@import url('https://fonts.googleapis.com/css2?family=Exo+2:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-input: #222222;
  --bg-hover: #242424;
  --border: #2a2a2a;
  --accent: #3aad47;
  --accent-hover: #2e8f39;
  --text: #e0e0e0;
  --text-muted: #888;
  --text-dim: #555;
  --danger: #e53e3e;
  --warning: #d97706;
  --info: #3b82f6;
  --status-new: #3b82f6;
  --status-pending: #d97706;
  --status-done: #3aad47;
  --status-problem: #e53e3e;
  --radius: 6px;
  --radius-sm: 4px;
  --shadow: 0 2px 8px rgba(0,0,0,0.4);
  --font: 'Exo 2', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 { font-weight: 600; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

/* Layout */
.layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-logo {
  padding: 20px 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--border);
}

.sidebar-nav {
  flex: 1;
  padding: 8px 0;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s, background 0.15s;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--text);
  background: var(--bg-hover);
  text-decoration: none;
}

.sidebar-nav a.active {
  color: var(--accent);
  border-left: 3px solid var(--accent);
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-dim);
}

.main-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-input); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--bg-hover); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #c53030; }
.btn-sm { padding: 4px 10px; font-size: 0.8rem; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; margin-bottom: 5px; font-size: 0.85rem; color: var(--text-muted); font-weight: 500; }

input, select, textarea {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 8px 10px;
  outline: none;
  transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

input::placeholder { color: var(--text-dim); }
textarea { resize: vertical; min-height: 80px; }

/* Tables */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
tbody tr:hover { background: var(--bg-hover); }

/* Status badges */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.badge-new, .badge-info { background: #1d3a6b; color: #93c5fd; }
.badge-pending, .badge-warning { background: #4a2e0a; color: #fbbf24; }
.badge-done, .badge-success, .badge-active { background: #0d3b17; color: #6ee7b7; }
.badge-problem, .badge-danger, .badge-suspended { background: #4a1010; color: #fca5a5; }
.badge-trial { background: #2d1a4a; color: #c4b5fd; }

/* Mono numbers */
.mono { font-family: var(--font-mono); }

/* Utils */
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-accent { color: var(--accent); }
.flex { display: flex; }
.flex-1 { flex: 1; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.mb-4 { margin-bottom: 4px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mt-16 { margin-top: 16px; }
.p-16 { padding: 16px; }

/* Alert */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  font-size: 0.875rem;
}
.alert-error { background: #4a1010; border: 1px solid #7f1d1d; color: #fca5a5; }
.alert-success { background: #0d3b17; border: 1px solid #14532d; color: #6ee7b7; }
.alert-info { background: #1d3a6b; border: 1px solid #1e3a8a; color: #93c5fd; }

/* Spinner */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-logo span, .sidebar-nav a span { display: none; }
  .main-content { padding: 16px; }
}