:root {
    --ink: #1a1a2e;
    --ink-soft: #4a4a6a;
    --ink-muted: #8888aa;
    --paper: #fafaf7;
    --paper-warm: #f5f3ee;
    --accent: #c8a96e;
    --accent-dark: #a8893e;
    --accent-light: #e8d9b8;
    --success: #2d7a4f;
    --danger: #c0392b;
    --border: #e2ddd5;
    --shadow: 0 4px 24px rgba(26,26,46,0.08);
    --shadow-lg: 0 12px 48px rgba(26,26,46,0.14);
  }

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

  body {
    font-family: 'DM Sans', sans-serif;
    background: var(--paper-warm);
    color: var(--ink);
    min-height: 100vh;
  }

  /* ── APP SHELL ── */
  .app {
    display: flex;
    flex-direction: row; /* Desktop: Berjejer samping */
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden; /* Mencegah scroll horizontal pada container utama */
}

.sidebar {
    width: 420px;
    min-width: 420px;
    background: var(--ink);
    color: #fff;
    display: flex;
    flex-direction: column;
    /* Kunci posisi di kiri PC agar tidak mengambang/menindih sembarangan */
    position: fixed; 
    left: 0;
    top: 0;
    bottom: 0;
    height: 100vh;
    z-index: 100;
    overflow: hidden; /* Main container jangan scroll, biar body-nya aja */
}

  .sidebar-header {
    padding: 32px 28px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

.preview-panel {
    margin-left: 420px; /* Beri jarak selebar sidebar */
    flex: 1;
    padding: 40px;
    background: var(--paper-warm);
    min-height: 100vh;
}

  .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 6px;
  }

  .brand-icon {
    width: 36px; height: 36px;
    background: var(--accent);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px;
  }

  .brand-name {
    font-family: 'Playfair Display', serif;
    font-size: 20px;
    font-weight: 700;
    color: #fff;
  }

  .brand-sub { font-size: 12px; color: rgba(255,255,255,0.45); letter-spacing: 0.08em; text-transform: uppercase; }

.sidebar-body {
    padding: 24px 28px;
    flex: 1;
    /* Ini kunci biar scroll-nya enak dan muncul */
    overflow-y: auto; 
    overflow-x: hidden;
    scrollbar-width: thin; /* Untuk Firefox */
    scrollbar-color: var(--accent) transparent;
}

  .section-label {
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    margin-top: 24px;
  }

  .section-label:first-child { margin-top: 0; }

  .field { margin-bottom: 14px; }

  .field label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: rgba(255,255,255,0.5);
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
  }

  .field input, .field textarea, .field select {
    width: 100%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 8px;
    padding: 9px 12px;
    color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
  }

  .field input:focus, .field textarea:focus, .field select:focus {
    border-color: var(--accent);
    background: rgba(200,169,110,0.08);
  }

  .field input::placeholder, .field textarea::placeholder { color: rgba(255,255,255,0.25); }

  .field textarea { resize: vertical; min-height: 60px; }

  .field select option { background: var(--ink); }

  .row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

  /* ITEMS */
  .items-list { display: flex; flex-direction: column; gap: 10px; }

  .item-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 14px;
    position: relative;
  }

  .item-card .item-num {
    font-size: 10px;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 10px;
    text-transform: uppercase;
  }

  .item-row { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 8px; margin-bottom: 8px; }
  .item-row-last { display: grid; grid-template-columns: 1fr; gap: 8px; }

  .item-card input {
    width: 100%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    padding: 7px 10px;
    color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    outline: none;
    transition: border-color 0.2s;
  }

  .item-card input:focus { border-color: var(--accent); }
  .item-card input::placeholder { color: rgba(255,255,255,0.2); }

  .item-label {
    font-size: 10px;
    color: rgba(255,255,255,0.4);
    margin-bottom: 3px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .item-subtotal {
    font-size: 11px;
    color: var(--accent);
    text-align: right;
    font-family: 'DM Mono', monospace;
    font-weight: 500;
  }

  .btn-remove-item {
    position: absolute;
    top: 10px; right: 10px;
    background: rgba(192,57,43,0.15);
    border: none;
    color: #e74c3c;
    width: 22px; height: 22px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s;
  }

  .btn-remove-item:hover { background: rgba(192,57,43,0.35); }

  .btn-add-item {
    width: 100%;
    background: transparent;
    border: 1px dashed rgba(200,169,110,0.4);
    border-radius: 8px;
    color: var(--accent);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    padding: 10px;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 4px;
  }

  .btn-add-item:hover {
    background: rgba(200,169,110,0.08);
    border-color: var(--accent);
  }

  /* OPTIONAL TOGGLE */
  .opt-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    cursor: pointer;
  }

  .toggle-switch {
    width: 32px; height: 18px;
    background: rgba(255,255,255,0.15);
    border-radius: 9px;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
  }

  .toggle-switch::after {
    content: '';
    position: absolute;
    width: 14px; height: 14px;
    background: #fff;
    border-radius: 50%;
    top: 2px; left: 2px;
    transition: transform 0.2s;
  }

  .opt-toggle.active .toggle-switch { background: var(--accent); }
  .opt-toggle.active .toggle-switch::after { transform: translateX(14px); }

  .opt-toggle span {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
  }

  .opt-toggle.active span { color: #fff; }

  .opt-field { display: none; }
  .opt-field.visible { display: block; }

  /* QRIS */
  .qris-upload-area {
    border: 2px dashed rgba(200,169,110,0.3);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
  }

  .qris-upload-area:hover { border-color: var(--accent); background: rgba(200,169,110,0.05); }
  .qris-upload-area input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

  .qris-icon { font-size: 28px; margin-bottom: 8px; }

  .qris-text { font-size: 12px; color: rgba(255,255,255,0.5); }
  .qris-text strong { color: var(--accent); display: block; font-size: 13px; margin-bottom: 2px; }

  .qris-preview {
    margin-top: 10px;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .qris-preview.visible { display: flex; }

  .qris-preview img {
    width: 250px; height: 250px;
    object-fit: contain;
    border-radius: 8px;
    background: white;
    padding: 6px;
  }

  .qris-preview-label {
    font-size: 11px;
    color: var(--success);
    display: flex; align-items: center; gap: 4px;
  }

  /* ACTION BUTTONS */
  .sidebar-footer {
    padding: 20px 28px;
    border-top: 1px solid rgba(255,255,255,0.08);
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .btn-primary {
    width: 100%;
    background: var(--accent);
    color: var(--ink);
    border: none;
    border-radius: 10px;
    padding: 13px;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }

  .btn-primary:hover { background: var(--accent-dark); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(200,169,110,0.3); }

  .btn-secondary {
    width: 100%;
    background: transparent;
    color: rgba(255,255,255,0.7);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 10px;
    padding: 11px;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: flex; align-items: center; justify-content: center; gap: 8px;
  }

  .btn-secondary:hover { background: rgba(255,255,255,0.06); color: #fff; }

  /* ── PREVIEW PANEL ── */
  .preview-panel {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    overflow-y: auto;
    padding: 40px 20px; /* Tambahkan padding atas agar tidak mepet */
    min-height: 0; /* Penting agar flexbox bisa scroll dengan benar */
    width: 100%;
  }

  .preview-title {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    color: var(--ink);
  }

  .preview-actions { display: flex; gap: 10px; }

  .btn-action {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 16px;
    font-family: 'DM Sans', sans-serif;
    font-size: 12px;
    font-weight: 500;
    color: var(--ink);
    cursor: pointer;
    transition: all 0.2s;
    display: flex; align-items: center; gap: 6px;
  }

  .btn-action:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
  .btn-action.primary-action { background: var(--accent); border-color: var(--accent); color: var(--ink); font-weight: 600; }
  .btn-action.primary-action:hover { background: var(--accent-dark); border-color: var(--accent-dark); }

  .invoice-container {
    width: 100%;
    display: flex;
    justify-content: center;
    overflow-x: auto; /* Biar kalau di HP bisa digeser dikit invoicenya tanpa motong toolbar */
    padding-bottom: 50px;
}

  /* ── INVOICE DOCUMENT ── */
  .invoice-doc {
    width: 720px;
    min-width: 720px;
    background: #fff;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    transform-origin: top center;
  }

  .invoice-header {
    background: var(--ink);
    padding: 40px 48px 36px;
    position: relative;
    overflow: hidden;
  }

  .invoice-header::before {
    content: '';
    position: absolute;
    top: -40px; right: -40px;
    width: 200px; height: 200px;
    border-radius: 50%;
    background: rgba(200,169,110,0.12);
  }

  .invoice-header::after {
    content: '';
    position: absolute;
    bottom: -60px; right: 80px;
    width: 140px; height: 140px;
    border-radius: 50%;
    background: rgba(200,169,110,0.07);
  }

  .inv-top { display: flex; justify-content: space-between; align-items: flex-start; }

  .inv-brand-name {
    font-family: 'Playfair Display', serif;
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    line-height: 1.1;
  }

  .inv-brand-tagline {
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    margin-top: 4px;
  }

  .inv-badge {
    background: var(--accent);
    color: var(--ink);
    font-family: 'DM Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
  }

  .inv-meta {
    display: flex;
    gap: 40px;
    margin-top: 28px;
  }

  .inv-meta-item label {
    font-size: 10px;
    color: rgba(255,255,255,0.4);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 3px;
  }

  .inv-meta-item span {
    font-size: 13px;
    color: #fff;
    font-weight: 500;
  }

  .invoice-body { padding: 40px 48px; }

  /* PARTIES */
  .inv-parties {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 36px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--border);
  }

  .party-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 8px;
  }

  .party-name {
    font-family: 'Playfair Display', serif;
    font-size: 17px;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 4px;
  }

  .party-detail {
    font-size: 12px;
    color: var(--ink-soft);
    line-height: 1.6;
    white-space: pre-line;
  }

  /* TABLE */
  .inv-table { width: 100%; border-collapse: collapse; margin-bottom: 28px; }

  .inv-table thead tr {
    background: var(--paper-warm);
    border-radius: 8px;
  }

  .inv-table th {
    padding: 11px 14px;
    font-size: 10px;
    font-weight: 600;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-align: left;
  }

  .inv-table th:last-child { text-align: right; }

  .inv-table td {
    padding: 14px 14px;
    border-bottom: 1px solid #f0ece5;
    font-size: 13px;
    color: var(--ink);
  }

  .inv-table td:last-child {
    text-align: right;
    font-family: 'DM Mono', monospace;
    font-weight: 500;
  }

  .inv-table td.col-qty, .inv-table td.col-price {
    font-family: 'DM Mono', monospace;
    font-size: 13px;
    color: var(--ink-soft);
  }

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

  .inv-item-name { font-weight: 500; color: var(--ink); }
  .inv-item-note { font-size: 11px; color: var(--ink-muted); margin-top: 2px; }

  /* SUMMARY */
  .inv-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    font-size: 13px;
  }

  .inv-summary-row .lbl { color: var(--ink-soft); }
  .inv-summary-row .val { font-family: 'DM Mono', monospace; font-weight: 500; color: var(--ink); }
  .inv-summary-row .val.discount { color: var(--success); }
  .inv-summary-row .val.tax { color: var(--ink-soft); }

  .inv-divider { border: none; border-top: 1px solid var(--border); margin: 10px 0; }

  .inv-total-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    background: var(--ink);
    border-radius: 10px;
    margin-top: 6px;
  }

  .inv-total-lbl {
    font-family: 'Playfair Display', serif;
    font-size: 16px;
    color: #fff;
    font-weight: 600;
  }

  .inv-total-val {
    font-family: 'DM Mono', monospace;
    font-size: 20px;
    font-weight: 500;
    color: var(--accent);
  }

  /* DURATION */
  .inv-duration-block {
    background: var(--paper-warm);
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 16px;
    display: none;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    color: var(--ink-soft);
  }

  .inv-duration-block.visible { display: flex; }
  .inv-duration-icon { font-size: 18px; }

  /* PAYMENT & QRIS */
  .inv-payment {
    margin-top: 32px;
    padding-top: 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
  }

  .inv-payment-info { flex: 1; }

  .inv-payment-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 12px;
  }

  .inv-payment-method {
    font-size: 13px;
    color: var(--ink);
    margin-bottom: 6px;
  }

  .inv-notes-block {
    background: #fffbf3;
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    border-radius: 0 8px 8px 0;
    margin-top: 12px;
    font-size: 12px;
    color: var(--ink-soft);
    line-height: 1.6;
    display: none;
  }

  .inv-notes-block.visible { display: block; }

  .inv-qris-container {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .inv-qris-container.visible { display: flex; }

  .inv-qris-wrapper {
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
  }

  .inv-qris-img {
    width: 250px; height: 250px;
    object-fit: contain;
    display: block;
  }

  .inv-qris-label {
    font-size: 10px;
    font-weight: 600;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    text-align: center;
  }

  .inv-qris-amount {
    font-family: 'DM Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-dark);
    display: none;
  }

  .inv-qris-amount.visible { display: block; }

  .inv-footer {
    background: var(--paper-warm);
    padding: 20px 48px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border);
  }

  .inv-footer-brand {
    font-family: 'Playfair Display', serif;
    font-size: 13px;
    color: var(--ink-muted);
  }

  .inv-footer-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--ink-muted);
  }

  .status-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: #f39c12;
  }

  .status-dot.paid { background: var(--success); }

  /* WATERMARK */
  .inv-watermark {
    display: none;
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) rotate(-35deg);
    font-family: 'Playfair Display', serif;
    font-size: 72px;
    font-weight: 700;
    color: rgba(45,122,79,0.06);
    pointer-events: none;
    z-index: 1;
    white-space: nowrap;
    user-select: none;
  }

  .inv-watermark.visible { display: block; }

  /* EMPTY STATE */
  .empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--ink-muted);
  }

  .empty-state .icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
  .empty-state p { font-size: 14px; line-height: 1.6; }

  /* NOTIFICATION */
  .notif {
    position: fixed;
    bottom: 24px; right: 24px;
    background: var(--ink);
    color: #fff;
    padding: 12px 20px;
    border-radius: 10px;
    font-size: 13px;
    display: flex; align-items: center; gap: 8px;
    box-shadow: var(--shadow-lg);
    transform: translateY(80px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 999;
  }

  .notif.show { transform: translateY(0); opacity: 1; }

  /* INVOICE NUMBER */
  .inv-no-display {
    font-family: 'DM Mono', monospace;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    margin-top: 16px;
    letter-spacing: 0.05em;
  }

  /* SCROLLBAR */
  .sidebar::-webkit-scrollbar {
    width: 6px; /* Lebar scrollbar */
    display: block !important; /* Paksa muncul */
}
.sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05); /* Sedikit kontras agar jalurnya kelihatan */
}
.sidebar::-webkit-scrollbar-thumb {
    background: rgba(200, 169, 110, 0.3); /* Gunakan warna aksen emasmu tapi transparan */
    border-radius: 10px;
    border: 1px solid transparent;
}
.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--accent); /* Jadi emas solid saat disentuh */
}
  

  @media print { body { display: none; } }

  /* ── DOWNLOAD MODAL ── */
  .modal-overlay {
    position: fixed; inset: 0;
    background: rgba(10,10,25,0.65);
    backdrop-filter: blur(6px);
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity 0.25s;
  }
  .modal-overlay.show { opacity: 1; pointer-events: all; }

  .modal {
    background: #fff;
    border-radius: 20px;
    padding: 36px 32px 28px;
    width: 360px;
    box-shadow: 0 24px 80px rgba(0,0,0,0.25);
    transform: translateY(20px) scale(0.97);
    transition: transform 0.25s;
  }
  .modal-overlay.show .modal { transform: translateY(0) scale(1); }

  .modal-title {
    font-family: 'Playfair Display', serif;
    font-size: 20px; color: var(--ink); margin-bottom: 6px;
  }
  .modal-sub { font-size: 12px; color: var(--ink-muted); margin-bottom: 24px; }
  .modal-options { display: flex; flex-direction: column; gap: 12px; margin-bottom: 20px; }

  .dl-option {
    display: flex; align-items: center; gap: 14px;
    background: var(--paper-warm);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 16px 18px;
    cursor: pointer; transition: all 0.18s;
    text-align: left; width: 100%;
    font-family: 'DM Sans', sans-serif;
  }
  .dl-option:hover { border-color: var(--accent); background: #fffbf3; }
  .dl-option:active { transform: scale(0.98); }

  .dl-option-icon {
    font-size: 26px; width: 44px; height: 44px;
    background: #fff; border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08); flex-shrink: 0;
  }
  .dl-option-info { flex: 1; }
  .dl-option-name { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 2px; }
  .dl-option-desc { font-size: 11px; color: var(--ink-muted); }
  .dl-option-arrow { color: var(--ink-muted); font-size: 16px; }

  .modal-cancel {
    width: 100%; background: none;
    border: 1px solid var(--border); border-radius: 10px;
    padding: 10px; font-family: 'DM Sans', sans-serif;
    font-size: 13px; color: var(--ink-muted); cursor: pointer; transition: all 0.15s;
  }
  .modal-cancel:hover { background: var(--paper-warm); color: var(--ink); }

  .export-loading {
    position: fixed; inset: 0;
    background: rgba(10,10,25,0.75);
    backdrop-filter: blur(8px);
    z-index: 2000; display: none;
    flex-direction: column;
    align-items: center; justify-content: center; gap: 16px; color: #fff;
  }
  .export-loading.show { display: flex; }
  .spinner {
    width: 44px; height: 44px;
    border: 3px solid rgba(255,255,255,0.2);
    border-top-color: var(--accent); border-radius: 50%;
    animation: spin 0.7s linear infinite;
  }
  @keyframes spin { to { transform: rotate(360deg); } }
  .export-loading-text { font-size: 14px; font-weight: 500; opacity: 0.85; }

  @media (max-width: 900px) {
    .app { flex-direction: column; }
.sidebar {
        position: relative !important;
        width: 100% !important;
        min-width: 100% !important;
        height: auto !important;
        margin-left: 0 !important;
    }
.preview-panel {
        margin-left: 0 !important;
        width: 100% !important;
    }

    .inv-qris-container.visible {
    display: flex !important; /* Paksa muncul di HP */
    visibility: visible;
    opacity: 1;
}
#d-qris-canvas {
    /* Pastikan canvas punya ukuran visual yang jelas di HP */
    width: 220px !important; 
    height: 220px !important;
}
/* Memastikan invoice tidak keluar jalur layar HP */
    .invoice-doc {
        width: 720px; /* Tetap kunci lebar asli */
        transform: scale(0.48); /* Perkecil sesuai lebar HP rata-rata */
        transform-origin: top center;
        margin: 0 auto -380px auto; /* Margin negatif bawah untuk hapus gap kosong */
    }
}

@media (max-width: 600px) {
    .inv-payment {
        flex-direction: column-reverse; /* Rekening (info) pindah ke bawah QRIS */
        align-items: center;
        text-align: center;
    }
    
    .inv-payment-info {
        width: 100%;
    }

    .inv-notes-block {
        text-align: left; /* Catatan tetap rata kiri biar rapi */
    }
}