/* ── Google Fonts ──────────────────────────────────────────────────────────── */

/* ── CSS Variables ────────────────────────────────────────────────────────── */
:root,
[data-theme="dark"] {
  --bg-0: #0a0a0b;
  --bg-1: #111113;
  --bg-2: #18181c;
  --bg-3: #222228;
  --bg-4: #2c2c34;
  --border: rgba(255,255,255,0.07);
  --border-strong: rgba(255,255,255,0.13);

  --text-primary: #f0f0f4;
  --text-secondary: #9090a0;
  --text-muted: #55555f;

  --accent: #1AAFE6;
  --accent-hover: #3DBFEF;
  --accent-dim: rgba(26,175,230,0.15);
  --accent-glow: rgba(26,175,230,0.25);

  --success: #3ddc84;
  --warning: #f5c542;
  --error: #ff5c5c;

  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --glass-blur: blur(20px);

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 40px rgba(26,175,230,0.2);

  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', ui-monospace, 'Cascadia Code', 'Fira Code', monospace;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Segoe UI', system-ui, sans-serif;

  --sidebar-width: 260px;
  --topbar-height: 64px;
}

[data-theme="light"] {
  --bg-0: #f4f4f6;
  --bg-1: #ffffff;
  --bg-2: #f0f0f4;
  --bg-3: #e8e8ee;
  --bg-4: #dcdce8;
  --border: rgba(0,0,0,0.07);
  --border-strong: rgba(0,0,0,0.13);

  --text-primary: #0f0f14;
  --text-secondary: #555560;
  --text-muted: #aaaabc;

  --glass-bg: rgba(255,255,255,0.7);
  --glass-border: rgba(0,0,0,0.08);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.16);
}

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

html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  font-family: var(--font-body);
  background: var(--bg-0);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

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

img { max-width: 100%; display: block; }

/* ── Scrollbar ────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--bg-4); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Typography ───────────────────────────────────────────────────────────── */
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; letter-spacing: -0.03em; line-height: 1.1; }
h2 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.1rem; font-weight: 600; }
p  { color: var(--text-secondary); }

.mono { font-family: var(--font-mono); }
.text-accent { color: var(--accent); }
.text-muted  { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-error   { color: var(--error); }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: none;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
  color: #fff;
}

.btn-secondary {
  background: var(--bg-3);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-4);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--glass-bg);
  color: var(--text-primary);
}

.btn-danger {
  background: rgba(255,92,92,0.1);
  color: var(--error);
  border: 1px solid rgba(255,92,92,0.2);
}
.btn-danger:hover {
  background: rgba(255,92,92,0.2);
}

.btn-icon {
  padding: 8px;
  width: 36px;
  height: 36px;
  justify-content: center;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
  border-radius: var(--radius-sm);
}

/* ── Cards ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.card-glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: var(--glass-blur);
  padding: 24px;
}

/* ── Inputs ───────────────────────────────────────────────────────────────── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.input {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

.input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

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

textarea.input { resize: vertical; min-height: 120px; }

select.input { cursor: pointer; }

/* ── Badge ────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success { background: rgba(61,220,132,0.12); color: var(--success); }
.badge-warning { background: rgba(245,197,66,0.12); color: var(--warning); }
.badge-error   { background: rgba(255,92,92,0.12);  color: var(--error); }
.badge-muted   { background: var(--bg-3); color: var(--text-muted); }
.badge-accent  { background: var(--accent-dim); color: var(--accent); }

/* ── Toast notifications ──────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--bg-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 12px 18px;
  font-size: 0.875rem;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  pointer-events: all;
  animation: toastIn 0.3s ease forwards;
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--error); }
.toast.info    { border-left: 3px solid var(--accent); }

.toast.out { animation: toastOut 0.3s ease forwards; }

@keyframes toastIn  { from { opacity:0; transform: translateX(20px); } to { opacity:1; transform: translateX(0); } }
@keyframes toastOut { from { opacity:1; transform: translateX(0); } to { opacity:0; transform: translateX(20px); } }

/* ── Modal ────────────────────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: var(--bg-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 32px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.modal-footer {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  margin-top: 28px;
}

@keyframes fadeIn  { from { opacity:0; } to { opacity:1; } }
@keyframes slideUp { from { opacity:0; transform: translateY(16px); } to { opacity:1; transform: translateY(0); } }

/* ── Topbar ───────────────────────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  background: rgba(10,10,11,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  z-index: 100;
}

[data-theme="light"] .topbar {
  background: rgba(255,255,255,0.85);
}

.topbar-logo {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-logo span { color: var(--accent); }

.topbar-spacer { flex: 1; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  cursor: pointer;
  transition: transform 0.2s;
}

.avatar:hover { transform: scale(1.08); }

/* ── Page layout ──────────────────────────────────────────────────────────── */
.page {
  padding-top: var(--topbar-height);
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Loading states ───────────────────────────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}

@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--bg-2) 25%, var(--bg-3) 50%, var(--bg-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer { from { background-position: 200% 0; } to { background-position: -200% 0; } }

/* ── Divider ──────────────────────────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 24px 0;
}

/* ── Empty state ──────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 24px;
  text-align: center;
  color: var(--text-muted);
}

.empty-state svg {
  opacity: 0.3;
}

.empty-state h3 { color: var(--text-secondary); }

/* ── Dropdown menu ────────────────────────────────────────────────────────── */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: var(--bg-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 6px;
  min-width: 180px;
  box-shadow: var(--shadow-md);
  z-index: 200;
  animation: fadeIn 0.15s ease;
}

.dropdown-menu.hidden { display: none; }

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
}

.dropdown-item:hover {
  background: var(--bg-3);
  color: var(--text-primary);
}

.dropdown-item.danger { color: var(--error); }
.dropdown-item.danger:hover { background: rgba(255,92,92,0.1); }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 0 16px; }
  .modal { padding: 24px; }
  .topbar { padding: 0 16px; }
}

@media (max-width: 480px) {
  .btn-lg { padding: 12px 20px; font-size: 0.9rem; }
}

/* ── Utility ──────────────────────────────────────────────────────────────── */
.hidden  { display: none !important; }
.flex    { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.w-full { width: 100%; }
.mt-8   { margin-top: 8px; }
.mt-16  { margin-top: 16px; }
.mt-24  { margin-top: 24px; }
.mb-8   { margin-bottom: 8px; }
.mb-16  { margin-bottom: 16px; }
.mb-24  { margin-bottom: 24px; }