/* ═══════════════════════════════════════════════════════════
   MyPeptideApp — Component Styles
   Reusable UI components used throughout the application.
   ═══════════════════════════════════════════════════════════ */

/* ─── Buttons ──────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--duration-fast) var(--ease-in-out);
    text-decoration: none;
    user-select: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}
.btn-primary:hover { background-color: var(--color-primary-hover); color: var(--color-text-inverse); }
.btn-primary:active { background-color: var(--color-primary-active); color: var(--color-text-inverse); }
.btn-primary:focus-visible { box-shadow: var(--shadow-focus); }

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}
.btn-secondary:hover { background-color: var(--color-bg-tertiary); color: var(--color-text-primary); }

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-text-inverse);
}
.btn-danger:hover { background-color: var(--color-danger-dark); color: var(--color-text-inverse); }

.btn-ghost {
    background: transparent;
    color: var(--color-text-secondary);
}
.btn-ghost:hover { background-color: var(--color-bg-tertiary); color: var(--color-text-primary); }

.btn-link {
    background: transparent;
    color: var(--color-primary);
    padding: 0;
    border-radius: 0;
}
.btn-link:hover { color: var(--color-primary-hover); text-decoration: underline; }

.btn-sm {
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-md);
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-md);
}

.btn-icon-sm {
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: var(--radius-sm);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-rounded {
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    box-shadow: var(--shadow-sm);
}

.btn-rounded:hover {
    box-shadow: var(--shadow-md);
}

.btn .btn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: var(--radius-full);
    animation: spin 0.6s linear infinite;
}

/* ─── Cards ────────────────────────────────────────────── */
.card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    transition: box-shadow var(--duration-normal) var(--ease-in-out);
}

.card-hover:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-4);
}

.card-title {
    font-size: var(--text-md);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
}

.card-subtitle {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    margin-top: var(--space-1);
}

.card-body {
    /* Content area */
}

/* Chart containers bleed into card padding on mobile for max width */
@media (max-width: 768px) {
    .card-body--chart > div {
        margin-left: calc(-1 * var(--space-2));
        margin-right: calc(-1 * var(--space-2));
    }
}

.card-footer {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border-light);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-2);
}

/* ─── Form Controls ────────────────────────────────────── */
.form-group {
    margin-bottom: var(--space-4);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-base);
    line-height: 1.5;
    color: var(--color-text-primary);
    background-color: var(--color-input-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--duration-fast) var(--ease-in-out),
                box-shadow var(--duration-fast) var(--ease-in-out);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-border-strong);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus);
}

.form-input::placeholder {
    color: var(--color-text-tertiary);
}

.form-input.is-invalid {
    border-color: var(--color-danger);
}

.form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
}

.form-error {
    font-size: var(--text-xs);
    color: var(--color-danger);
    margin-top: var(--space-1);
}

.form-hint {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin-top: var(--space-1);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='m4.427 6.927 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 6.5H4.604a.25.25 0 0 0-.177.427z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    padding-right: var(--space-10);
}

.form-textarea {
    min-height: 80px;
    resize: vertical;
}

/* Checkbox & Toggle */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.toggle {
    position: relative;
    display: inline-flex;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background-color: var(--color-border-strong);
    border-radius: var(--radius-full);
    transition: background-color var(--duration-fast) var(--ease-in-out);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background-color: var(--color-white);
    border-radius: var(--radius-full);
    transition: transform var(--duration-fast) var(--ease-in-out);
    box-shadow: var(--shadow-sm);
}

.toggle input:checked + .toggle-slider {
    background-color: var(--color-primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(20px);
}

/* ─── Segmented Control ────────────────────────────────── */
.segmented-control {
    display: inline-flex;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.segment-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    background: transparent;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-in-out);
    white-space: nowrap;
}

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

.segment-btn.active {
    background: var(--color-white);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-xs);
}

/* Mobile dropdown replacement for segmented controls inside card-headers */
.segment-select {
    width: auto;
    min-width: 80px;
    padding: var(--space-1) var(--space-8) var(--space-1) var(--space-3);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
}

/* ─── Badge ────────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    min-height: 20px;
    padding: 0 5px;
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    line-height: 1;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    aspect-ratio: 1;
}

.badge-primary {
    background: var(--color-text-tertiary);
    color: var(--color-bg);
}

.badge-success {
    background: var(--color-success-light);
    color: var(--color-success-dark);
}

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

.badge-danger {
    background: var(--color-danger-light);
    color: var(--color-danger-dark);
}

/* ─── Modal ────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-overlay);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-normal) var(--ease-in-out),
                visibility var(--duration-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(16px) scale(0.98);
    transition: transform var(--duration-normal) var(--ease-out);
}

.modal-overlay.active .modal {
    transform: translateY(0) scale(1);
}

.modal-sm { max-width: 400px; }
.modal-md { max-width: 520px; }
.modal-lg { max-width: 680px; }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-5) 0;
}

.modal-title {
    font-size: var(--text-lg);
    font-weight: var(--weight-semibold);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    color: var(--color-text-tertiary);
    transition: var(--transition-colors);
}

.modal-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.modal-body {
    padding: var(--space-5);
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-3);
    padding: 0 var(--space-5) var(--space-5);
}

/* ─── Toast Notifications ──────────────────────────────── */
.toast-container {
    position: fixed;
    top: var(--space-4);
    right: var(--space-4);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-size: var(--text-sm);
    pointer-events: auto;
    animation: toast-in var(--duration-normal) var(--ease-out) forwards;
    max-width: 380px;
}

.toast-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.toast-success .toast-icon { color: var(--color-success); }
.toast-error .toast-icon { color: var(--color-danger); }
.toast-info .toast-icon { color: var(--color-info); }
.toast-warning .toast-icon { color: var(--color-warning); }

.toast.removing {
    animation: toast-out var(--duration-fast) var(--ease-in-out) forwards;
}

/* ─── Data Table ───────────────────────────────────────── */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
    white-space: nowrap;
}

.data-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.data-table th.sortable:hover {
    color: var(--color-text-primary);
}

.data-table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border-light);
    font-size: var(--text-base);
    vertical-align: middle;
}

.data-table tbody tr:hover {
    background: var(--color-bg-secondary);
}

.data-table .row-actions {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    justify-content: flex-end;
}

/* ─── Table Responsive & Mobile ───────────────────────── */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
    .data-table th,
    .data-table td {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
        white-space: nowrap;
    }

    .data-table th:first-child,
    .data-table td:first-child {
        padding-left: var(--space-4);
    }

    .data-table th:last-child,
    .data-table td:last-child {
        padding-right: var(--space-4);
    }
}

/* ─── FAB (Floating Action Button) ─────────────────────── */
.fab {
    position: fixed;
    bottom: var(--fab-bottom-desktop);
    right: var(--space-6);
    width: var(--fab-size);
    height: var(--fab-size);
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: var(--color-text-inverse);
    border: none;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    z-index: var(--z-fab);
    display: none;
    align-items: center;
    justify-content: center;
    transition: transform var(--duration-fast) var(--ease-out),
                background-color var(--duration-fast) var(--ease-in-out),
                box-shadow var(--duration-fast) var(--ease-in-out);
}

.fab:hover {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow-xl);
    transform: scale(1.05);
}

.fab:active {
    transform: scale(0.95);
}

.fab-hidden {
    display: none !important;
}

.fab svg {
    width: 24px;
    height: 24px;
}

/* ─── Empty State ──────────────────────────────────────── */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-4);
    text-align: center;
}

.empty-state-icon {
    width: 48px;
    height: 48px;
    color: var(--color-border-strong);
    margin-bottom: var(--space-4);
}

.empty-state-title {
    font-size: var(--text-md);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
}

.empty-state-text {
    font-size: var(--text-sm);
    color: var(--color-text-tertiary);
    max-width: 360px;
    line-height: 1.5;
    margin-bottom: var(--space-5);
}

.empty-state .btn {
    margin-top: 0;
}

/* Compact: for charts and small containers */
.empty-state--compact {
    padding: var(--space-8) var(--space-4);
}

.empty-state--compact .empty-state-icon {
    width: 32px;
    height: 32px;
    margin-bottom: var(--space-3);
}

.empty-state--compact .empty-state-title {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
}

.empty-state--compact .empty-state-text {
    font-size: var(--text-xs);
    margin-bottom: 0;
}

/* ─── Chip / Pill ──────────────────────────────────────── */
.chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: var(--weight-medium);
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    white-space: nowrap;
    cursor: pointer;
    border: 1px solid transparent;
    transition: var(--transition-colors);
}

.chip:hover {
    background: var(--color-border);
}

.chip.active {
    background: var(--color-success);
    color: #FFFFFF;
    border-color: var(--color-success);
}

/* ─── Peptide Color Dot ────────────────────────────────── */
.peptide-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

/* ─── Loading ──────────────────────────────────────────── */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.7s linear infinite;
}

.spinner-sm {
    width: 16px;
    height: 16px;
    border-width: 2px;
}

.skeleton {
    background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border-light) 50%, var(--color-bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: skeleton-pulse 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

/* ─── Pagination ───────────────────────────────────────── */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    margin-top: var(--space-5);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    transition: var(--transition-colors);
    flex-shrink: 0;
}

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

.pagination-btn.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.pagination-desktop,
.pagination-mobile {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    flex-wrap: wrap;
    width: 100%;
}

.pagination-info {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-secondary);
    padding: 0 var(--space-3);
    white-space: nowrap;
}

.pagination-ellipsis {
    cursor: default;
}
.pagination-ellipsis:hover {
    background: transparent;
    color: var(--color-text-secondary);
}

/* ─── Animations ───────────────────────────────────────── */
@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(24px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(24px);
    }
}

@keyframes skeleton-pulse {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slide-up {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ─── Mobile Toast ─────────────────────────────────────── */
@media (max-width: 768px) {
    .toast-container {
        left: var(--space-4);
        right: var(--space-4);
        top: var(--space-4);
    }

    .toast {
        max-width: 100%;
    }

    .fab {
        display: flex;
        bottom: var(--fab-bottom-mobile);
    }
}

/* ─── Theme Toggle ────────────────────────────────────── */
.theme-switcher-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
}

.theme-switcher-label {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
}

.theme-toggle {
    display: inline-flex;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 3px;
    gap: 2px;
}

.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 26px;
    border: none;
    background: transparent;
    border-radius: var(--radius-sm);
    color: var(--color-text-tertiary);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-in-out);
}

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

.theme-toggle-btn.active {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-xs);
}

/* ─── Smooth Theme Transition ─────────────────────────── */
html.theme-transitioning,
html.theme-transitioning *,
html.theme-transitioning *::before,
html.theme-transitioning *::after {
    transition: background-color 200ms var(--ease-in-out),
                color 200ms var(--ease-in-out),
                border-color 200ms var(--ease-in-out),
                box-shadow 200ms var(--ease-in-out),
                fill 200ms var(--ease-in-out),
                stroke 200ms var(--ease-in-out) !important;
}

/* ─── Dark Mode Overrides ─────────────────────────────── */
[data-theme="dark"] .form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2371717A' viewBox='0 0 16 16'%3E%3Cpath d='m4.427 6.927 3.396 3.396a.25.25 0 0 0 .354 0l3.396-3.396A.25.25 0 0 0 11.396 6.5H4.604a.25.25 0 0 0-.177.427z'/%3E%3C/svg%3E");
}

[data-theme="dark"] .form-input.is-invalid:focus {
    box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.2);
}

[data-theme="dark"] img {
    opacity: 0.95;
}

[data-theme="dark"] .skeleton {
    background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border) 50%, var(--color-bg-tertiary) 75%);
    background-size: 200% 100%;
}

/* ApexCharts tooltip dark mode */
[data-theme="dark"] .apexcharts-tooltip {
    background: #1A1A1A !important;
    border-color: #333333 !important;
    color: #F5F5F5 !important;
    box-shadow: none !important;
}

[data-theme="dark"] .apexcharts-tooltip .apexcharts-tooltip-title {
    background: #262626 !important;
    border-bottom-color: #333333 !important;
    color: #F5F5F5 !important;
}

[data-theme="dark"] .apexcharts-tooltip .apexcharts-tooltip-text-y-label,
[data-theme="dark"] .apexcharts-tooltip .apexcharts-tooltip-text-y-value,
[data-theme="dark"] .apexcharts-tooltip .apexcharts-tooltip-text {
    color: #F5F5F5 !important;
}

[data-theme="dark"] .apexcharts-xaxistooltip {
    background: #1A1A1A !important;
    border-color: #333333 !important;
    color: #F5F5F5 !important;
}

[data-theme="dark"] .apexcharts-xaxistooltip::before,
[data-theme="dark"] .apexcharts-xaxistooltip::after {
    border-bottom-color: #1A1A1A !important;
}

/* ApexCharts toolbar icons */
[data-theme="dark"] .apexcharts-toolbar svg {
    fill: #A1A1AA !important;
}

/* Hide tooltip rows for null/empty data points in shared tooltips */
.apexcharts-tooltip-series-group:has(.apexcharts-tooltip-text-y-value:empty) {
    display: none !important;
}

/* Fix 3: Active chip text black in dark mode */
/* ─── Auth Prompt Modal (Guest CTA) ──────────────────────── */
.auth-prompt {
    text-align: center;
    padding: var(--space-2) 0 var(--space-1);
}

.auth-prompt-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-4);
    color: var(--color-text-primary);
}

.auth-prompt-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin: 0 0 var(--space-5);
}

.auth-prompt-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-6);
    text-align: left;
}

.auth-prompt-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
}

.auth-prompt-feature svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.auth-prompt-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.auth-prompt-cta {
    font-size: var(--text-base) !important;
    padding: var(--space-3) var(--space-6) !important;
    font-weight: var(--weight-semibold) !important;
}

.auth-prompt-note {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin: var(--space-3) 0 0;
}

/* ─── Guest CTA Card (for locked pages) ──────────────────── */
.guest-cta-card {
    text-align: center;
    padding: var(--space-10) var(--space-6);
    max-width: 480px;
    margin: var(--space-8) auto;
}

.guest-cta-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-full);
    background: var(--color-bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--space-5);
    color: var(--color-text-primary);
}

.guest-cta-title {
    font-size: var(--text-xl);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    margin: 0 0 var(--space-2);
    letter-spacing: -0.02em;
}

.guest-cta-subtitle {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0 0 var(--space-6);
}

.guest-cta-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-8);
    text-align: left;
    display: inline-block;
}

.guest-cta-feature {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) 0;
    font-size: var(--text-sm);
    color: var(--color-text-primary);
}

.guest-cta-feature svg {
    color: var(--color-success);
    flex-shrink: 0;
}

.guest-cta-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    max-width: 320px;
    margin: 0 auto;
}

.guest-cta-actions .btn {
    justify-content: center;
}

.guest-cta-actions .btn-primary {
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-6);
    font-weight: var(--weight-semibold);
}

.guest-cta-note {
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
    margin: var(--space-3) 0 0;
}

/* ─── Page Loader ────────────────────────────────────── */
.page-loader {
    position: fixed;
    top: 0;
    bottom: 0;
    left: var(--sidebar-width);
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    z-index: 50;
    transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
    .page-loader {
        left: 0;
        bottom: var(--bottom-nav-height);
    }
}
.page-loader.page-loader--hidden {
    opacity: 0;
    pointer-events: none;
}
.page-loader-spinner {
    width: 32px;
    height: 32px;
    border: 2.5px solid var(--color-border-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ═══════════════════════════════════════════════════════════
   Mobile Form & Modal Fixes
   Safari iOS date/time pickers have native chrome (icons,
   arrows) that can extend beyond the CSS content box.
   Fix: strip native appearance on mobile + stack vertically +
   clip overflow at every container level.
   ═══════════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    /* Modal containers: clip all overflow */
    .modal {
        overflow-x: hidden;
    }

    .modal-body {
        overflow: hidden;
    }

    /* Stack date/time rows vertically on mobile */
    .form-row-dates {
        flex-direction: column;
        gap: 0 !important;
        overflow: hidden;
    }

    /* Children: force full width, override flex-1 */
    .form-row-dates > .form-group {
        width: 100% !important;
        min-width: 0 !important;
        max-width: 100% !important;
        flex: none !important;
        overflow: hidden;
    }

    /* Date/time inputs: strip native safari appearance to prevent
       internal picker chrome from extending beyond the border box.
       The native date picker sheet still opens on tap in iOS 16+.
       min-height prevents empty inputs from collapsing. */
    input[type="date"].form-input,
    input[type="time"].form-input,
    input[type="datetime-local"].form-input {
        -webkit-appearance: none;
        appearance: none;
        width: 100% !important;
        min-width: 0 !important;
        max-width: 100% !important;
        min-height: 42px;
        overflow: hidden;
    }
}

/* ─── Note Cell (clickable truncated notes) ────────── */
.note-cell {
    cursor: pointer;
    transition: color var(--duration-fast);
}
.note-cell:hover {
    color: var(--color-primary) !important;
}

/* ─── Note Detail Modal ────────────────────────────── */
.note-detail-header {
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-3);
}

.note-detail-grid {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-1) var(--space-4);
    margin-bottom: var(--space-4);
}

.note-detail-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border-light);
    gap: var(--space-3);
}
.note-detail-row:last-child {
    border-bottom: none;
}

.note-detail-label {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    flex-shrink: 0;
}

.note-detail-value {
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-text-primary);
    text-align: right;
}

.note-detail-text {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    margin-bottom: var(--space-4);
}

.note-detail-meta {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border-light);
    font-size: var(--text-xs);
    color: var(--color-text-tertiary);
}
.note-detail-meta span:not(:last-child)::after {
    content: '·';
    margin-left: var(--space-2);
}