@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap");

:root {
  --bg-base:      #0a0a0f;
  --bg-surface:   #111118;
  --bg-elevated:  #18181f;
  --bg-overlay:   #1e1e28;
  --border:       rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.14);
  --text-primary: #f0f0f5;
  --text-secondary: #8888a0;
  --text-muted:   #55556a;
  --accent:       #7c5cfc;
  --accent-hover: #6a48f0;
  --accent-dim:   rgba(124,92,252,0.12);
  --green:        #22c55e;
  --green-dim:    rgba(34,197,94,0.12);
  --red:          #ef4444;
  --red-dim:      rgba(239,68,68,0.12);
  --amber:        #f59e0b;
  --amber-dim:    rgba(245,158,11,0.12);
  --cyan:         #06b6d4;
  --cyan-dim:     rgba(6,182,212,0.12);
}

* { font-family: "Inter", sans-serif; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: var(--bg-base); color: var(--text-primary); }

/* Scrollbar */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--bg-overlay); border-radius: 2px; }

/* Focus ring */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Card */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.card-elevated {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
}

/* Btn primary */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s, border-color .15s, opacity .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .45; pointer-events: 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-ghost     { background: transparent; color: var(--text-secondary); border-color: var(--border); }
.btn-ghost:hover { background: var(--bg-elevated); border-color: var(--border-hover); color: var(--text-primary); }
.btn-danger    { background: var(--red-dim); color: var(--red); border-color: rgba(239,68,68,0.2); }
.btn-danger:hover { background: rgba(239,68,68,0.2); }
.btn-success   { background: var(--green-dim); color: var(--green); border-color: rgba(34,197,94,0.2); }
.btn-success:hover { background: rgba(34,197,94,0.2); }
.btn-sm { padding: 6px 12px; font-size: 0.8125rem; }
.btn-lg { padding: 12px 24px; font-size: 0.9375rem; }
.btn-icon { padding: 9px; }
.btn-full { width: 100%; justify-content: center; }

/* Input */
.input {
  width: 100%;
  background: var(--bg-base);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 0.875rem;
  padding: 10px 14px;
  transition: border-color .15s;
}
.input::placeholder { color: var(--text-muted); }
.input:focus { border-color: var(--accent); outline: none; }
.input-group { display: flex; gap: 8px; }
.input-group .input { flex: 1; }

/* Label */
.label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 20px;
}
.badge-green  { background: var(--green-dim);  color: var(--green);  border: 1px solid rgba(34,197,94,0.2); }
.badge-red    { background: var(--red-dim);    color: var(--red);    border: 1px solid rgba(239,68,68,0.2); }
.badge-amber  { background: var(--amber-dim);  color: var(--amber);  border: 1px solid rgba(245,158,11,0.2); }
.badge-cyan   { background: var(--cyan-dim);   color: var(--cyan);   border: 1px solid rgba(6,182,212,0.2); }
.badge-accent { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(124,92,252,0.2); }
.badge-neutral{ background: var(--bg-elevated); color: var(--text-secondary); border: 1px solid var(--border); }

/* Stat card */
.stat-card { padding: 20px; }
.stat-card .stat-value { font-size: 1.75rem; font-weight: 700; line-height: 1; margin-bottom: 4px; }
.stat-card .stat-label { font-size: 0.8125rem; color: var(--text-secondary); }

/* Table */
.table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}
.table td { padding: 12px 14px; border-bottom: 1px solid var(--border); color: var(--text-secondary); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: var(--bg-elevated); }

/* Divider */
.divider { border: none; border-top: 1px solid var(--border); margin: 0; }

/* Sidebar nav */
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background .15s, color .15s;
  text-decoration: none;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.nav-item:hover { background: var(--bg-elevated); color: var(--text-primary); }
.nav-item.active { background: var(--accent-dim); color: var(--accent); }
.nav-item.danger { color: var(--red); }
.nav-item.danger:hover { background: var(--red-dim); }

/* Modal backdrop */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 100;
}
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

/* Toggle switch */
.toggle-track {
  position: relative; display: inline-block;
  width: 44px; height: 24px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: background .2s, border-color .2s;
}
.toggle-track::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 16px; height: 16px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform .2s, background .2s;
}
input[type=checkbox]:checked + .toggle-track {
  background: var(--accent);
  border-color: var(--accent);
}
input[type=checkbox]:checked + .toggle-track::after {
  transform: translateX(20px);
  background: #fff;
}
input[type=checkbox].sr-only { position: absolute; opacity: 0; width: 0; height: 0; }

/* Progress bar */
.progress-bar { height: 3px; background: var(--bg-overlay); border-radius: 2px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 2px; transition: width .3s; }

/* Animations */
@keyframes fadeIn { from { opacity:0; transform: translateY(6px); } to { opacity:1; transform: translateY(0); } }
@keyframes pulse-dot { 0%,100% { opacity:1; } 50% { opacity:.4; } }
.fade-in { animation: fadeIn .25s ease-out; }
.dot-pulse { animation: pulse-dot 1.5s infinite; }

/* ── Light mode ──────────────────────────────────────────── */
html.light {
  --bg-base:        #f4f4f9;
  --bg-surface:     #ffffff;
  --bg-elevated:    #ebebf5;
  --bg-overlay:     #e2e2ef;
  --border:         rgba(0,0,0,0.08);
  --border-hover:   rgba(0,0,0,0.16);
  --text-primary:   #1a1a2e;
  --text-secondary: #50506a;
  --text-muted:     #9090aa;
  --accent-dim:     rgba(124,92,252,0.1);
  --green-dim:      rgba(34,197,94,0.1);
  --red-dim:        rgba(239,68,68,0.1);
  --amber-dim:      rgba(245,158,11,0.1);
  --cyan-dim:       rgba(6,182,212,0.1);
}
html.light .card          { box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
html.light .card-elevated { box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
html.light ::-webkit-scrollbar-thumb { background: var(--bg-overlay); }

/* ── Toggle button theme icon helpers ─────────────────────── */
.icon-sun, .icon-moon { display: inline-block; }

/* Print */
@media print {
  body { background: #fff; color: #000; }
  .no-print { display: none !important; }
}