/* public/css/app.css — IPTV Control Panel Styles */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: #1a2235;
  --bg-card-hover: #1f2a40;
  --bg-input: #0f1629;
  --border: #2a3550;
  --border-focus: #4f8aff;
  --text-primary: #e8edf5;
  --text-secondary: #8899b5;
  --text-muted: #586a8a;
  --accent: #4f8aff;
  --accent-hover: #3a75f0;
  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.1);
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.1);
  --warning: #fbbf24;
  --warning-bg: rgba(251, 191, 36, 0.1);
  --orange: #fb923c;
  --purple: #a78bfa;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 10px;
  --radius-sm: 6px;
  --font: 'DM Sans', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

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

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

/* ── Login Page ── */
.login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, #0a0e17 0%, #111827 50%, #0d1525 100%);
}
.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%; max-width: 400px;
  box-shadow: var(--shadow-lg);
}
.login-box h1 {
  font-size: 1.5rem; font-weight: 700;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.login-box p { color: var(--text-secondary); font-size: 0.875rem; margin-bottom: 1.5rem; }
.login-error { color: var(--danger); font-size: 0.8rem; margin-bottom: 1rem; display: none; padding: 0.5rem; background: var(--danger-bg); border-radius: var(--radius-sm); }

/* ── Layout ── */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px; background: var(--bg-secondary); border-right: 1px solid var(--border);
  padding: 1.25rem 0; display: flex; flex-direction: column; position: fixed;
  top: 0; bottom: 0; left: 0; z-index: 100;
  transition: transform 0.3s;
}
.sidebar-logo {
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.sidebar-logo h2 {
  font-size: 1.1rem; font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.sidebar-logo small { color: var(--text-muted); font-size: 0.7rem; }
.sidebar nav { flex: 1; padding: 0 0.75rem; }
.sidebar nav a {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.65rem 0.75rem; border-radius: var(--radius-sm);
  color: var(--text-secondary); text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  transition: all 0.15s;
}
.sidebar nav a:hover { background: var(--bg-card); color: var(--text-primary); }
.sidebar nav a.active { background: rgba(79,138,255,0.12); color: var(--accent); }
.sidebar nav a svg { width: 18px; height: 18px; flex-shrink: 0; }
.sidebar-footer { padding: 1rem 1.25rem; border-top: 1px solid var(--border); }
.sidebar-footer button {
  background: none; border: none; color: var(--text-muted); cursor: pointer;
  font-size: 0.8rem; font-family: var(--font);
}
.sidebar-footer button:hover { color: var(--danger); }

.main { margin-left: 240px; flex: 1; padding: 1.5rem 2rem; max-width: calc(100% - 240px); }
.page-header { margin-bottom: 1.5rem; }
.page-header h1 { font-size: 1.5rem; font-weight: 700; }
.page-header p { color: var(--text-secondary); font-size: 0.875rem; margin-top: 0.25rem; }

/* ── Forms ── */
label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 0.35rem; text-transform: uppercase; letter-spacing: 0.5px; }
input[type="text"], input[type="password"], input[type="url"], input[type="number"], input[type="email"],
select, textarea {
  width: 100%; padding: 0.6rem 0.75rem;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-family: var(--font); font-size: 0.875rem;
  transition: border-color 0.2s;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--border-focus); }
textarea { resize: vertical; min-height: 80px; }
.form-group { margin-bottom: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-help { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.55rem 1rem; border-radius: var(--radius-sm);
  font-family: var(--font); font-size: 0.8rem; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: all 0.15s; text-decoration: none;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #0a0e17; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: 0.9; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-secondary); }
.btn-ghost:hover { border-color: var(--text-secondary); color: var(--text-primary); }
.btn-sm { padding: 0.35rem 0.6rem; font-size: 0.75rem; }
.btn-icon { padding: 0.4rem; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }

/* ── Cards ── */
.card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.25rem;
  box-shadow: var(--shadow);
}
.card-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 1rem; padding-bottom: 0.75rem; border-bottom: 1px solid var(--border);
}
.card-header h3 { font-size: 0.95rem; font-weight: 600; }

/* ── Dashboard Metrics ── */
.metrics-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.metric-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
}
.metric-card .label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); font-weight: 600; }
.metric-card .value { font-size: 1.75rem; font-weight: 700; margin: 0.25rem 0; font-family: var(--mono); }
.metric-card .sub { font-size: 0.75rem; color: var(--text-secondary); }
.metric-card.accent .value { color: var(--accent); }
.metric-card.success .value { color: var(--success); }
.metric-card.danger .value { color: var(--danger); }
.metric-card.warning .value { color: var(--warning); }

/* ── Progress Bars ── */
.progress-bar { height: 6px; background: var(--bg-primary); border-radius: 3px; overflow: hidden; margin-top: 0.5rem; }
.progress-bar .fill { height: 100%; border-radius: 3px; transition: width 0.5s ease; }
.progress-bar .fill.green { background: var(--success); }
.progress-bar .fill.blue { background: var(--accent); }
.progress-bar .fill.orange { background: var(--orange); }
.progress-bar .fill.red { background: var(--danger); }

/* ── Channels Table ── */
.channels-grid { display: flex; flex-direction: column; gap: 0.75rem; }
.channel-row {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1rem 1.25rem;
  display: grid; grid-template-columns: auto 1fr auto auto;
  align-items: center; gap: 1rem;
  transition: border-color 0.2s;
}
.channel-row:hover { border-color: rgba(79,138,255,0.3); }
.channel-status {
  width: 10px; height: 10px; border-radius: 50%;
}
.channel-status.running { background: var(--success); box-shadow: 0 0 8px var(--success); }
.channel-status.stopped { background: var(--text-muted); }
.channel-status.error { background: var(--danger); box-shadow: 0 0 8px var(--danger); animation: pulse 2s infinite; }
.channel-status.starting { background: var(--warning); animation: pulse 1s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.channel-info h4 { font-size: 0.9rem; font-weight: 600; margin-bottom: 0.15rem; }
.channel-info .meta { font-size: 0.75rem; color: var(--text-muted); display: flex; gap: 1rem; flex-wrap: wrap; }
.channel-info .meta span { display: flex; align-items: center; gap: 0.25rem; }
.channel-stats { text-align: right; font-size: 0.75rem; color: var(--text-secondary); }
.channel-stats .uptime { font-family: var(--mono); font-size: 0.8rem; color: var(--success); }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 1.5rem; width: 100%;
  max-width: 560px; max-height: 85vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); transform: translateY(20px);
  transition: transform 0.2s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal h2 { font-size: 1.1rem; margin-bottom: 1rem; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1.5rem; }

/* ── Code Block ── */
.code-block {
  background: var(--bg-primary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 0.75rem;
  font-family: var(--mono); font-size: 0.75rem;
  overflow-x: auto; white-space: pre-wrap; word-break: break-all;
  color: var(--text-secondary); line-height: 1.7; position: relative;
  max-height: 300px; overflow-y: auto;
}
.code-block .copy-btn {
  position: absolute; top: 0.5rem; right: 0.5rem;
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text-secondary); padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm); font-size: 0.65rem; cursor: pointer;
}
.code-block .copy-btn:hover { color: var(--accent); border-color: var(--accent); }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center; padding: 0.15rem 0.5rem;
  border-radius: 10px; font-size: 0.65rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-muted { background: rgba(88,106,138,0.15); color: var(--text-muted); }

/* ── Tabs ── */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 1.25rem; }
.tab-btn {
  padding: 0.6rem 1rem; background: none; border: none;
  color: var(--text-muted); cursor: pointer; font-family: var(--font);
  font-size: 0.8rem; font-weight: 600; border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Audit Log ── */
.audit-list { max-height: 400px; overflow-y: auto; }
.audit-item {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.6rem 0; border-bottom: 1px solid rgba(42,53,80,0.5);
  font-size: 0.8rem;
}
.audit-item:last-child { border-bottom: none; }
.audit-action { font-weight: 600; color: var(--accent); }
.audit-time { color: var(--text-muted); font-family: var(--mono); font-size: 0.7rem; }

/* ── Toast Notifications ── */
.toast-container { position: fixed; top: 1rem; right: 1rem; z-index: 2000; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  padding: 0.75rem 1rem; border-radius: var(--radius-sm);
  font-size: 0.8rem; font-weight: 500;
  animation: slideIn 0.3s ease;
  min-width: 250px; box-shadow: var(--shadow-lg);
}
.toast-success { background: #065f46; color: #a7f3d0; border: 1px solid #10b981; }
.toast-error { background: #7f1d1d; color: #fca5a5; border: 1px solid #ef4444; }
.toast-info { background: #1e3a5f; color: #93c5fd; border: 1px solid #3b82f6; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding: 1rem; max-width: 100%; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .channel-row { grid-template-columns: auto 1fr; }
  .channel-stats { display: none; }
  .form-row { grid-template-columns: 1fr; }
  .mobile-toggle { display: block !important; }
}
.mobile-toggle { display: none; position: fixed; top: 1rem; left: 1rem; z-index: 200; background: var(--bg-card); border: 1px solid var(--border); color: var(--text-primary); padding: 0.5rem; border-radius: var(--radius-sm); cursor: pointer; }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 3rem; color: var(--text-muted); }
.empty-state svg { width: 48px; height: 48px; margin-bottom: 1rem; opacity: 0.3; }
.empty-state h3 { font-size: 1rem; margin-bottom: 0.5rem; color: var(--text-secondary); }

/* ── Switch toggle ── */
.switch { position: relative; display: inline-block; width: 36px; height: 20px; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch .slider {
  position: absolute; cursor: pointer; inset: 0;
  background: var(--border); border-radius: 20px; transition: 0.3s;
}
.switch .slider::before {
  content: ""; position: absolute; height: 14px; width: 14px;
  left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.3s;
}
.switch input:checked + .slider { background: var(--accent); }
.switch input:checked + .slider::before { transform: translateX(16px); }