/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #6C63FF;
  --primary-dark: #5A52D5;
  --primary-light: #EEF0FF;
  --secondary: #FF6584;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --dark: #1E1B4B;
  --gray-900: #111827;
  --gray-800: #1F2937;
  --gray-700: #374151;
  --gray-600: #4B5563;
  --gray-500: #6B7280;
  --gray-400: #9CA3AF;
  --gray-300: #D1D5DB;
  --gray-200: #E5E7EB;
  --gray-100: #F3F4F6;
  --gray-50: #F9FAFB;
  --white: #FFFFFF;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0,0,0,0.25);
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #000000;
  color: var(--gray-800);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--gray-900); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); box-shadow: 0 4px 15px rgba(108,99,255,0.4); }
.btn-success { background: var(--success); color: var(--white); }
.btn-success:hover { background: #16A34A; box-shadow: 0 4px 15px rgba(34,197,94,0.4); }
.btn-danger { background: var(--danger); color: var(--white); }
.btn-danger:hover { background: #DC2626; box-shadow: 0 4px 15px rgba(239,68,68,0.4); }
.btn-warning { background: var(--warning); color: var(--white); }
.btn-warning:hover { background: #D97706; }
.btn-outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); }
.btn-ghost { background: var(--gray-100); color: var(--gray-700); }
.btn-ghost:hover { background: var(--gray-200); }
.btn-sm { padding: 6px 14px; font-size: 13px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }
.btn-icon { padding: 10px; border-radius: var(--radius); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ===== INPUTS ===== */
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-size: 14px; font-weight: 600; color: var(--gray-700); }
.form-input, .form-textarea, .form-select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--gray-800);
  background: var(--white);
  transition: all 0.2s ease;
  outline: none;
  font-family: inherit;
}
.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(108,99,255,0.1);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--gray-400); }
.form-textarea { resize: vertical; min-height: 100px; }

/* ===== CARDS ===== */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.card-body { padding: 24px; }

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}
.badge-open { background: #DCFCE7; color: #15803D; }
.badge-closed { background: var(--gray-100); color: var(--gray-600); }
.badge-unread { background: var(--primary); color: var(--white); min-width: 20px; height: 20px; border-radius: var(--radius-full); display: inline-flex; align-items: center; justify-content: center; font-size: 11px; padding: 0 6px; }

/* ===== ALERTS ===== */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-success { background: #DCFCE7; color: #15803D; border: 1px solid #BBF7D0; }
.alert-error { background: #FEE2E2; color: #991B1B; border: 1px solid #FECACA; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid #C7D2FE; }
.alert-warning { background: #FEF3C7; color: #92400E; border: 1px solid #FDE68A; }

/* ===== LOADING ===== */
.spinner {
  width: 20px; height: 20px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
.spinner-dark { border-color: rgba(108,99,255,0.2); border-top-color: var(--primary); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease;
}
.modal-overlay.active { opacity: 1; pointer-events: all; }
.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 480px;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.2s ease;
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--gray-100);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-body { padding: 24px 28px; }
.modal-footer { padding: 20px 28px 24px; display: flex; gap: 12px; justify-content: flex-end; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--gray-400); font-size: 20px; padding: 4px; border-radius: var(--radius-sm); transition: color 0.2s; }
.modal-close:hover { color: var(--gray-700); }

/* ===== TOAST ===== */
.toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 9999;
}
.toast {
  background: var(--gray-900);
  color: var(--white);
  padding: 14px 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 500;
  display: flex; align-items: center; gap: 10px;
  min-width: 280px;
  animation: slideIn 0.3s ease;
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { from { transform: translateX(0); opacity: 1; } to { transform: translateX(100%); opacity: 0; } }
.toast.removing { animation: slideOut 0.3s ease forwards; }

/* ===== EMPTY STATE ===== */
.empty-state {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 60px 20px; text-align: center; gap: 12px;
}
.empty-state-icon { font-size: 48px; opacity: 0.4; }
.empty-state h3 { color: var(--gray-600); font-size: 18px; }
.empty-state p { color: var(--gray-400); font-size: 14px; }

/* ===== TYPING INDICATOR ===== */
.typing-indicator {
  display: flex; align-items: center; gap: 4px;
  padding: 10px 14px;
  background: var(--gray-100);
  border-radius: var(--radius);
  width: fit-content;
}
.typing-dot {
  width: 7px; height: 7px;
  background: var(--gray-400);
  border-radius: 50%;
  animation: typingBounce 1.2s infinite;
}
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce { 0%, 60%, 100% { transform: translateY(0); } 30% { transform: translateY(-6px); } }

/* ===== PULSE ===== */
.pulse { animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ===== GRADIENT TEXT ===== */
.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== DIVIDER ===== */
.divider { height: 1px; background: var(--gray-200); margin: 20px 0; }

/* ===== AVATAR ===== */
.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px;
  flex-shrink: 0;
}
.avatar-primary { background: var(--primary-light); color: var(--primary); }
.avatar-admin { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: var(--white); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .btn-lg { padding: 12px 20px; font-size: 15px; }
  .modal { width: 95%; }
}