/* ========================================
   Buggy — Light & Dark Theme Styles
   Linear/Notion-inspired, clean & minimal
   ======================================== */

/* --- Custom Properties — Light --- */
:root {
  --bg: #ffffff;
  --bg-secondary: #f8fafc;
  --card: #ffffff;
  --card-hover: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --accent: #6c5ce7;
  --accent-hover: #5a4bd1;
  --accent-light: #ede9fe;
  --border: #e2e8f0;
  --shadow: 0 1px 3px rgba(0,0,0,0.08);
  --radius: 8px;
  --radius-lg: 12px;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --success: #22c55e;
  --success-bg: #f0fdf4;
}

/* --- Custom Properties — Dark --- */
[data-theme="dark"] {
  --bg: #0f172a;
  --bg-secondary: #1e293b;
  --card: #1e293b;
  --card-hover: #334155;
  --text: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #a29bfe;
  --accent-hover: #b8b2ff;
  --accent-light: #1e1b4b;
  --border: #334155;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --danger: #f87171;
  --danger-bg: #451a1a;
  --success: #4ade80;
  --success-bg: #14532d;
}

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

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  transition: background 0.15s, color 0.15s;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* --- Header / Nav --- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow);
}

nav {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  gap: 16px;
}

.nav-left { display: flex; align-items: center; }
.nav-center { display: flex; align-items: center; gap: 24px; }
.nav-center a { color: var(--text-secondary); font-size: 14px; font-weight: 500; }
.nav-center a:hover { color: var(--accent); text-decoration: none; }
.nav-right { display: flex; align-items: center; gap: 12px; }

.logo-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}
.logo-link:hover { text-decoration: none; }
.logo { height: 28px; width: 28px; border-radius: 6px; object-fit: cover; }

.user-email { font-size: 13px; color: var(--text-muted); }

/* --- Layout --- */
main {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 24px;
  flex: 1;
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
}

/* --- Cards --- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}

/* --- Page Header --- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-header h1 { font-size: 24px; font-weight: 700; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-decoration: none;
  line-height: 1.4;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--card-hover); }

.btn-danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.btn-danger:hover { background: var(--danger-bg); }

.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; }

.inline-form { display: inline; }

/* --- Tables --- */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th {
  background: var(--bg-secondary);
  font-weight: 600;
  text-align: left;
  padding: 10px 16px;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
th a { color: var(--text); cursor: pointer; }
th a:hover { color: var(--accent); text-decoration: none; }

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tr.clickable-row { cursor: pointer; }
tr.clickable-row:hover td { background: var(--card-hover); }

/* --- Badges --- */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: capitalize;
  white-space: nowrap;
}

.badge-status-reported { background: #dbeafe; color: #1d4ed8; }
.badge-status-open { background: #fef3c7; color: #b45309; }
.badge-status-in_progress { background: #fef9c3; color: #a16207; }
.badge-status-fixed { background: #dcfce7; color: #15803d; }
.badge-status-blocked { background: #fee2e2; color: #dc2626; }

[data-theme="dark"] .badge-status-reported { background: #1e3a5f; color: #93c5fd; }
[data-theme="dark"] .badge-status-open { background: #451a03; color: #fcd34d; }
[data-theme="dark"] .badge-status-in_progress { background: #422006; color: #fde047; }
[data-theme="dark"] .badge-status-fixed { background: #14532d; color: #86efac; }
[data-theme="dark"] .badge-status-blocked { background: #450a0a; color: #fca5a5; }

.badge-type-ui { background: #e0e7ff; color: #4338ca; }
.badge-type-engine { background: #fce7f3; color: #be185d; }
.badge-type-error { background: #fee2e2; color: #dc2626; }
.badge-type-messaging { background: #d1fae5; color: #047857; }
.badge-type-other { background: #f1f5f9; color: #475569; }

[data-theme="dark"] .badge-type-ui { background: #312e81; color: #a5b4fc; }
[data-theme="dark"] .badge-type-engine { background: #500724; color: #f9a8d4; }
[data-theme="dark"] .badge-type-error { background: #450a0a; color: #fca5a5; }
[data-theme="dark"] .badge-type-messaging { background: #064e3b; color: #6ee7b7; }
[data-theme="dark"] .badge-type-other { background: #334155; color: #94a3b8; }

/* --- Forms --- */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
  color: var(--text);
}
.form-group label small { font-weight: 400; color: var(--text-muted); }

input[type="text"],
input[type="email"],
input[type="url"],
input[type="date"],
input[type="datetime-local"],
select,
textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--card);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

textarea { resize: vertical; }

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-bar select { width: auto; min-width: 140px; }
.filter-input { flex: 1; min-width: 200px; }

/* --- Alerts --- */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 14px;
  font-weight: 500;
}
.alert-error {
  background: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger);
}
.alert-success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success);
}

/* --- Login Page --- */
.login-card {
  max-width: 400px;
  margin: 80px auto;
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow);
}
.login-logo { width: 120px; height: 120px; margin-bottom: 24px; border-radius: 20px; object-fit: cover; }
.login-card h1 { font-size: 22px; margin-bottom: 24px; }
.login-card form { text-align: left; }
.login-card .btn-block { margin-top: 8px; }
.helper-text { font-size: 13px; color: var(--text-muted); margin-top: 16px; }

/* --- Error Page --- */
.error-page {
  text-align: center;
  padding: 80px 24px;
}
.error-page h1 { font-size: 32px; margin-bottom: 12px; }
.error-message { font-size: 18px; color: var(--text-secondary); margin-bottom: 24px; }
.error-actions { display: flex; gap: 12px; justify-content: center; }

/* --- Bug Detail --- */
.back-link {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--text-muted);
  font-size: 14px;
}
.back-link:hover { color: var(--accent); }

.bug-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}
.bug-header h1 { font-size: 24px; font-weight: 700; }
.bug-badges { display: flex; gap: 8px; flex-shrink: 0; }

.meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.meta-item strong {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

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

/* --- Markdown Body --- */
.markdown-body {
  line-height: 1.7;
  font-size: 15px;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3 {
  margin-top: 24px;
  margin-bottom: 12px;
  font-weight: 700;
}
.markdown-body h1 { font-size: 22px; }
.markdown-body h2 { font-size: 18px; }
.markdown-body h3 { font-size: 16px; }
.markdown-body p { margin-bottom: 12px; }
.markdown-body ul, .markdown-body ol {
  margin-bottom: 12px;
  padding-left: 24px;
}
.markdown-body li { margin-bottom: 4px; }
.markdown-body code {
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}
.markdown-body pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow-x: auto;
  margin-bottom: 12px;
}
.markdown-body pre code { background: none; padding: 0; }
.markdown-body blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 16px;
  margin: 12px 0;
  color: var(--text-secondary);
}
.markdown-body a { color: var(--accent); }
.markdown-body img { max-width: 100%; border-radius: var(--radius); }

/* --- Attachments --- */
.attachment-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}
.attachment-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
}
.attachment-thumb {
  max-width: 100%;
  max-height: 150px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.attachment-file { font-size: 13px; word-break: break-all; }

/* --- Drop Zone --- */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
  cursor: pointer;
  margin-bottom: 12px;
  transition: border-color 0.15s;
  position: relative;
}
.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-light);
}
.drop-zone p { color: var(--text-muted); font-size: 14px; margin: 0; }
.drop-zone-input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* --- Upload Card --- */
.upload-card { margin-top: 16px; }
.upload-card h3 { margin-bottom: 12px; font-size: 16px; }

/* --- Bug Form --- */
.bug-form-page { max-width: 800px; }
.bug-form { margin-top: 16px; }

/* --- Admin --- */
.admin-add-form { margin-bottom: 24px; }
.admin-add-form .form-row { display: flex; gap: 12px; align-items: flex-end; }
.admin-add-form .filter-input { flex: 1; }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

/* --- Theme Toggle --- */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  padding: 4px;
  color: var(--text-secondary);
  line-height: 1;
}
.theme-toggle:hover { opacity: 0.7; }
.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: inline; }

/* --- Markdown Preview --- */
.markdown-preview {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  min-height: 200px;
}
.preview-toggle { margin-top: 8px; }

/* --- Help Page --- */
.help-page { max-width: 800px; }
.help-page h1 { margin-bottom: 32px; }
.help-page h2 { margin-top: 32px; margin-bottom: 12px; font-size: 20px; }
.help-page h3 { margin-top: 20px; margin-bottom: 8px; font-size: 16px; }
.help-page p, .help-page li { font-size: 15px; }
.help-page ul { padding-left: 20px; margin-bottom: 12px; }
.help-page li { margin-bottom: 4px; }
.help-page table { margin: 16px 0; }
.help-page code {
  background: var(--bg-secondary);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 13px;
}

/* --- Bug Actions --- */
.bug-actions { margin-top: 24px; }

/* --- Responsive --- */
@media (max-width: 768px) {
  nav { flex-wrap: wrap; height: auto; padding: 12px 16px; }
  .nav-center { order: 3; width: 100%; justify-content: center; gap: 16px; padding-top: 8px; border-top: 1px solid var(--border); }
  .nav-right { gap: 8px; }
  main { padding: 20px 16px; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .filter-bar { flex-direction: column; }
  .filter-bar select { width: 100%; }
  .filter-input { width: 100%; min-width: 0; }
  .bug-header { flex-direction: column; }
  .meta-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .attachment-list { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

@media (max-width: 480px) {
  .login-card { margin: 40px 16px; padding: 32px 24px; }
  .login-logo { width: 80px; height: 80px; }
  .meta-grid { grid-template-columns: 1fr; }
  .user-email { display: none; }
}