/* ============================================================
   Container
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ============================================================
   Section
   ============================================================ */
.section {
  padding: var(--space-20) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-header h2 {
  margin-bottom: var(--space-4);
}

.section-header p {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border-primary);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  z-index: 1010;
}

.nav-logo-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--indigo-500), var(--indigo-800));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-xl);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

/* Desktop Links - Hidden on Mobile */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-base);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--indigo-600);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

.nav-link:hover, .nav-link.active {
  color: var(--indigo-600);
}

.nav-link:hover::after, .nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  z-index: 1010;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-links {
    display: none !important; /* Absolute hide to prevent clutter */
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100dvh;
    background: var(--bg-glass);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    flex-direction: column;
    justify-content: center;
    padding: var(--space-12);
    gap: var(--space-10);
    z-index: 1005;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
  }

  .nav-links.open {
    display: flex !important;
    opacity: 1;
    pointer-events: auto;
  }

  .nav-link {
    font-size: var(--text-4xl);
    font-weight: 800;
    letter-spacing: -0.04em;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-actions .btn-sm {
    display: none;
  }
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: 1rem 2rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.6rem 1.25rem;
  font-size: var(--text-xs);
}

.btn-lg {
  padding: 1.25rem 2.5rem;
  font-size: var(--text-base);
}

.btn-primary {
  background: var(--indigo-600);
  color: white;
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  background: var(--indigo-700);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 15px 35px rgba(79, 70, 229, 0.45);
}

.btn-secondary {
  background: var(--bg-primary);
  border-color: var(--border-primary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
  border-color: var(--border-secondary);
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--indigo-200);
  box-shadow: var(--shadow-premium);
  transform: translateY(-4px);
}

[data-theme="dark"] .card:hover {
  border-color: var(--indigo-900);
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  padding: 4px 12px;
  font-size: var(--text-xs);
  font-weight: 700;
  border-radius: var(--radius-full);
  letter-spacing: 0.02em;
}

/* ============================================================
   Forms
   ============================================================ */
.input, .select, .textarea {
  background: var(--bg-secondary);
  border: 1px solid var(--border-primary);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 500;
  transition: all var(--transition-base);
}

.input:focus, .select:focus, .textarea:focus {
  background: var(--bg-primary);
  border-color: var(--indigo-500);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.input.error {
  border-color: var(--error-500);
}

.input.error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
}

.textarea {
  resize: vertical;
  min-height: 100px;
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236b7280' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}

.form-error {
  color: var(--error-500);
  font-size: var(--text-xs);
  margin-top: var(--space-1);
}

/* ============================================================
   Tables
   ============================================================ */
.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-primary);
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-primary);
  color: var(--text-primary);
}

.table tr:last-child td {
  border-bottom: none;
}

.table tr:hover td {
  background: var(--surface-card-hover);
}

/* ============================================================
   Loading / Skeleton
   ============================================================ */
.skeleton {
  background: var(--bg-tertiary);
  border-radius: var(--radius-md);
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.skeleton-text {
  height: 14px;
  margin-bottom: var(--space-2);
}

.skeleton-text:last-child {
  width: 60%;
}

.skeleton-card {
  height: 200px;
}

/* ============================================================
   Spinner
   ============================================================ */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-primary);
  border-top-color: var(--brand-accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.spinner-lg {
  width: 40px;
  height: 40px;
  border-width: 3px;
}

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

/* ============================================================
   Empty State
   ============================================================ */
.empty-state {
  text-align: center;
  padding: var(--space-16) var(--space-6);
  color: var(--text-secondary);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--text-primary);
  margin-bottom: var(--space-2);
}

.empty-state p {
  max-width: 400px;
  margin: 0 auto;
}

/* ============================================================
   Toast Notifications
   ============================================================ */
.toast-container {
  position: fixed;
  top: calc(var(--nav-height) + var(--space-4));
  right: var(--space-4);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  max-width: 420px;
  animation: toast-in 0.3s ease;
  font-size: var(--text-sm);
}

.toast.toast-out {
  animation: toast-out 0.2s ease forwards;
}

.toast-success { border-left: 3px solid var(--success-500); }
.toast-error { border-left: 3px solid var(--error-500); }
.toast-warning { border-left: 3px solid var(--warning-500); }
.toast-info { border-left: 3px solid var(--info-500); }

.toast-close {
  margin-left: auto;
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--text-lg);
  padding: 0;
  line-height: 1;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(100px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toast-out {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(100px); }
}

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  padding: var(--space-6);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-base);
}

.modal-overlay.open .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-6);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--text-xl);
  padding: var(--space-2);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--border-primary);
  background: var(--bg-secondary);
  padding: var(--space-12) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-8);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  margin-top: var(--space-3);
  max-width: 320px;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: var(--text-secondary);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-3);
    text-align: center;
  }
}

/* ============================================================
   Theme Toggle
   ============================================================ */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: var(--text-lg);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* ============================================================
   Page offset for fixed nav
   ============================================================ */
.page-content {
  padding-top: var(--nav-height);
}

/* ============================================================
   Platform Icons (emoji-based, simple)
   ============================================================ */
.platform-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  flex-shrink: 0;
}

.platform-icon.instagram { background: linear-gradient(135deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); color: white; }
.platform-icon.tiktok { background: #010101; color: white; }
.platform-icon.youtube { background: #ff0000; color: white; }
.platform-icon.twitter { background: #1da1f2; color: white; }
.platform-icon.facebook { background: #1877f2; color: white; }
.platform-icon.spotify { background: #1db954; color: white; }
.platform-icon.telegram { background: #0088cc; color: white; }
.platform-icon.other { background: var(--gray-200); color: var(--gray-700); }

[data-theme="dark"] .platform-icon.other { background: var(--gray-700); color: var(--gray-300); }