/* Incept theme — NotebookLM-inspired paper canvas with teal/amber accents. */

:root {
  --bg: #faf9f7;
  --surface: #ffffff;
  --surface-soft: #f5f3ef;
  --border: #e7e3dc;
  --border-strong: #d8d3c9;
  --text: #24312d;
  --text-muted: #6b7570;
  --text-faint: #98a19c;
  --primary: #0e6b5c;
  --primary-strong: #0a5448;
  --primary-soft: #e3f0ec;
  --primary-softer: #eef6f3;
  --accent: #17a583;
  --amber: #e8a33d;
  --amber-soft: #fdf3e2;
  --amber-border: #f3ddb5;
  --danger: #b3372f;
  --danger-soft: #fbeae8;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-card: 0 1px 2px rgba(36, 49, 45, 0.04), 0 6px 24px rgba(36, 49, 45, 0.05);
  --shadow-pop: 0 4px 12px rgba(36, 49, 45, 0.10), 0 12px 40px rgba(36, 49, 45, 0.12);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
}

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

/* ---------- Header ---------- */

.app-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.app-header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 10px 24px;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none !important;
}

.brand-name {
  font-size: 21px;
  font-weight: 700;
  color: var(--primary-strong);
  letter-spacing: -0.02em;
}

.app-nav {
  display: flex;
  gap: 8px;
  margin: 0 auto;
}

.nav-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 14px;
  color: var(--text-muted);
  text-decoration: none !important;
  transition: background 0.15s, color 0.15s;
}

.nav-pill:hover { background: var(--surface-soft); color: var(--text); }
.nav-pill.active { background: var(--primary-soft); color: var(--primary-strong); }

.header-auth-links { display: flex; gap: 8px; margin-left: auto; }

.user-menu { position: relative; margin-left: auto; }

.user-menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 5px 12px 5px 5px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
}
.user-menu-btn:hover { background: var(--surface-soft); }

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
}

.user-menu-dropdown {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-pop);
  min-width: 160px;
  padding: 6px;
  z-index: 100;
}

.user-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  border-radius: 8px;
  padding: 9px 12px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
}
.user-menu-item:hover { background: var(--surface-soft); }

/* ---------- Layout ---------- */

.app-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: filter 0.15s, background 0.15s, border-color 0.15s;
  text-decoration: none !important;
}

.btn-primary {
  background: linear-gradient(100deg, var(--primary-strong) 0%, var(--accent) 100%);
  color: #fff;
}
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { filter: grayscale(0.4) opacity(0.6); cursor: not-allowed; }

.btn-secondary {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--primary-strong);
}
.btn-secondary:hover { background: var(--primary-softer); border-color: var(--primary); }

.btn-ghost {
  background: none;
  color: var(--text-muted);
}
.btn-ghost:hover { background: var(--surface-soft); color: var(--text); }

.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

/* ---------- Chips ---------- */

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}
.chip:hover { border-color: var(--primary); }
.chip.selected {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
}
.tag-teal { background: var(--primary-soft); color: var(--primary-strong); }
.tag-amber { background: var(--amber-soft); color: #9a6a17; }
.tag-neutral { background: var(--surface-soft); color: var(--text-muted); }
.tag-danger { background: var(--danger-soft); color: var(--danger); }

/* ---------- Forms ---------- */

.field { margin-bottom: 18px; }

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.input,
input[type="text"],
input[type="password"],
input[type="search"],
select,
textarea {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.input:focus,
input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 107, 92, 0.12);
}

textarea { resize: vertical; }

.field-error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 5px;
}

.help-text { color: var(--text-muted); font-size: 13px; margin-top: 5px; }

/* ---------- Messages ---------- */

.messages {
  max-width: 1400px;
  margin: 12px auto 0;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message {
  border-radius: var(--radius-md);
  padding: 11px 16px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface);
}
.message-success { background: var(--primary-softer); border-color: var(--primary-soft); color: var(--primary-strong); }
.message-error { background: var(--danger-soft); border-color: #f0cdc9; color: var(--danger); }
.message-warning { background: var(--amber-soft); border-color: var(--amber-border); color: #9a6a17; }

/* ---------- Utility ---------- */

.text-muted { color: var(--text-muted); }
.text-faint { color: var(--text-faint); }