/* ============================================
   Responsive Breakpoints
   ============================================ */

/* === sm: 480px — Larger phones === */
@media (max-width: 479px) {
  .stat-cards {
    grid-template-columns: 1fr;
  }

  .pick-card-fields {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: var(--space-8) var(--space-5);
  }

  .hero-title {
    font-size: var(--text-xl);
  }

  /* Sub-nav scrollable */
  .sub-nav-item {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }

  /* Modal full-width on small screens */
  .modal {
    max-width: calc(100vw - var(--space-8));
    max-height: 85vh;
  }

  .modal-body {
    padding: var(--space-4);
  }

  /* Chat input area */
  .chat-input-bar {
    padding: var(--space-3);
    gap: var(--space-2);
  }

  .chat-send {
    padding: var(--space-2) var(--space-3) !important;
    font-size: var(--text-xs) !important;
    min-height: 36px !important;
  }

  /* Profile stats 2-col on tiny screens */
  .profile-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-2);
  }

  /* Champion banner smaller */
  .champion-banner {
    padding: var(--space-6);
  }

  .champion-banner-name {
    font-size: var(--text-xl);
  }

  /* Login card */
  .login-card {
    padding: var(--space-6);
  }

  /* Announcement */
  .announcement-body {
    padding: var(--space-4) var(--space-5) var(--space-5);
  }
}

/* === md: 768px — Tablets === */
@media (max-width: 767px) {
  /* Nav: show hamburger, hide links */
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-user-btn .nav-user-name {
    display: none;
  }

  .nav-f1-logo {
    display: none;
  }

  /* Containers */
  .page-container {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  /* Stat cards */
  .stat-cards {
    grid-template-columns: 1fr;
  }

  /* Grids */
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Admin: stack layout */
  .admin-layout {
    flex-direction: column;
  }

  .admin-sidebar {
    width: 100%;
  }

  .admin-sidebar-title {
    display: none;
  }

  .admin-nav {
    position: static;
    flex-direction: row;
    overflow-x: auto;
    gap: var(--space-1);
    padding-bottom: var(--space-3);
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--space-6);
    scrollbar-width: none;
  }

  .admin-nav::-webkit-scrollbar {
    display: none;
  }

  .admin-nav-item {
    white-space: nowrap;
    flex-shrink: 0;
    font-size: var(--text-xs);
    padding: var(--space-2) var(--space-3);
  }

  .admin-nav-icon {
    display: none;
  }

  /* Chat */
  .chat-container {
    height: calc(100vh - var(--nav-height) - var(--space-8));
    border-radius: var(--radius-lg);
  }

  .chat-header {
    flex-direction: column;
    gap: var(--space-2);
    align-items: flex-start;
  }

  .chat-bubble {
    max-width: 90%;
  }

  /* Profile modal stats */
  .profile-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Tables: horizontal scroll with sticky first col */
  .data-table-scroll {
    position: relative;
  }

  .data-table th:first-child,
  .data-table td:first-child {
    position: sticky;
    left: 0;
    z-index: 1;
    background: inherit;
  }

  /* User dropdown */
  .user-dropdown {
    right: var(--space-4);
  }

  /* Auth card */
  .auth-card {
    padding: var(--space-6);
  }

  /* Login: no card or overlay on mobile, form floats over splash */
  .login-screen {
    background: transparent;
  }

  .login-screen-overlay {
    display: none;
  }

  .login-screen-img {
    opacity: 0.2;
  }

  .login-card {
    background: transparent;
    border: none;
    box-shadow: none;
    padding: var(--space-6);
  }

  .login-card-title {
    color: var(--color-text-primary);
  }

  .login-card-desc {
    color: var(--color-text-secondary);
  }

  /* Timeline */
  .timeline {
    padding-left: var(--space-6);
  }
}

/* === lg: 1024px — Small desktops === */
@media (min-width: 768px) and (max-width: 1023px) {
  .stat-cards {
    grid-template-columns: repeat(3, 1fr);
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* === xl: 1280px+ — Full desktops === */
@media (min-width: 1024px) {
  .nav-drawer {
    display: none !important;
    pointer-events: none;
  }
}

/* === Landscape phones === */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    padding: var(--space-6) var(--space-8);
  }

  .page-container {
    padding-top: calc(var(--nav-height) + var(--space-4));
  }
}