/* =============================================
   ImageSEO - responsive.css
   모바일 반응형
   ============================================= */

/* ─── 태블릿 (1024px 이하) ─────────────────── */
@media (max-width: 1024px) {
  .admin-layout {
    grid-template-columns: 200px 1fr;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

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

/* ─── 모바일 (768px 이하) ──────────────────── */
@media (max-width: 768px) {
  /* 헤더 */
  .site-header { padding: 0 16px; }
  .header-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-card, #111118);
    border-bottom: 1px solid var(--border, #2a2a3a);
    flex-direction: column;
    padding: 12px 16px;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    z-index: 100;
  }
  .header-nav.mobile-open {
    display: flex;
  }
  .header-nav a {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
  }
  .header-nav a:hover {
    background: rgba(255,255,255,0.05);
  }
  .logo { font-size: 18px; }
  .site-header { position: relative; }

  /* 히어로 */
  .hero-section { padding: 40px 0 24px; }
  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }
  .stat-number { font-size: 24px; }

  /* 업로드 */
  .dropzone { padding: 40px 20px; }
  .dropzone-title { font-size: 18px; }

  /* 모달 */
  .modal-body {
    grid-template-columns: 1fr;
  }
  .modal-image-preview {
    position: static;
    max-width: 200px;
    margin: 0 auto;
  }
  .modal { max-width: 100%; margin: 16px; }

  /* 갤러리 */
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px;
  }

  /* 관리자 레이아웃 */
  .admin-layout {
    grid-template-columns: 1fr;
  }

  .admin-sidebar {
    display: none;
    position: fixed;
    left: 0; top: 0;
    z-index: 200;
    width: 240px;
    height: 100vh;
    box-shadow: 4px 0 20px rgba(0,0,0,0.5);
  }

  .admin-sidebar.open { display: block; }

  .admin-topbar { padding: 12px 16px; }
  .admin-content { padding: 16px; }

  /* 테이블 */
  .table-wrapper { overflow-x: auto; }
  table { min-width: 600px; }

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

  /* 설정 */
  .settings-grid { grid-template-columns: 1fr; }

  /* 모바일 메뉴 토글 */
  .mobile-menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-secondary);
  }

  /* 오버레이 */
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 199;
  }
  .sidebar-overlay.open { display: block; }

  /* 토스트 */
  #toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }
  .toast { min-width: unset; }
}

/* ─── 소형 모바일 (480px 이하) ─────────────── */
@media (max-width: 480px) {
  .main-container { padding: 24px 16px; }
  .section-title { font-size: 22px; }

  .hero-stats { gap: 16px; }
  .hero-desc { font-size: 14px; }

  .stats-grid { grid-template-columns: 1fr; }

  .modal { border-radius: var(--radius-md); }
  .modal-header, .modal-body, .modal-footer { padding: 16px; }

  .dropzone { padding: 32px 16px; }

  .table-header {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
  .search-input { width: 100%; }
  .search-wrap { width: 100%; }

  .modal-footer { flex-direction: column; }
  .modal-footer .btn { width: 100%; justify-content: center; }
}

/* ─── 데스크톱 전용 표시 ───────────────────── */
.mobile-menu-toggle { display: none; }

@media (max-width: 768px) {
  .mobile-menu-toggle { display: flex; }
}

/* ─── 접근성 ────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}