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

:root {
  --primary: #1a56db;
  --primary-dark: #1340a8;
  --primary-light: #3b82f6;
  --accent: #0ea5e9;
  --accent-gold: #f59e0b;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #6366f1;

  --bg-900: #060912;
  --bg-800: #0d1117;
  --bg-700: #111827;
  --bg-600: #1a2035;
  --bg-500: #1f2937;
  --bg-400: #374151;

  --text-100: #f9fafb;
  --text-200: #e5e7eb;
  --text-300: #d1d5db;
  --text-400: #9ca3af;
  --text-500: #6b7280;

  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --glass: rgba(255,255,255,0.05);
  --glass-hover: rgba(255,255,255,0.08);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 30px rgba(26,86,219,0.3);

  --sidebar-width: 260px;
  --header-height: 64px;
  --transition: 0.2s ease;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-800);
  color: var(--text-100);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-700); }
::-webkit-scrollbar-thumb { background: var(--bg-400); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ── TYPOGRAPHY ── */
h1,h2,h3,h4,h5,h6 { font-family: 'Poppins', sans-serif; font-weight: 700; line-height: 1.3; }
h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }
p { color: var(--text-300); }
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

/* ── LAYOUT ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-col { display: flex; flex-direction: column; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.gap-16 { gap: 16px; } .gap-24 { gap: 24px; } .gap-32 { gap: 32px; }
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2,1fr); }
.grid-3 { grid-template-columns: repeat(3,1fr); }
.grid-4 { grid-template-columns: repeat(4,1fr); }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ── CARDS ── */
.card {
  background: var(--bg-600);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all var(--transition);
}
.card:hover { border-color: var(--border-hover); }
.card-glass {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.card-glow { box-shadow: var(--shadow-glow); border-color: rgba(26,86,219,0.3); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 20px; border-radius: var(--radius); font-size: 0.9rem;
  font-weight: 600; cursor: pointer; border: none; transition: all var(--transition);
  font-family: 'Inter', sans-serif; white-space: nowrap; position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.1); opacity: 0; transition: opacity var(--transition);
}
.btn:hover::after { opacity: 1; }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 4px 15px rgba(26,86,219,0.4); }
.btn-primary:hover { box-shadow: 0 6px 25px rgba(26,86,219,0.6); transform: translateY(-1px); }
.btn-secondary { background: var(--bg-500); color: var(--text-200); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-400); border-color: var(--border-hover); }
.btn-accent { background: linear-gradient(135deg, var(--accent), #0284c7); color: #fff; }
.btn-success { background: linear-gradient(135deg, var(--success), #059669); color: #fff; }
.btn-danger { background: linear-gradient(135deg, var(--danger), #dc2626); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-300); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--glass); color: var(--text-100); }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-icon { width: 40px; height: 40px; padding: 0; border-radius: var(--radius); }
.btn-icon-sm { width: 32px; height: 32px; padding: 0; border-radius: var(--radius-sm); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

/* ── FORMS ── */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 0.85rem; font-weight: 600; color: var(--text-300); text-transform: uppercase; letter-spacing: 0.5px; }
.form-input, .form-select, .form-textarea {
  background: var(--bg-700); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 16px; color: var(--text-100);
  font-size: 0.95rem; font-family: 'Inter', sans-serif;
  transition: all var(--transition); width: 100%;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.15);
}
.form-input::placeholder { color: var(--text-500); }
.form-select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='%236b7280' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; background-size: 20px; padding-right: 40px; }
.form-textarea { resize: vertical; min-height: 100px; }
.form-error { font-size: 0.8rem; color: var(--danger); margin-top: 2px; }
.form-hint { font-size: 0.8rem; color: var(--text-500); margin-top: 2px; }
.input-group { position: relative; }
.input-group .form-input { padding-left: 44px; }
.input-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-400); pointer-events: none; }

/* ── BADGES ── */
.badge {
  display: inline-flex; align-items: center; gap: 4px; padding: 3px 10px;
  border-radius: var(--radius-full); font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-success { background: rgba(16,185,129,0.15); color: var(--success); border: 1px solid rgba(16,185,129,0.3); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); border: 1px solid rgba(239,68,68,0.3); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
.badge-info { background: rgba(99,102,241,0.15); color: var(--info); border: 1px solid rgba(99,102,241,0.3); }
.badge-primary { background: rgba(26,86,219,0.15); color: var(--primary-light); border: 1px solid rgba(26,86,219,0.3); }
.badge-neutral { background: var(--bg-500); color: var(--text-400); border: 1px solid var(--border); }

/* ── TABLE ── */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--bg-700); padding: 12px 16px; text-align: left;
  font-size: 0.75rem; font-weight: 700; color: var(--text-400);
  text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border);
}
tbody tr { border-bottom: 1px solid var(--border); transition: background var(--transition); }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--glass); }
tbody td { padding: 14px 16px; font-size: 0.9rem; color: var(--text-200); vertical-align: middle; }

/* ── MODAL ── */
.modal-overlay {
  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;
  opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: var(--bg-600); border: 1px solid var(--border); border-radius: var(--radius-xl);
  padding: 32px; width: 90%; max-width: 540px; max-height: 90vh; overflow-y: auto;
  transform: translateY(20px) scale(0.97); transition: transform 0.25s ease;
  box-shadow: var(--shadow-lg);
}
.modal-overlay.active .modal { transform: translateY(0) scale(1); }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.modal-title { font-size: 1.2rem; font-weight: 700; }
.modal-close { background: var(--bg-500); border: 1px solid var(--border); color: var(--text-400); border-radius: var(--radius-sm); width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all var(--transition); }
.modal-close:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ── ALERT BANNER ── */
.alert { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 500; margin-bottom: 16px; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: var(--success); }
.alert-danger { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: var(--danger); }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: var(--warning); }
.alert-info { background: rgba(99,102,241,0.1); border: 1px solid rgba(99,102,241,0.3); color: var(--info); }

/* ── AVATAR ── */
.avatar { border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.avatar-sm { width: 32px; height: 32px; }
.avatar-md { width: 40px; height: 40px; }
.avatar-lg { width: 56px; height: 56px; }
.avatar-xl { width: 80px; height: 80px; }
.avatar-placeholder {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; border-radius: 50%;
}

/* ── LOADING ── */
.spinner { width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--primary); border-radius: 50%; animation: spin 0.6s linear infinite; }
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton { background: linear-gradient(90deg, var(--bg-600) 25%, var(--bg-500) 50%, var(--bg-600) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── DIVIDER ── */
.divider { height: 1px; background: var(--border); margin: 16px 0; }
.divider-text { display: flex; align-items: center; gap: 12px; color: var(--text-500); font-size: 0.85rem; }
.divider-text::before, .divider-text::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ── TOAST ── */
#toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  display: flex; align-items: center; gap: 12px; padding: 14px 18px;
  background: var(--bg-600); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); min-width: 280px; max-width: 380px;
  animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
}
.toast-success { border-left: 4px solid var(--success); }
.toast-danger { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }
.toast-info { border-left: 4px solid var(--info); }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100%); } to { opacity: 1; transform: translateX(0); } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; transform: translateX(100%); } }

/* ── NAV TOP ── */
.topbar {
  height: var(--header-height); background: var(--bg-800);
  border-bottom: 1px solid var(--border); display: flex; align-items: center;
  justify-content: space-between; padding: 0 24px; position: sticky; top: 0; z-index: 100;
}
.topbar-brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 36px; height: 36px; }
.brand-name { font-family: 'Poppins', sans-serif; font-weight: 800; font-size: 1.05rem; background: linear-gradient(135deg, var(--primary-light), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .grid-3 { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .section { padding: 48px 0; }
}

/* ── UTILITY ── */
.hidden { display: none !important; }
.opacity-0 { opacity: 0; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.relative { position: relative; }
.absolute { position: absolute; }
.overflow-hidden { overflow: hidden; }
.cursor-pointer { cursor: pointer; }
.select-none { user-select: none; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rounded-full { border-radius: var(--radius-full); }
.mt-4 { margin-top: 4px; } .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-4 { margin-bottom: 4px; } .mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.p-8 { padding: 8px; } .p-16 { padding: 16px; } .p-24 { padding: 24px; }
.font-bold { font-weight: 700; } .font-semibold { font-weight: 600; }
.text-sm { font-size: 0.85rem; } .text-xs { font-size: 0.75rem; } .text-lg { font-size: 1.1rem; } .text-xl { font-size: 1.25rem; }
.text-primary { color: var(--primary-light); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-400); }
.text-white { color: #fff; }
.bg-primary { background: var(--primary); }
.bg-surface { background: var(--bg-600); }