs-xl { font-size: 20px; }
.fs-2xl { font-size: 28px; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.tracking-tight { letter-spacing: -0.02em; }
.divider { height: 1px; background: var(--line); margin: 14px 0; }