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

:root {
  --primary: #10b981;
  --primary-dark: #059669;
  --primary-light: #d1fae5;
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --danger: #ef4444;
  --danger-dark: #dc2626;
  --warning: #f59e0b;
  --success: #10b981;
  --info: #3b82f6;

  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-2: #f1f5f9;
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  --text: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 25px 50px -12px rgba(15, 23, 42, 0.2);

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: var(--text);
  height: 100%;
  background: var(--bg);
  touch-action: pan-x pan-y;
  line-height: 1.5;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font-family: inherit;
}

.hidden {
  display: none !important;
}

/* ── Loading ── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeIn 0.2s ease;
}

.loading-card {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 32px 40px;
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 200px;
}

.loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.loading-text {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
}

.loading-inline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 24px;
}

.loading-inline .loading-spinner {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(100%); }
  to { opacity: 1; transform: translateX(0); }
}

/* ── Toasts ── */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 380px;
  width: calc(100% - 40px);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--info);
  pointer-events: auto;
  opacity: 0;
  transform: translateX(100%);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.toast--exit {
  opacity: 0;
  transform: translateX(100%);
}

.toast--success { border-left-color: var(--success); }
.toast--error { border-left-color: var(--danger); }
.toast--warning { border-left-color: var(--warning); }
.toast--info { border-left-color: var(--info); }

.toast-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  color: white;
}

.toast--success .toast-icon { background: var(--success); }
.toast--error .toast-icon { background: var(--danger); }
.toast--warning .toast-icon { background: var(--warning); }
.toast--info .toast-icon { background: var(--info); }

.toast-message {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  line-height: 1.4;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0 0 0 8px;
  line-height: 1;
  flex-shrink: 0;
}

.toast-close:hover { color: var(--text); }

/* ── Alerts ── */
.alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  animation: slideUp 0.3s ease;
}

.alert--error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.alert--warning {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fde68a;
}

.alert-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.alert--error .alert-icon { background: #ef4444; color: white; }

/* ── Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--surface-2) 25%, #e2e8f0 50%, var(--surface-2) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-lg);
}

.skeleton--table {
  height: 180px;
}

.skeleton--card {
  height: 80px;
  margin-bottom: 12px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Empty state ── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  animation: slideUp 0.4s ease;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.empty-state-sub {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── Modal ── */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

.modal-dialog {
  background: var(--surface);
  border-radius: var(--radius-xl);
  padding: 28px;
  max-width: 560px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
}

.modal-title {
  margin-bottom: 20px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.modal-buttons {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  justify-content: flex-end;
}

.confirm-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  font-size: 0.9rem;
}

.confirm-btn:hover { background: var(--primary-dark); }
.confirm-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.cancel-btn {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition);
  font-size: 0.9rem;
}

.cancel-btn:hover { background: var(--border); }

/* ── Section header ── */
.section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
}

.section-header-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.section-header-icon--green { background: var(--primary-light); }