/* ═══════════════════════════════════════════════════════════════
   app.css — Admin SPA Global Stylesheet
   Design: Dark mode, Inter font, glassmorphism accents
═══════════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────────── */
:root {
  --color-bg:           #0f1117;
  --color-surface:      #1a1d27;
  --color-surface-2:    #22263a;
  --color-border:       #2e3350;
  --color-primary:      #6c63ff;
  --color-primary-hover:#5a52e0;
  --color-accent:       #00d4aa;
  --color-danger:       #ff5c7c;
  --color-warning:      #ffb347;
  --color-success:      #4cff91;

  --color-text:         #e8eaf0;
  --color-text-muted:   #8b8fa8;
  --color-text-dim:     #4a4e6b;

  --sidebar-width:      240px;
  --topbar-height:      60px;
  --radius:             12px;
  --radius-sm:          8px;
  --shadow:             0 4px 24px rgba(0,0,0,.4);
  --transition:         0.2s ease;

  --font-sans: 'Inter', system-ui, sans-serif;
}

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

html, body {
  height: 100%;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ── App Shell ─────────────────────────────────────────────── */
#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ── Sidebar ───────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width var(--transition);
  overflow: hidden;
}

.sidebar.collapsed { width: 64px; }
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-label { display: none; }

.sidebar__logo {
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid var(--color-border);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
}

.logo-icon { font-size: 22px; }

.sidebar__nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--color-text-muted);
  font-weight: 500;
  cursor: pointer;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.nav-item:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.nav-item.active {
  background: linear-gradient(90deg, color-mix(in srgb, var(--color-primary) 15%, transparent), transparent);
  color: var(--color-primary);
  border-left: 3px solid var(--color-primary);
}

.nav-icon { font-size: 18px; width: 24px; text-align: center; }

/* ── Main Wrapper ──────────────────────────────────────────── */
.main-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* ── Topbar ────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

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

/* -- Topbar Bell & Dropdown -- */
.topbar-bell-container {
  position: relative;
  display: flex;
  align-items: center;
}

.topbar-bell-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 20px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.topbar-bell-btn:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

/* -- Topbar Theme Picker & Dropdown -- */
.topbar-theme-container {
  position: relative;
  display: flex;
  align-items: center;
}

.topbar-theme-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 20px;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.topbar-theme-btn:hover {
  color: var(--color-text);
  background: var(--color-surface-2);
}

.topbar-theme-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 260px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: dropdownFadeIn 0.15s ease;
}

.topbar-theme-dropdown__header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  background: var(--color-surface-2);
}

.topbar-theme-dropdown__list {
  display: flex;
  flex-direction: column;
  padding: 8px 0;
}

.theme-option-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 12.5px;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  width: 100%;
}

.theme-option-btn:hover {
  background: var(--color-surface-2);
  color: var(--color-text);
}

.theme-option-btn.active {
  color: var(--color-primary);
  background: rgba(108, 99, 255, 0.08);
  font-weight: 600;
}

.theme-color-preview {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  box-shadow: 0 0 0 2px var(--color-surface), 0 0 0 3px var(--color-border);
}

/* ── Custom Theme Overrides ────────────────────────────────── */
body.theme-orange {
  --color-primary:      #ff9f1c;
  --color-primary-hover:#e08300;
  --color-accent:       #ffb703;
}
body.theme-green {
  --color-primary:      #06d6a0;
  --color-primary-hover:#05b385;
  --color-accent:       #4cff91;
}
body.theme-blue {
  --color-primary:      #2196f3;
  --color-primary-hover:#1976d2;
  --color-accent:       #00bcd4;
}
body.theme-purple {
  --color-primary:      #9d4edd;
  --color-primary-hover:#7b2cbf;
  --color-accent:       #c77dff;
}


.topbar-bell-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: var(--color-danger);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid var(--color-surface);
  transform: translate(25%, -25%);
}

.topbar-bell-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 320px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

.topbar-bell-dropdown__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 700;
}

.topbar-bell-dropdown__read-all {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 11px;
  cursor: pointer;
  font-family: var(--font-sans);
}
.topbar-bell-dropdown__read-all:hover {
  text-decoration: underline;
}

.topbar-bell-dropdown__list {
  max-height: 240px;
  overflow-y: auto;
}

.topbar-bell-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: background var(--transition);
  font-size: 12px;
  text-align: left;
}

.topbar-bell-item:hover {
  background: var(--color-surface-2);
}

.topbar-bell-item__title {
  font-weight: 600;
  color: var(--color-text);
}

.topbar-bell-item__body {
  color: var(--color-text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.topbar-bell-item__time {
  font-size: 10px;
  color: var(--color-text-dim);
}

.topbar-bell-dropdown__footer {
  padding: 12px;
  text-align: center;
  border-top: 1px solid var(--color-border);
  font-size: 12px;
  font-weight: 600;
  background: var(--color-surface-2);
}

.topbar-bell-dropdown__footer a {
  color: var(--color-primary);
  display: block;
}
.topbar-bell-dropdown__footer a:hover {
  color: var(--color-primary-hover);
}


/* ── View Container ────────────────────────────────────────── */
.view-container {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }

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

.btn--danger {
  background: var(--color-danger);
  color: #fff;
}
.btn--danger:hover { opacity: .85; }

.icon-btn {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 20px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.icon-btn:hover { color: var(--color-text); }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

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

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th {
  text-align: left;
  padding: 12px 16px;
  color: var(--color-text-muted);
  font-weight: 600;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

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

tr:hover td { background: var(--color-surface-2); }

/* ── Badge ─────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 600;
}
.badge--active   { background: rgba(76,255,145,.15); color: var(--color-success); }
.badge--inactive { background: rgba(255,92,124,.15); color: var(--color-danger); }
.badge--draft    { background: rgba(255,179,71,.15);  color: var(--color-warning); }

/* ── Forms ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; color: var(--color-text-muted); font-size: 13px; }

.form-control {
  width: 100%;
  padding: 10px 14px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 14px;
  font-family: var(--font-sans);
  transition: border-color var(--transition);
}
.form-control:focus { outline: none; border-color: var(--color-primary); }

/* ── Empty / Error States ──────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 300px;
  color: var(--color-text-muted);
  gap: 16px;
  text-align: center;
}

/* ── Utilities ─────────────────────────────────────────────── */
.hidden { display: none !important; }
.flex   { display: flex; }
.flex-1 { flex: 1; }
.gap-2  { gap: 8px; }
.gap-3  { gap: 12px; }
.mb-4   { margin-bottom: 16px; }
.mb-6   { margin-bottom: 24px; }
.text-muted { color: var(--color-text-muted); }

/* ── Login Screen ──────────────────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}

/* Sidebar Backdrop Overlay on Mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(3px);
  z-index: 9999;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.sidebar-overlay.active {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

/* ═══════════════════════════════════════════════════════════════
   Mobile responsive — sidebar drawer + layout fixes
═══════════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  :root { --sidebar-width: 0px; }

  /* Sidebar becomes a sliding drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 260px;
    z-index: 10000;
    transform: translateX(-100%);
    box-shadow: 5px 0 25px rgba(0, 0, 0, 0.5);
    transition: transform var(--transition);
    display: flex !important; /* ensure displayed when overlay is open */
  }

  .sidebar.open {
    transform: translateX(0);
  }

  /* Don't collapse text inside mobile drawer */
  .sidebar.collapsed { width: 260px; }
  .sidebar.collapsed .logo-text,
  .sidebar.collapsed .nav-label { display: block; }
  .logo-text,
  .nav-label { display: block; }

  .sidebar__logo { padding: 0 20px; justify-content: flex-start; }
  .nav-item { padding: 14px 20px; justify-content: flex-start; }
  .nav-icon { width: 24px; font-size: 18px; }

  /* View container more breathing room */
  .view-container { padding: 16px; }
  .topbar         { padding: 0 14px; }
}

@media (max-width: 480px) {
  .view-container { padding: 12px; }
}

/* ── Toast Notification ────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 400px;
  background: rgba(26, 29, 39, 0.95);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  transform: translateX(120%);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s ease;
  opacity: 0;
}

.toast.show {
  transform: translateX(0);
  opacity: 1;
}

.toast--success {
  border-left: 4px solid var(--color-success);
}

.toast--error {
  border-left: 4px solid var(--color-danger);
}

.toast--info {
  border-left: 4px solid var(--color-primary);
}

.toast-icon {
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
}

.toast--success .toast-icon {
  color: var(--color-success);
  background: rgba(76, 255, 145, 0.1);
}

.toast--error .toast-icon {
  color: var(--color-danger);
  background: rgba(255, 92, 124, 0.1);
}

.toast-message {
  flex-grow: 1;
  line-height: 1.4;
}