:root {
      --bg-primary: #ffffff;
      --bg-secondary: #f8fafc;
      --text-primary: #1e293b;
      --text-secondary: #64748b;
      --border: #e2e8f0;
      --blue-600: #2563eb;
      --blue-700: #1d4ed8;
      --blue-800: #1e40af;
      --blue-50: #eff6ff;
      --shadow-sm: 0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1);
      --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
    }

    ::-webkit-scrollbar { width: 8px; height: 8px; }
    ::-webkit-scrollbar-track { background: #f1f5f9; }
    ::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 6px; }
    ::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

    .card {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 12px;
      box-shadow: var(--shadow-sm);
    }

    .card-flat {
      background: #ffffff;
      border: 1px solid var(--border);
      border-radius: 8px;
      box-shadow: none;
    }

    .btn-primary {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.5rem 1rem;
      border-radius: 8px;
      background: var(--blue-600);
      color: #ffffff;
      font-weight: 600;
      font-size: 0.875rem;
      border: none;
      cursor: pointer;
      transition: background 0.2s;
    }
    .btn-primary:hover { background: var(--blue-700); }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.5rem;
      padding: 0.5rem 1rem;
      border-radius: 8px;
      background: transparent;
      color: var(--blue-800);
      font-weight: 600;
      font-size: 0.875rem;
      border: 1px solid var(--border);
      cursor: pointer;
      transition: background 0.2s;
    }
    .btn-outline:hover { background: var(--blue-50); }

    .no-scrollbar::-webkit-scrollbar { display: none; }
    .no-scrollbar { -ms-overflow-style: none; scrollbar-width: none; }

    .reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
    .reveal.active { opacity: 1; transform: translateY(0); }

    .toggle-track { transition: background 0.3s; }
    .toggle-thumb { transition: transform 0.3s; }
    .toggle.on .toggle-track { background: var(--blue-600); }
    .toggle.on .toggle-thumb { transform: translateX(1.5rem); }

    .editable { cursor: pointer; }
    .edit-mode .editable:hover { outline: 2px dashed #f59e0b; outline-offset: 2px; background: rgba(245,158,11,0.08); }

    .custom-scrollbar::-webkit-scrollbar { width: 6px; }
    .custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
    .custom-scrollbar::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 8px; }
    .custom-scrollbar::-webkit-scrollbar-thumb:hover { background: #94a3b8; }
    .custom-scrollbar { scrollbar-width: thin; scrollbar-color: #cbd5e1 transparent; }

    .scrollbar-hide::-webkit-scrollbar { display: none; }
    .scrollbar-hide { -ms-overflow-style: none; scrollbar-width: none; }

    .table-header {
      background: var(--blue-50);
    }
    .table-header th {
      color: var(--blue-800);
      font-weight: 600;
    }

    @media (max-width: 640px) {
      #userName { display: none; }
      #userChip { padding: 0.5rem; }
      #userChip img { width: 2rem; height: 2rem; }
      #loginBtn { padding-left: 0.75rem; padding-right: 0.75rem; font-size: 0.8rem; }
    }

    .upload-disabled {
      opacity: 0.5 !important;
      pointer-events: none !important;
      cursor: not-allowed !important;
      filter: grayscale(0.4);
    }

    .day-tab, .schedule-tab-btn, .day-filter-btn, .hjday-btn {
      background-color: #ffffff !important;
      color: #334155 !important;
      border: 1px solid #e2e8f0 !important;
      font-weight: 500;
      transition: all 0.2s ease;
      flex-shrink: 0 !important;
    }
    .day-tab:hover, .schedule-tab-btn:hover, .day-filter-btn:hover, .hjday-btn:hover {
      background-color: #f1f5f9 !important;
      color: #1e293b !important;
    }
    .day-tab.active, .schedule-tab-btn.active, .day-filter-btn.active, .hjday-btn.active {
      background-color: #2563eb !important;
      color: #ffffff !important;
      border-color: #2563eb !important;
      font-weight: 600;
    }

    /* 1. KHUSUS JADWAL PELAJARAN (Memiliki Scrollbar) */
    .jadwal-scroll {
      height: 320px !important;
      max-height: 360px !important;
      overflow-y: scroll !important;
      -webkit-overflow-scrolling: touch !important;
      min-height: 0 !important;
      overflow-x: hidden !important;
      padding-right: 4px;
    }

   /* 2. KHUSUS JADWAL PIKET (Bebaskan tinggi card luar & isinya) */
    .card:has(#piketList),
    .card:has(#piketContainer),
    div[id*="piket"],
    div[id*="Piket"] {
      max-height: none !important;
      min-height: fit-content !important;
      overflow: visible !important;
    }

    /* Beri jarak aman di bawah list piket supaya gak mepet garis bawah */
    #piketList, 
    #piketContainer {
      padding-bottom: 1rem !important;
      height: auto !important;
    }

    /* 3. KHUSUS TOMBOL RIWAYAT KAS (Agar Tidak Gepeng) */
    [onclick*="riwayat"],
    .btn-kas {
      min-height: 42px !important;
      flex-shrink: 0 !important;
    }

    /* =========================================================
       ISOLASI MODAL RIWAYAT KAS — override selector berbahaya
       ========================================================= */

    /* 1. Pastikan modal TERSEMBUNYI jika .hidden ada */
    #kasRiwayatModal.hidden {
      display: none !important;
      opacity: 0 !important;
      pointer-events: none !important;
    }

    /* 2. Hanya tampil sebagai flex ketika .hidden DICABUT */
    #kasRiwayatModal:not(.hidden) {
      display: flex !important;
      opacity: 1 !important;
      pointer-events: auto !important;
    }

    /* 3. Fallback: paksa default tersembunyi (override div[id*="kas"] dll) */
    #kasRiwayatModal {
      display: none !important;
    }

    /* =========================================================
       iOS WEBKIT SCROLL FIX — OVERRIDE FLEX COLLAPSE
       ========================================================= */

    /* Jadwal Pelajaran — bounded scroll area untuk iOS */
    .jadwal-scroll {
      height: 320px !important;
      max-height: 360px !important;
      overflow-y: scroll !important;
      -webkit-overflow-scrolling: touch !important;
      min-height: 0 !important;
      overflow-x: hidden !important;
      padding-right: 4px;
    }

    /* =========================================================
       PR & TUGAS / JADWAL PIKET — RESPONSIVE HEIGHT + iOS SCROLL
       ========================================================= */

    /* Parent wrapper — pastikan card sejajar di desktop */
    .lg\:col-span-3 {
      align-items: stretch !important;
    }

    /* Outer Card PR & Piket — default mobile: auto height */
    #pr,
    #piket {
      height: auto !important;
      min-height: fit-content !important;
      overflow: visible !important;
      display: flex !important;
      flex-direction: column !important;
      flex-shrink: 0 !important;
    }

    /* Inner List — mobile: bounded scroll */
    #prList,
    #piketList {
      max-height: 320px !important;
      overflow-y: scroll !important;
      -webkit-overflow-scrolling: touch !important;
      min-height: 0 !important;
      flex-shrink: 0 !important;
      padding-bottom: 1rem !important;
      scrollbar-width: thin;
      scrollbar-color: transparent transparent;
    }
    #prList::-webkit-scrollbar,
    #piketList::-webkit-scrollbar {
      width: 3px;
    }
    #prList::-webkit-scrollbar-thumb,
    #piketList::-webkit-scrollbar-thumb {
      background: transparent;
    }

    /* Desktop / Tablet — sama kan tinggi card + flex fill */
    @media (min-width: 768px) {
      #pr,
      #piket {
        height: 450px !important;
        overflow: hidden !important;
      }

      #prList,
      #piketList {
        flex: 1 !important;
        max-height: none !important;
      }
    }

    /* Card Kas — biarkan auto mengikuti isi form */
    #kas {
      display: flex !important;
      flex-direction: column !important;
      min-height: fit-content !important;
      flex-shrink: 0 !important;
      width: 100% !important;
      overflow: visible !important;
      height: auto !important;
      visibility: visible !important;
      opacity: 1 !important;
    }

    /* Scroll wrapper di dalam Kas — jangan paksa scroll, biarkan form mengExpand */
    #kas div.overflow-y-auto {
      overflow-y: visible !important;
      -webkit-overflow-scrolling: auto !important;
      max-height: none !important;
      min-height: 0 !important;
      height: auto !important;
      flex: none !important;
    }

    /* Form Kas — pastikan input tampil penuh */
    #kasForm {
      display: block !important;
      min-height: fit-content !important;
      flex-shrink: 0 !important;
      width: 100% !important;
      overflow: visible !important;
      height: auto !important;
      visibility: visible !important;
      opacity: 1 !important;
    }

    /* Parent card umum — jangan potong scrollbar child */
    .card {
      overflow: visible !important;
    }

    /* Input & button targets iOS — minimal 44px agar tidak di-nuke browser */
    #kas input,
    #kas select,
    #kas button,
    #pr input,
    #pr select,
    #pr button,
    #piket input,
    #piket select,
    #piket button {
      min-height: 44px !important;
    }

    html {
      min-height: 100%;
    }
    body {
      background: radial-gradient(circle at 50% 30%, #ffffff 0%, #f4f0ff 35%, #e0f2fe 75%, #eef2ff 100%) !important;
      background-attachment: fixed !important;
      background-size: cover !important;
      min-height: 100vh !important;
    }