/* =========================================
   1. CSS Variables & Theming (SaaS Professional)
========================================= */
:root[data-theme="light"] {
    --bg-base: #f4f4f5;
    /* Zinc 100 */
    --bg-surface: #ffffff;
    --bg-hover: #f4f4f5;

    --text-main: #09090b;
    /* Zinc 950 */
    --text-muted: #71717a;
    /* Zinc 500 */

    --border-color: #e4e4e7;
    /* Zinc 200 */
    --border-focus: #18181b;

    --primary: #18181b;
    /* Zinc 900 */
    --primary-hover: #27272a;
    /* Zinc 800 */
    --primary-text: #ffffff;

    --success: #10b981;
    --success-bg: #ecfdf5;
    --success-border: #a7f3d0;

    --danger: #ef4444;
    --danger-bg: #fef2f2;

    --warning: #f59e0b;
    --warning-bg: #fffbeb;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.05), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.02);
}

:root[data-theme="dark"] {
    --bg-base: #09090b;
    /* Zinc 950 */
    --bg-surface: #18181b;
    /* Zinc 900 */
    --bg-hover: #27272a;

    --text-main: #fafafa;
    /* Zinc 50 */
    --text-muted: #a1a1aa;
    /* Zinc 400 */

    --border-color: #27272a;
    /* Zinc 800 */
    --border-focus: #fafafa;

    --primary: #fafafa;
    /* Zinc 50 */
    --primary-hover: #e4e4e7;
    /* Zinc 200 */
    --primary-text: #09090b;

    --success: #34d399;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-border: rgba(16, 185, 129, 0.2);

    --danger: #f87171;
    --danger-bg: rgba(239, 68, 68, 0.1);

    --warning: #fbbf24;
    --warning-bg: rgba(245, 158, 11, 0.1);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

/* =========================================
   2. Global Reset & Layout
========================================= */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
}

a,
button,
input,
textarea,
select {
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-base);
    color: var(--text-main);
    transition: background-color 0.2s ease, color 0.2s ease;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

/* =========================================
   3. Main Architecture
========================================= */
.dashboard-layout {
    display: flex;
    height: 100vh;
    width: 100%;
}

.guest-layout {
    justify-content: center;
    align-items: center;
}

.guest-header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    z-index: 50;
}

.sidebar {
    width: 260px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2rem 1rem;
    flex-shrink: 0;
    z-index: 10;
    height: 100%;
    position: sticky;
    top: 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 0.5rem 2rem;
    margin-bottom: 1rem;
}

.logo-icon {
    color: var(--text-main);
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-grow: 1;
}

.tab-btn {
    padding: 0.75rem 1rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    text-align: left;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.tab-btn:hover {
    background: var(--bg-hover);
    color: var(--text-main);
}

.tab-btn.active {
    background: var(--bg-hover);
    color: var(--text-main);
    font-weight: 600;
}

.tab-btn-danger:hover {
    background: var(--danger-bg);
    color: var(--danger);
}

.sidebar-footer {
    padding-top: 1rem;
    margin-top: auto;
}

/* Main Content Area */
.main-area {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-width: 0;
}

.guest-layout .main-area {
    align-items: center;
}

.content-panel {
    width: 100%;
    max-width: 600px;
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    transition: max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 1rem 0;
}

.content-panel.wide-panel {
    max-width: 1200px;
    margin: 0;
}

.tab-content {
    animation: fadeIn 0.3s forwards;
}

.panel-header {
    display: none;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* =========================================
   4. Forms & Inputs
========================================= */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: inline-flex;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: var(--bg-base);
    color: var(--text-main);
    font-size: 0.95rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 1px var(--border-focus);
    background: var(--bg-surface);
}

.form-control:-webkit-autofill,
.form-control:-webkit-autofill:hover,
.form-control:-webkit-autofill:active {
    -webkit-text-fill-color: var(--text-main);
    box-shadow: 0 0 0 1000px var(--bg-base) inset;
    -webkit-box-shadow: 0 0 0 1000px var(--bg-base) inset;
    border: 1px solid var(--border-color);
    transition: background-color 9999s ease-in-out 0s;
}

.form-control:-webkit-autofill:focus {
    -webkit-text-fill-color: var(--text-main);
    box-shadow: 0 0 0 1000px var(--bg-surface) inset, 0 0 0 1px var(--border-focus);
    -webkit-box-shadow: 0 0 0 1000px var(--bg-surface) inset, 0 0 0 1px var(--border-focus);
    border: 1px solid var(--border-focus);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.otp-input {
    letter-spacing: 2px;
    font-family: monospace;
    font-size: 1.25rem;
    text-align: center;
    text-transform: uppercase;
}

.password-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: var(--text-main);
}

/* Checkbox */
.checkbox-wrapper {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.checkbox-wrapper input {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-surface);
    display: grid;
    place-content: center;
    cursor: pointer;
    transition: all .15s ease;
}

.checkbox-wrapper input:hover {
    border-color: var(--border-focus);
    background: var(--bg-hover);
}

.checkbox-wrapper input::after {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: var(--radius-sm);
    transform: scale(0);
    background: var(--primary);
    transition: transform .12s ease;
}

.checkbox-wrapper input:checked {
    border-color: var(--primary);
    background: var(--bg-hover);
}

.checkbox-wrapper input:checked::after {
    transform: scale(1);
}

.checkbox-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
}

.hidden-password-field {
    display: none;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
}

.hidden-password-field.show {
    display: block;
    animation: fadeIn 0.2s forwards;
}

/* Drop Zone */
.drop-zone {
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    background: var(--bg-base);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--border-focus);
    background: var(--bg-hover);
}

.drop-zone-input {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.drop-icon {
    color: var(--text-muted);
}

.drop-text {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* =========================================
   5. Buttons
========================================= */
.action-group {
    display: flex;
    gap: 10px;
    margin-top: 1.5rem;
}

.action-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 1.5rem;
}

.action-group .btn:nth-child(1),
.action-group .btn:nth-child(2) {
    flex: 1 1 calc(50% - 5px);
}

.action-group .btn:nth-child(3) {
    flex: 1 1 100%;
}


.btn {
    padding: 0.75rem 1.25rem;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: 'Inter', sans-serif;
}

.btn:active {
    transform: scale(0.98);
}

.btn-full {
    width: 100%;
    flex: 1;
}

.btn-primary {
    background: var(--primary);
    color: var(--primary-text);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: var(--bg-hover);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: var(--radius-md);
    font-size: 0.78rem;
    font-weight: 600;
    text-decoration: none;
    background: var(--bg-hover);
}

.btn-outline:hover {
    background: var(--bg-hover);
    border-color: var(--text-muted);
}

.btn-sm {
    padding: 0.5rem 0.875rem;
    font-size: 0.85rem;
}

.btn-icon-danger {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: var(--radius-sm);
}

.btn-icon-danger:hover {
    color: var(--danger);
    background: var(--danger-bg);
}

.btn-loadable.loading {
    color: transparent !important;
    pointer-events: none;
    position: relative;
}

.btn-loadable.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: currentColor;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: spin 0.6s infinite linear;
}

.btn-primary.loading::after {
    border-top-color: var(--primary-text);
    border-left-color: var(--primary-text);
    border-right-color: var(--primary-text);
    border-bottom-color: transparent;
}

/* Theme Button */
.theme-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.theme-btn:hover {
    color: var(--text-main);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* =========================================
   6. Data Display (Results & Grid)
========================================= */
.generated-code-box {
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

.generated-code-box h3 {
    font-size: 2rem;
    letter-spacing: 2px;
    margin: 10px 0 20px;
    color: var(--text-main);
    font-family: monospace;
    font-weight: 700;
}

.retrieved-content {
    background: var(--bg-base);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.retrieved-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.retrieved-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.box-text-content {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-main);
    margin-bottom: 1.5rem;
    white-space: pre-wrap;
    word-break: break-word;
}

.file-download {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-direction: column;
    gap: 20px;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
}

/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--bg-hover);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

/* Workspace Grid */
.workspace-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
}

@media (max-width: 768px) {
    .workspace-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 2fr));
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .workspace-grid {
        grid-template-columns: 2fr;
    }
}

.workspace-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.workspace-card:hover {
    border-color: var(--text-muted);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.workspace-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-hover);
}

.workspace-code {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: monospace;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-main);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.workspace-code:hover {
    background: var(--bg-base);
}

.workspace-code:active {
    transform: scale(0.98);
}

.workspace-preview {
    width: 100%;
    height: 100px;
    overflow: hidden;
    background: var(--bg-base);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
}

.workspace-preview::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0);
    transition: background 0.2s;
}

.workspace-preview:hover::after {
    background: rgba(0,0,0,0.1);
}

.workspace-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.workspace-file-icon {
    width: 100%;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    color: var(--text-muted);
}

.workspace-file-icon svg {
    width: 40px;
    height: 40px;
}

.workspace-text-icon {
    width: 100%;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    color: var(--text-muted);
}

.workspace-card-body {
    padding: 0.5rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-height: 60px;
    height: 60px !important;
    max-height: 60px;
}

.workspace-filename {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.workspace-filemeta {
    display: flex;
    gap: 10px;
    font-size: 0.75rem;
}

.workspace-fileext {
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.workspace-filesize {
    color: var(--text-muted);
}

.workspace-text-preview {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.workspace-empty {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-style: italic;
}

.workspace-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding: 0.4rem 0.5rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-hover);
    height: 40px;
}

.workspace-footer-left {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    flex: 1;
}

.workspace-views {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
}

.workspace-views svg {
    opacity: 0.7;
}

.empty-state {
    text-align: center;
    padding: 4rem 1rem;
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

/* =========================================
   7. Toast Notifications (SaaS Style)
========================================= */
#toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-end;
}

.toast {
    min-width: 250px;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    color: var(--bg-surface);
    background: var(--text-main);
    font-size: 0.9rem;
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards, fadeOutRight 0.3s ease 4s forwards;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.error {
    background: var(--danger);
    color: white;
}

.toast.warning {
    background: var(--warning);
    color: black;
}

.image-preview-container {
    margin-top: 1rem;
    text-align: center;
}

.image-preview {
    max-width: 100%;
    max-height: 250px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.25);
    object-fit: contain;
}


@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeOutRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(20px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }

    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

/* =========================================
   8. Mobile Responsive
========================================= */
@media (max-width: 768px) {
    .payload-header {
        align-items: center;
        margin-bottom: 12px;
    }

    .payload-header-left {
        gap: 10px;
    }

    .payload-badges {
        gap: 4px;
    }

    .text-content-pre {
        font-size: 0.88rem;
        line-height: 1.75;
    }

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

    .dashboard-layout {
        flex-direction: column;
        height: 100dvh;
    }

    .otp-boxes {
        gap: 6px;
    }

    .otp-box {
        width: calc((100vw - 80px) / 8);
        max-width: 44px;
        min-width: 32px;
        height: 48px;
        font-size: 1.05rem;
    }

    .otp-separator {
        width: 10px;
        flex-basis: 10px;
    }

    .sidebar {
        position: fixed !important;
        bottom: 0;
        left: 0;
        width: 100%;
        height: auto !important;
        padding: 0.5rem 1rem calc(0.5rem + env(safe-area-inset-bottom));
        flex-direction: row;
        border-top: 1px solid var(--border-color);
        border-right: none;
        box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.02);
        z-index: 100;
        top: unset !important;
    }

    .logo-container {
        display: none;
    }

    .sidebar-footer {
        display: none;
    }

    /* Hide logout text, maybe put an icon in top header */

    .sidebar-nav {
        flex-direction: row;
        width: 100%;
        justify-content: space-around;
    }

    .tab-btn {
        flex-direction: column;
        padding: 0.5rem;
        font-size: 0.7rem;
        gap: 6px;
        width: auto;
        background: transparent !important;
    }

    .tab-icon {
        margin: 0;
    }

    .tab-btn.active {
        color: var(--text-main);
    }

    .main-area {
        padding: 1rem 0.5rem calc(60px + env(safe-area-inset-bottom)) 0.5rem;
        min-height: 100dvh;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .content-panel {
        padding: 1.25rem;
        border-radius: var(--radius-lg);
        background: var(--bg-surface);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        margin-bottom: calc(12px + env(safe-area-inset-bottom));
    }

    .form-group {
        margin-bottom: 1.4rem;
    }

    .drop-zone {
        padding: 2rem 1rem;
        gap: 10px;
    }

    .drop-icon {
        width: 32px;
        height: 32px;
    }

    .expire-buttons {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .expire-btn span {
        text-align: center;
        padding: 0.65rem;
        font-size: 0.85rem;
    }

    .btn-primary {
        padding: 0.9rem 1.2rem;
        font-size: 0.95rem;
    }

    .card-title {
        font-size: 1.3rem;
    }

    .card-subtitle {
        font-size: 0.85rem;
    }

    .theme-btn {
        top: 1.25rem;
        right: 1.25rem;
        bottom: auto;
        left: auto;
        width: 36px;
        height: 36px;
        box-shadow: none;
        border-color: transparent;
        background: transparent;
    }

    .guest-header {
        padding: 1.25rem 1rem;
    }

    #toast-container {
        bottom: calc(80px + env(safe-area-inset-bottom));
        right: 1rem;
        left: 1rem;
        align-items: center;
    }

    .toast {
        width: 100%;
        justify-content: center;
    }
}

.expire-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.expire-btn input {
    display: none;
}

.expire-btn span {
    display: block;
    padding: 0.55rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-base);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all .15s;
    color: var(--text-muted);
}

.expire-btn input:checked+span {
    background: var(--bg-hover);
    color: var(--text-main);
    border-color: var(--border-focus);
}

.expire-btn.danger input:checked+span {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: var(--danger);
}

.otp-boxes {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    max-width: 100%;
    flex-wrap: nowrap;
}

.otp-box {
    width: 44px;
    min-width: 0;
    flex: 1 1 44px;
    height: 52px;
    text-align: center;
    font-size: 1.2rem;
    font-weight: 600;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    color: var(--text-main);
    caret-color: transparent;
    transition: border-color 0.2s, box-shadow 0.2s;
    box-shadow: var(--shadow-sm);
}

.otp-box:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: var(--shadow-md);
}

.otp-separator {
    width: 16px;
    height: 2px;
    background: var(--border-color);
    border-radius: 2px;
    flex: 0 0 16px;
    flex-shrink: 0;
}

.clipboard-suggest {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 10px auto 0;
    padding: 6px 14px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--bg-surface);
    border: 1.5px dashed var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
}

.clipboard-suggest:hover {
    border-color: var(--border-focus);
    color: var(--text-main);
}

#clipboardCodePreview {
    font-family: monospace;
    letter-spacing: 1px;
    color: var(--text-main);
}

/* ── Payload Wrapper ── */
.payload-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.payload-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    text-decoration: none;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.payload-back-btn:hover {
    background: var(--bg-hover);
    border-color: var(--border-focus);
    color: var(--text-main);
}

.payload-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.payload-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.badge-eye-icon {
    flex-shrink: 0;
}

.payload-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    flex-shrink: 0;
}

.payload-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 2px;
}

.payload-code {
    font-family: monospace;
    letter-spacing: 1px;
}

.payload-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin: 0;
}

.payload-badges {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* ── Meta row ── */
.payload-meta {
    display: none;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ── Divider ── */
.payload-divider {
    display: none;
}

/* ── Sections ── */
.payload-section {
    margin-bottom: 14px;
}

.payload-caption-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 14px;
}

.payload-download-only {
    margin-top: 14px;
}

.section-label {
    display: none;
}

/* ── Text content ── */
.text-content-box {
    position: relative;
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 8px 0 0 0;
}

.payload-caption-box {
    margin-top: 10px;
    padding: 14px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.text-content-pre {
    margin: 0;
    font-family: inherit;
    font-size: 0.92rem;
    color: var(--text-main);
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.8;
}

.copy-btn {
    position: static;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 0;
    padding: 8px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-main);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.copy-btn:hover {
    color: var(--text-main);
    border-color: var(--border-focus);
    background: var(--bg-hover);
}

/* ── Media previews ── */
.media-preview-box {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-hover);
}

.media-preview-img {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    display: block;
    cursor: zoom-in;
    padding: 12px;
    box-sizing: border-box;
}

.pdf-preview {
    width: 100%;
    height: 420px;
    border: none;
    display: block;
}

.video-preview {
    width: 100%;
    max-height: 360px;
    display: block;
    background: #000;
}

.audio-preview {
    width: 100%;
    padding: 16px;
    box-sizing: border-box;
}

/* ── File card (unknown types) ── */
.file-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 14px 16px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
}

.file-card-icon {
    color: var(--text-muted);
    flex-shrink: 0;
}

.file-card-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.file-card-name {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-card-ext {
    font-size: 0.72rem;
    color: var(--text-muted);
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* ── One-time notice ── */
.one-time-notice {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 14px;
    background: var(--warning-bg);
    border: 1px solid var(--warning);
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    color: var(--warning);
    margin-bottom: 20px;
    line-height: 1.5;
}

/* ── Footer ── */
.payload-footer {
    display: none;
}

.payload-footer .btn {
    flex: 1;
}

.payload-wrapper .media-preview-box + .payload-section .text-content-box,
.payload-wrapper .file-card + .payload-section .text-content-box {
    margin-top: 10px;
}

.payload-wrapper .media-preview-box + .payload-section,
.payload-wrapper .file-card + .payload-section {
    margin-top: 10px;
}

.payload-wrapper .media-preview-box + .payload-section .copy-btn,
.payload-wrapper .file-card + .payload-section .copy-btn {
    margin-top: 12px;
}

.payload-wrapper .file-card .btn,
.payload-wrapper .media-preview-box + .payload-footer .btn-primary {
    width: auto;
}

.payload-wrapper .file-card-info {
    flex: 1;
}

/* ── Badge dot ── */
.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: var(--radius-sm);
    background: currentColor;
    display: inline-block;
    margin-right: 2px;
}

/* ── Lightbox ── */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 92vw;
    max-height: 92vh;
    object-fit: contain;
    border-radius: var(--radius-md);
}

/* ── btn-sm ── */
.btn-sm {
    padding: 6px 12px;
    font-size: 0.82rem;
}

/* Upload Progress */
.upload-progress-wrapper {
    display: none;
    margin-top: 10px;
    padding: 12px 14px;
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    gap: 10px;
    flex-direction: column;
}
.upload-progress-wrapper.active {
    display: flex;
}
.upload-progress-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}
.upload-progress-filename {
    font-weight: 500;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
}
.upload-progress-stats {
    display: flex;
    gap: 10px;
    font-size: 11px;
    color: var(--text-muted);
}
.upload-progress-bar-track {
    width: 100%;
    height: 4px;
    background: var(--border-color);
    border-radius: 99px;
    overflow: hidden;
}
.upload-progress-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--primary);
    border-radius: 99px;
    transition: width 0.2s ease;
}
.upload-progress-bar-fill.done {
    background: var(--success);
}

/* =========================================
   9. Storage Indicator
========================================= */
.storage-widget {
    background: var(--bg-hover);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1rem;
    margin-bottom: 1.5rem;
}
.storage-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 8px;
}
.storage-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 99px;
    overflow: hidden;
    margin-bottom: 6px;
}
.storage-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 99px;
    transition: width 0.3s ease;
}
.storage-fill.warning { background: var(--warning); }
.storage-fill.danger { background: var(--danger); }

.storage-footer {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

.storage-minimal {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
    justify-content: flex-end;
}
.storage-minimal .storage-bar {
    width: 80px;
    height: 4px;
    margin: 0;
}
/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
    max-width: 420px;
    width: 90%;
    animation: slideUp 0.3s;
}

.modal-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-main);
}

.modal-body {
    padding: 1.5rem;
}

.modal-body p {
    margin: 0 0 8px 0;
    color: var(--text-main);
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.btn-spinner {
    display: inline-flex;
    align-items: center;
}

.spinner {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Image Preview Modal */
.modal-image {
    max-width: 90vw;
    max-height: 90vh;
    padding: 0;
    position: relative;
    background: transparent;
    box-shadow: none;
}

.modal-image img {
    max-width: 100%;
    max-height: 90vh;
    display: block;
    border-radius: var(--radius-md);
}

.modal-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: rgba(255,255,255,0.9);
    border: none;
    border-radius: var(--radius-md);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

.modal-close:hover {
    background: #fff;
}

.modal-close svg {
    color: #000;
}

.workspace-footer-left .badge-success {
    background: var(--primary);
    color: var(--primary-text);
    border-radius: var(--radius-sm);
    border: 0;
}

@media (hover: none) and (pointer: coarse) {
    .tab-btn:hover,
    .tab-btn-danger:hover,
    .toggle-password:hover,
    .checkbox-wrapper input:hover,
    .drop-zone:hover,
    .btn-primary:hover,
    .btn-secondary:hover,
    .btn-outline:hover,
    .btn-icon-danger:hover,
    .theme-btn:hover,
    .workspace-card:hover,
    .workspace-code:hover,
    .workspace-preview:hover::after,
    .clipboard-suggest:hover,
    .copy-btn:hover,
    .modal-close:hover {
        background: initial;
        color: inherit;
        border-color: inherit;
        box-shadow: none;
        transform: none;
    }

    .workspace-preview:hover::after {
        background: rgba(0,0,0,0);
    }

    .drop-zone:hover,
    .drop-zone.dragover {
        border-color: var(--border-color);
        background: var(--bg-base);
    }

    .btn-primary:hover {
        background: var(--primary);
        color: var(--primary-text);
    }

    .btn-secondary:hover {
        background: var(--bg-base);
        color: var(--text-main);
        border-color: var(--border-color);
    }

    .btn-outline:hover {
        background: transparent;
        color: var(--text-main);
        border-color: var(--border-color);
    }

    .tab-btn:hover {
        background: transparent;
        color: var(--text-muted);
    }

    .tab-btn.active:hover {
        background: transparent;
        color: var(--text-main);
    }

    .workspace-card:hover {
        border-color: var(--border-color);
        box-shadow: none;
    }

    .workspace-code:hover {
        background: transparent;
    }

    .theme-btn:hover {
        color: var(--text-muted);
    }

    .copy-btn:hover {
        color: var(--text-muted);
        border-color: var(--border-color);
        background: var(--bg-surface);
    }

    .clipboard-suggest:hover {
        border-color: var(--border-color);
        color: var(--text-muted);
    }

    .modal-close:hover {
        background: rgba(255,255,255,0.9);
    }
}