:root,
[data-theme="light"] {
    --bg-body: #f4f7fb;
    --bg-surface: #ffffff;
    --bg-subtle: #f8fafc;
    --bg-hover: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --border-strong: #cbd5e1;

    --brand-blue: #2563eb;
    --brand-blue-hover: #1d4ed8;
    --brand-blue-soft: #eff6ff;
    --brand-red: #e11d48;
    --brand-red-soft: #fff1f2;
    --brand-green: #059669;
    --brand-green-hover: #047857;
    --brand-green-soft: #ecfdf5;
    --brand-amber: #d97706;
    --brand-amber-soft: #fffbeb;

    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 10px 30px -5px rgba(15, 23, 42, 0.07), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 20px 40px -12px rgba(37, 99, 235, 0.14);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
}

[data-theme="dark"] {
    --bg-body: #0b1120;
    --bg-surface: #111827;
    --bg-subtle: #1e293b;
    --bg-hover: #263349;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #1e293b;
    --border-strong: #334155;

    --brand-blue: #3b82f6;
    --brand-blue-hover: #2563eb;
    --brand-blue-soft: rgba(59, 130, 246, 0.14);
    --brand-red: #f43f5e;
    --brand-red-soft: rgba(244, 63, 94, 0.15);
    --brand-green: #10b981;
    --brand-green-hover: #059669;
    --brand-green-soft: rgba(16, 185, 129, 0.14);
    --brand-amber: #f59e0b;
    --brand-amber-soft: rgba(245, 158, 11, 0.15);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 12px 32px -4px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 20px 40px -12px rgba(0, 0, 0, 0.6);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    transition: background-color 0.2s ease, color 0.2s ease;
    background-image:
        radial-gradient(at 10% 0%, rgba(37, 99, 235, 0.07) 0px, transparent 45%),
        radial-gradient(at 90% 10%, rgba(225, 29, 72, 0.06) 0px, transparent 45%);
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 20px;
}

.hidden {
    display: none !important;
}

/* Header */
.app-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 74px;
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 16px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 4px;
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #e11d48 100%);
    color: #fff;
    padding: 8px 12px;
    border-radius: 12px;
    font-weight: 800;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    white-space: nowrap;
    flex-shrink: 0;
}

.logo-w {
    font-size: 16px;
    letter-spacing: -0.5px;
}

.logo-arrow {
    opacity: 0.9;
    flex-shrink: 0;
}

.logo-pdf {
    font-size: 12px;
    background: rgba(255, 255, 255, 0.22);
    padding: 2px 5px;
    border-radius: 5px;
}

.brand-text {
    min-width: 0;
}

.brand-text h1 {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: 1.25;
    white-space: nowrap;
}

.brand-text h1 span {
    background: linear-gradient(90deg, var(--brand-blue), var(--brand-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text p {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.35;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.engine-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 11px;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: var(--bg-subtle);
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
}

.engine-badge .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand-amber);
    flex-shrink: 0;
}

.engine-badge.ready {
    background: var(--brand-green-soft);
    color: var(--brand-green);
    border-color: rgba(16, 185, 129, 0.25);
}

.engine-badge.ready .status-dot {
    background: var(--brand-green);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
}

.engine-badge.error {
    background: var(--brand-red-soft);
    color: var(--brand-red);
    border-color: rgba(225, 29, 72, 0.25);
}

.engine-badge.error .status-dot {
    background: var(--brand-red);
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

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

/* Main Content */
.main-content {
    padding-top: 32px;
    padding-bottom: 64px;
}

.converter-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

/* Options Bar */
.options-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 24px;
    background: var(--bg-subtle);
    border-bottom: 1px solid var(--border-color);
}

.option-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.option-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-secondary);
}

.select-input {
    font-family: inherit;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    cursor: pointer;
    outline: none;
}

.select-input:focus {
    border-color: var(--brand-blue);
    box-shadow: 0 0 0 3px var(--brand-blue-soft);
}

.checkbox-option {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.checkbox-option input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--brand-blue);
    cursor: pointer;
}

/* Dropzone */
.dropzone {
    margin: 24px;
    padding: 44px 24px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    background: var(--bg-subtle);
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.drag-active {
    border-color: var(--brand-blue);
    background: var(--brand-blue-soft);
    transform: translateY(-1px);
}

.dropzone-illustration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 20px;
}

.doc-card {
    width: 60px;
    height: 74px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    font-weight: 800;
    font-size: 11px;
    box-shadow: var(--shadow-sm);
}

.doc-word {
    background: linear-gradient(145deg, #2563eb, #1d4ed8);
    color: #ffffff;
    transform: rotate(-4deg);
}

.doc-pdf {
    background: linear-gradient(145deg, #e11d48, #be123c);
    color: #ffffff;
    transform: rotate(4deg);
}

.doc-ext {
    background: rgba(255, 255, 255, 0.22);
    padding: 2px 6px;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.doc-lines {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.doc-lines span {
    display: block;
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.65);
}

.doc-lines span:last-child {
    width: 65%;
}

.convert-arrow {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-surface);
    color: var(--brand-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.dropzone-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.dropzone-subtitle {
    font-size: 14.5px;
    color: var(--text-secondary);
    margin-bottom: 22px;
}

.dropzone-cta {
    margin-bottom: 20px;
}

.dropzone-footnotes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    font-size: 12.5px;
    color: var(--text-muted);
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: inherit;
    font-weight: 600;
    border-radius: 10px;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.btn-lg {
    font-size: 15px;
    padding: 13px 26px;
    border-radius: 12px;
}

.btn-sm {
    font-size: 13px;
    padding: 8px 14px;
    border-radius: 8px;
}

.btn-xs {
    font-size: 12.5px;
    padding: 6px 11px;
    border-radius: 7px;
}

.btn-primary {
    background: var(--brand-blue);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover:not(:disabled) {
    background: var(--brand-blue-hover);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--brand-green);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.22);
}

.btn-success:hover:not(:disabled) {
    background: var(--brand-green-hover);
    transform: translateY(-1px);
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--bg-hover);
}

.btn-ghost-danger {
    background: transparent;
    color: var(--brand-red);
    border-color: rgba(225, 29, 72, 0.25);
}

.btn-ghost-danger:hover:not(:disabled) {
    background: var(--brand-red-soft);
}

/* Queue Container */
.queue-container {
    border-top: 1px solid var(--border-color);
    padding: 24px;
    background: var(--bg-surface);
}

.queue-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.queue-stats h3 {
    font-size: 16.5px;
    font-weight: 700;
    color: var(--text-primary);
}

.queue-summary-text {
    font-size: 13px;
    color: var(--text-muted);
}

.queue-bulk-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
}

/* File List & Items */
.file-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.file-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 18px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-subtle);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.file-item.status-done {
    border-color: rgba(16, 185, 129, 0.35);
    background: var(--bg-surface);
}

.file-item.status-converting {
    border-color: var(--brand-blue);
    background: var(--bg-surface);
}

.file-item.status-error {
    border-color: rgba(225, 29, 72, 0.4);
    background: var(--brand-red-soft);
}

.file-item-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
    flex: 1;
}

.file-type-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 11px;
    flex-shrink: 0;
    background: var(--brand-blue-soft);
    color: var(--brand-blue);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.file-item.status-done .file-type-icon {
    background: var(--brand-red-soft);
    color: var(--brand-red);
    border-color: rgba(225, 29, 72, 0.22);
}

.file-meta {
    min-width: 0;
    flex: 1;
}

.file-name {
    font-size: 14.5px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-submeta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 12.5px;
    color: var(--text-muted);
    margin-top: 2px;
}

.meta-sep {
    opacity: 0.5;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    font-weight: 600;
    padding: 2px 9px;
    border-radius: 999px;
}

.status-pill.ready {
    background: var(--bg-hover);
    color: var(--text-secondary);
}

.status-pill.converting {
    background: var(--brand-blue-soft);
    color: var(--brand-blue);
}

.status-pill.done {
    background: var(--brand-green-soft);
    color: var(--brand-green);
}

.status-pill.error {
    background: var(--brand-red-soft);
    color: var(--brand-red);
}

.file-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

/* Progress Bar inside File Item */
.progress-track {
    width: 100%;
    height: 5px;
    background: var(--border-color);
    border-radius: 999px;
    overflow: hidden;
}

.progress-bar-indeterminate {
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, var(--brand-blue), var(--brand-red));
    border-radius: 999px;
    animation: indeterminateSlide 1.15s infinite ease-in-out;
}

@keyframes indeterminateSlide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 28px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.feature-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon.blue {
    background: var(--brand-blue-soft);
    color: var(--brand-blue);
}

.feature-icon.purple {
    background: var(--brand-red-soft);
    color: var(--brand-red);
}

.feature-icon.green {
    background: var(--brand-green-soft);
    color: var(--brand-green);
}

.feature-item h4 {
    font-size: 14.5px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.feature-item p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Window Drag Overlay */
.window-drag-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: rgba(15, 23, 42, 0.72);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.window-drag-box {
    background: var(--bg-surface);
    border: 3px dashed var(--brand-blue);
    border-radius: var(--radius-xl);
    padding: 48px 64px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    pointer-events: none;
}

.drag-icon-pulse {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    background: var(--brand-blue-soft);
    color: var(--brand-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.window-drag-box h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 6px;
}

.window-drag-box p {
    color: var(--text-muted);
    font-size: 14px;
}

/* PDF Preview Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-dialog {
    width: 100%;
    max-width: 1060px;
    height: 90vh;
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-subtle);
}

.modal-title-group {
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
}

.pdf-badge {
    background: var(--brand-red);
    color: #fff;
    font-size: 11px;
    font-weight: 800;
    padding: 3px 7px;
    border-radius: 5px;
}

.modal-title-group h3 {
    font-size: 15px;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-body {
    flex: 1;
    background: #334155;
}

.modal-body iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 110;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 380px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    border-radius: 12px;
    background: var(--bg-surface);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    font-size: 13.5px;
    font-weight: 500;
    animation: slideInUp 0.2s ease;
}

.toast.success {
    border-left: 4px solid var(--brand-green);
}

.toast.error {
    border-left: 4px solid var(--brand-red);
}

.toast.info {
    border-left: 4px solid var(--brand-blue);
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 820px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .header-inner {
        height: auto;
        padding: 14px 20px;
        flex-wrap: wrap;
    }

    .options-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .file-item-main {
        flex-direction: column;
        align-items: flex-start;
    }

    .file-actions {
        width: 100%;
        justify-content: flex-end;
    }
}


/* ============================================================
   VIP QUOTA BADGE, PAYWALL MODAL, VIETQR & SUBSCRIPTION POLICY
   ============================================================ */

.quota-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 11px;
    border-radius: 999px;
    background: var(--brand-amber-soft);
    color: var(--brand-amber);
    border: 1px solid rgba(217, 119, 6, 0.25);
    white-space: nowrap;
    flex-shrink: 0;
    max-width: 245px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.quota-badge span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.quota-badge.vip-active {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.16), rgba(225, 29, 72, 0.14));
    color: var(--brand-amber);
    border-color: rgba(245, 158, 11, 0.45);
}

.btn-vip {
    background: linear-gradient(135deg, #f59e0b 0%, #e11d48 100%);
    color: #ffffff;
    border: none;
    box-shadow: 0 4px 12px rgba(225, 29, 72, 0.25);
    white-space: nowrap;
    flex-shrink: 0;
}

.btn-vip:hover {
    filter: brightness(1.06);
    transform: translateY(-1px);
}

.paywall-dialog {
    width: 100%;
    max-width: 920px;
    max-height: 92vh;
    background: var(--bg-surface);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.paywall-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(225, 29, 72, 0.08));
    border-bottom: 1px solid var(--border-color);
}

.vip-pill {
    display: inline-block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.6px;
    padding: 3px 9px;
    border-radius: 999px;
    background: linear-gradient(135deg, #f59e0b, #e11d48);
    color: #fff;
    margin-bottom: 6px;
}

.paywall-header h2 {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.paywall-header p {
    font-size: 13.5px;
    color: var(--text-secondary);
}

.paywall-body {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: 24px;
    padding: 24px 28px;
}

.column-heading {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 12px;
}

.plan-cards {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.plan-card {
    position: relative;
    display: block;
    padding: 15px 16px;
    border-radius: var(--radius-md);
    border: 2px solid var(--border-color);
    background: var(--bg-subtle);
    cursor: pointer;
    transition: all 0.15s ease;
}

.plan-card input[type="radio"] {
    display: none;
}

.plan-card:hover {
    border-color: var(--border-strong);
}

.plan-card.selected {
    border-color: var(--brand-blue);
    background: var(--brand-blue-soft);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.12);
}

.plan-badge-popular,
.plan-badge-save {
    position: absolute;
    top: -10px;
    right: 14px;
    font-size: 10px;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 999px;
    color: #fff;
}

.plan-badge-popular {
    background: var(--brand-blue);
}

.plan-badge-save {
    background: var(--brand-green);
}

.plan-card-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.plan-name {
    font-size: 14.5px;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.plan-price-box {
    text-align: right;
    flex-shrink: 0;
}

.plan-price {
    display: block;
    font-size: 17px;
    font-weight: 800;
    color: var(--brand-blue);
}

.plan-period {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
}

.license-box {
    margin-top: 16px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    background: var(--bg-subtle);
    border: 1px dashed var(--border-strong);
}

.license-box label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.license-input-row {
    display: flex;
    gap: 8px;
}

.license-input-row input {
    flex: 1;
    padding: 8px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-strong);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
}

.paywall-policy-note {
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-muted);
}

.paywall-policy-note a {
    color: var(--brand-blue);
    text-decoration: underline;
}

/* Payment Tabs & VietQR */
.payment-tabs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
    padding: 4px;
    background: var(--bg-subtle);
    border-radius: 10px;
    border: 1px solid var(--border-color);
    margin-bottom: 14px;
}

.payment-tab {
    padding: 8px 10px;
    font-size: 12.5px;
    font-weight: 700;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.payment-tab.active {
    background: var(--bg-surface);
    color: var(--brand-blue);
    box-shadow: var(--shadow-sm);
}

.qr-box {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-subtle);
}

.qr-image-wrap {
    width: 158px;
    height: 158px;
    background: #fff;
    padding: 6px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-image-wrap img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.qr-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
}

.qr-info-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 5px;
}

.qr-info-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.qr-info-row span {
    color: var(--text-muted);
    font-size: 12px;
}

.highlight-amount {
    color: var(--brand-red);
    font-size: 15px;
}

.highlight-code {
    color: var(--brand-blue);
    background: var(--brand-blue-soft);
    padding: 2px 6px;
    border-radius: 4px;
}

.copy-mini-btn {
    margin-left: 6px;
    padding: 2px 7px;
    font-size: 11px;
    font-weight: 600;
    border-radius: 5px;
    border: 1px solid var(--border-strong);
    background: var(--bg-surface);
    color: var(--text-secondary);
    cursor: pointer;
}

.copy-mini-btn:hover {
    color: var(--brand-blue);
    border-color: var(--brand-blue);
}

.qr-status-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
    padding: 9px 12px;
    border-radius: 8px;
    background: var(--brand-amber-soft);
    color: var(--brand-amber);
    font-size: 12px;
    font-weight: 600;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--brand-amber);
    flex-shrink: 0;
    animation: pulseGlow 1.4s infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.35); opacity: 0.5; }
}

/* Card Form */
.card-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-subtle);
}

.form-group label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-strong);
    background: var(--bg-surface);
    color: var(--text-primary);
    font-size: 13.5px;
    outline: none;
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.card-terms-note {
    font-size: 11.5px;
    color: var(--text-muted);
    line-height: 1.45;
}

.card-terms-note a {
    color: var(--brand-blue);
}

/* Footer */
.app-footer {
    margin-top: 36px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--brand-blue);
    text-decoration: underline;
}

/* Policy Page */
.policy-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.policy-hero {
    padding: 36px 32px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(225, 29, 72, 0.08));
    border-bottom: 1px solid var(--border-color);
}

.policy-badge {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    color: var(--brand-blue);
    background: var(--brand-blue-soft);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}

.policy-hero h1 {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
}

.policy-hero p {
    font-size: 15px;
    color: var(--text-secondary);
}

.policy-body {
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.policy-section h2 {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.policy-section p,
.policy-section li {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.65;
}

.policy-section ul {
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
}

.policy-pricing-table-wrap {
    overflow-x: auto;
    margin-top: 12px;
}

.policy-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.policy-table th,
.policy-table td {
    border: 1px solid var(--border-color);
    padding: 12px 14px;
    text-align: left;
}

.policy-table th {
    background: var(--bg-subtle);
    font-weight: 700;
}

.policy-contact-box {
    margin-top: 16px;
    padding: 18px 20px;
    border-radius: var(--radius-md);
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
}

.policy-contact-box h4 {
    margin-bottom: 6px;
}

@media (max-width: 820px) {
    .paywall-body {
        grid-template-columns: 1fr;
    }

    .qr-box {
        flex-direction: column;
        text-align: center;
    }
}


/* ============================================================
   2-WAY MODE SWITCHER TABS (WORD -> PDF | PDF -> WORD)
   ============================================================ */
.mode-switcher-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 14px 24px 0;
    background: var(--bg-subtle);
}

.mode-tab {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 16px;
    border-radius: 12px 12px 0 0;
    border: 1px solid var(--border-color);
    border-bottom: none;
    background: var(--bg-hover);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 14.5px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.mode-tab:hover {
    color: var(--text-primary);
}

.mode-tab.active {
    background: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-strong);
    box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.04);
}

.mode-badge {
    font-size: 11px;
    font-weight: 800;
    padding: 2px 7px;
    border-radius: 5px;
    color: #fff;
}

.mode-badge.word {
    background: var(--brand-blue);
}

.mode-badge.pdf {
    background: var(--brand-red);
}

.docx-preview-modal-body {
    padding: 24px;
    background: #334155;
    min-height: 100%;
}

/* ============================================================
   CONTACT US SECTION
   ============================================================ */
.contact-section {
    margin-top: 24px;
}

.contact-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 24px 28px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.contact-info {
    max-width: 520px;
}

.contact-pill {
    display: inline-block;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--brand-blue);
    background: var(--brand-blue-soft);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 8px;
}

.contact-info h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.contact-info p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.contact-channels {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.contact-channel-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    border-radius: 12px;
    background: var(--bg-subtle);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: all 0.16s ease;
}

.contact-channel-item:hover {
    border-color: var(--brand-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.contact-channel-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-channel-icon.email {
    background: rgba(225, 29, 72, 0.1);
    color: var(--brand-red);
}

.contact-channel-icon.zalo {
    background: rgba(37, 99, 235, 0.12);
    color: var(--brand-blue);
}

.contact-channel-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-channel-text span {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.contact-channel-text strong {
    font-size: 14.5px;
    color: var(--text-primary);
    font-weight: 700;
}

@media (max-width: 820px) {
    .contact-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .contact-channels {
        width: 100%;
    }

    .contact-channel-item {
        flex: 1 1 220px;
    }
}