/* ===== Design Tokens (GitHub Primer-inspired) ===== */
:root {
    /* Canvas */
    --color-canvas-default: #ffffff;
    --color-canvas-subtle: #f6f8fa;
    --color-canvas-inset: #eff2f5;

    /* Foreground */
    --color-fg-default: #1f2328;
    --color-fg-muted: #656d76;
    --color-fg-on-emphasis: #ffffff;

    /* Borders */
    --color-border-default: #d0d7de;
    --color-border-muted: #d8dee4;

    /* Accent */
    --color-accent-fg: #0969da;
    --color-accent-subtle: #ddf4ff;
    --color-accent-border: #b6d7f4;

    /* Danger */
    --color-danger-fg: #d1242f;
    --color-danger-subtle: #ffebe9;

    /* Success / Primary button */
    --color-btn-primary-bg: #1f883d;
    --color-btn-primary-hover-bg: #1a7f37;

    /* Spacing (4px grid) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    --font-mono: 'SF Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 15px;
    --font-size-chat: 16px;
    --font-size-lg: 20px;
    --font-size-xl: 24px;

    /* Radii */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 0 rgba(31, 35, 40, 0.04);
    --shadow-md: 0 3px 6px rgba(140, 149, 159, 0.15);
    --shadow-overlay: 0 8px 24px rgba(140, 149, 159, 0.2);

    /* Sidebar */
    --sidebar-width: 260px;
}

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

/* ===== Base ===== */
body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
    height: 100dvh;
    display: flex;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 5px var(--space-4);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    font-weight: 500;
    line-height: 20px;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
    transition: background 0.1s, border-color 0.1s;
}

.btn:hover {
    background: var(--color-canvas-subtle);
    border-color: var(--color-border-default);
}

.btn:focus-visible {
    outline: 2px solid var(--color-accent-fg);
    outline-offset: -2px;
}

.btn-primary {
    background: var(--color-btn-primary-bg);
    color: var(--color-fg-on-emphasis);
    border-color: var(--color-btn-primary-bg);
}

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

.btn-danger {
    color: var(--color-danger-fg);
    border-color: var(--color-border-default);
    background: var(--color-canvas-default);
}

.btn-danger:hover {
    background: var(--color-danger-fg);
    color: var(--color-fg-on-emphasis);
    border-color: var(--color-danger-fg);
}

.btn-ghost {
    border: none;
    background: transparent;
    color: var(--color-fg-muted);
    padding: 5px var(--space-2);
}

.btn-ghost:hover {
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

.btn-icon {
    padding: var(--space-1);
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--color-fg-muted);
    border-radius: var(--radius-md);
}

.btn-icon:hover {
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

.btn-sm {
    padding: 3px var(--space-3);
    font-size: var(--font-size-sm);
    line-height: 18px;
}

/* ===== Form inputs ===== */
.form-input {
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    line-height: 20px;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-md);
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
    outline: none;
    transition: border-color 0.1s, box-shadow 0.1s;
}

.form-input:focus {
    border-color: var(--color-accent-fg);
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(31, 35, 40, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: modal-fade-in 0.15s ease-out;
}

.modal-dialog {
    background: var(--color-canvas-default);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-overlay);
    width: 90%;
    max-width: 400px;
    animation: modal-scale-in 0.15s ease-out;
}

.modal-header {
    padding: var(--space-4);
    font-weight: 600;
    font-size: var(--font-size-base);
    border-bottom: 1px solid var(--color-border-default);
}

.modal-body {
    padding: var(--space-4);
}

.modal-body .form-input {
    margin-top: var(--space-2);
}

.modal-footer {
    padding: var(--space-3) var(--space-4);
    display: flex;
    justify-content: flex-end;
    gap: var(--space-2);
    border-top: 1px solid var(--color-border-default);
}

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

@keyframes modal-scale-in {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--color-canvas-subtle);
    border-right: 1px solid var(--color-border-default);
    display: flex;
    flex-direction: column;
    padding: var(--space-3);
    flex-shrink: 0;
    z-index: 100;
}

.sidebar.animated {
    transition: transform 0.2s ease;
}

.sidebar-hidden .sidebar,
.sidebar.hidden {
    transform: translateX(-100%);
    position: absolute;
    height: 100%;
}

.sidebar-header {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.sidebar-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.sidebar-section-label {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--color-fg-muted);
    margin-top: var(--space-4);
    margin-bottom: var(--space-1);
    margin-left: var(--space-1);
}

#sidebar-logo {
    width: auto;
    height: auto;
    padding: 0;
}

#new-chat-btn {
    justify-content: flex-start;
    margin-top: var(--space-2);
}

#sidebar-logo img {
    border-radius: var(--radius-md);
}

.chat-list {
    flex: 1;
    overflow-y: auto;
    padding-right: var(--space-1);
}

.chat-list::-webkit-scrollbar {
    width: 6px;
}
.chat-list::-webkit-scrollbar-track {
    background: transparent;
}
.chat-list::-webkit-scrollbar-thumb {
    background: var(--color-border-muted);
    border-radius: var(--radius-full);
}
.chat-list::-webkit-scrollbar-thumb:hover {
    background: var(--color-border-default);
}

.sidebar-footer {
    border-top: 1px solid var(--color-border-default);
    padding-top: var(--space-2);
    margin-top: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sidebar-footer .btn-ghost {
    justify-content: flex-start;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-base);
    border-radius: var(--radius-md);
    color: var(--color-fg-default);
}

.sidebar-footer .btn-ghost svg {
    flex-shrink: 0;
}

.sidebar-footer .btn-ghost.danger-hover:hover {
    color: var(--color-danger-fg);
}

/* ===== Model toggle ===== */
.model-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3) var(--space-3);
    margin-bottom: var(--space-1);
    border-bottom: 1px solid var(--color-border-default);
}

.model-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-fg-muted);
    transition: color 0.15s;
    user-select: none;
}

.model-label[data-model="gpt-4.1"] {
    color: var(--color-fg-default);
}

.model-toggle.claude-active .model-label[data-model="gpt-4.1"] {
    color: var(--color-fg-muted);
}

.model-toggle.claude-active .model-label[data-model="claude-opus-4-6"] {
    color: var(--color-fg-default);
}

.toggle-switch {
    position: relative;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--color-border-default);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background 0.2s;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 14px;
    height: 14px;
    left: 3px;
    bottom: 3px;
    background: var(--color-canvas-default);
    border-radius: 50%;
    transition: transform 0.2s;
}

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

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(16px);
}

/* ===== Floating hamburger ===== */
#open-sidebar {
    position: fixed;
    top: var(--space-3);
    left: var(--space-3);
    z-index: 50;
    display: none;
    width: 36px;
    height: 36px;
    padding: 0;
}

.sidebar-hidden #open-sidebar,
#open-sidebar.visible {
    display: flex;
}

/* ===== Chat items ===== */
.chat-item {
    display: flex;
    align-items: center;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-base);
    margin-bottom: 1px;
    transition: background 0.1s;
}

.chat-item:hover {
    background: var(--color-canvas-inset);
}

.chat-item.active {
    background: var(--color-canvas-default);
    font-weight: 500;
}

.chat-item-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-item-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity 0.1s;
}

.chat-item:hover .chat-item-actions {
    opacity: 1;
}

.chat-item-actions .btn-icon {
    width: 24px;
    height: 24px;
    padding: 2px;
}

.chat-item-actions .btn-icon:hover {
    color: var(--color-fg-default);
}

.chat-item-actions .btn-icon.danger-hover:hover {
    color: var(--color-danger-fg);
}

/* ===== Main content ===== */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.messages {
    flex: 1;
    overflow-y: auto;
}

.messages-inner {
    max-width: 768px;
    margin: 0 auto;
    padding: var(--space-8);
}

/* ===== Messages ===== */
.message {
    padding: var(--space-3) 0;
}

.message-content {
    font-size: var(--font-size-chat);
    line-height: 1.6;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message-content.markdown {
    white-space: normal;
}

.message-content.markdown p {
    margin-bottom: var(--space-3);
}

.message-content.markdown p:last-child {
    margin-bottom: 0;
}

.message-content.markdown ul,
.message-content.markdown ol {
    padding-left: var(--space-6);
    margin-bottom: var(--space-3);
}

.message-content.markdown li {
    margin-bottom: var(--space-1);
}

.message-content.markdown > code,
.message-content.markdown p code,
.message-content.markdown li code {
    background: var(--color-canvas-subtle);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-family: var(--font-mono);
}

.message-content.markdown h1,
.message-content.markdown h2,
.message-content.markdown h3 {
    margin: var(--space-4) 0 var(--space-2);
}

/* User message bubble */
.message.user {
    user-select: none;
}
.message.user .message-content {
    user-select: text;
}
.message.user .message-content {
    background: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-muted);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-lg);
    max-width: 75%;
    width: fit-content;
    margin-left: auto;
    word-break: break-word;
}

/* ===== Code blocks ===== */
.code-block {
    position: relative;
    margin: var(--space-3) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--color-canvas-subtle);
    border: 1px solid var(--color-border-default);
}

.code-block pre {
    margin: 0;
    padding: var(--space-4);
    overflow-x: auto;
    background: transparent;
}

.code-block code {
    background: none;
    padding: 0 !important;
    font-size: var(--font-size-base);
    font-family: var(--font-mono);
    line-height: 1.5;
}

.copy-btn {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
    background: var(--color-canvas-default);
    border: 1px solid var(--color-border-default);
    color: var(--color-fg-muted);
    padding: var(--space-1);
    border-radius: var(--radius-md);
    cursor: pointer;
    opacity: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.1s;
}

.code-block:hover .copy-btn {
    opacity: 1;
}

.copy-btn:hover {
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

/* ===== Edit button / Edit mode ===== */
.edit-btn {
    opacity: 0;
    background: none;
    border: none;
    color: var(--color-fg-muted);
    cursor: pointer;
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    margin-left: auto;
    margin-top: var(--space-1);
    transition: opacity 0.1s;
    user-select: none;
}

.message.user:hover .edit-btn {
    opacity: 0.6;
}

.edit-btn:hover {
    opacity: 1 !important;
    background: var(--color-canvas-subtle);
    color: var(--color-fg-default);
}

.edit-wrapper {
    width: 100%;
    border: 1px solid var(--color-border-default);
    border-radius: var(--radius-lg);
    background: var(--color-canvas-default);
    overflow: hidden;
}

.edit-wrapper:focus-within {
    border-color: var(--color-accent-fg);
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
}

.edit-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: none;
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    line-height: 1.5;
    resize: vertical;
    outline: none;
    background: transparent;
    color: var(--color-fg-default);
}

.edit-actions {
    display: flex;
    gap: var(--space-2);
    justify-content: flex-end;
    padding: var(--space-2) var(--space-3);
}

.edit-save {
    padding: 5px var(--space-4);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    background: var(--color-btn-primary-bg);
    color: var(--color-fg-on-emphasis);
    font-weight: 500;
}

.edit-save:hover {
    background: var(--color-btn-primary-hover-bg);
}

.edit-cancel {
    padding: 5px var(--space-4);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-default);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-family: var(--font-family);
    background: var(--color-canvas-default);
    color: var(--color-fg-default);
}

.edit-cancel:hover {
    background: var(--color-canvas-subtle);
}

/* ===== Input area ===== */
.input-area {
    padding: var(--space-4) var(--space-6) var(--space-8);
    background: var(--color-canvas-default);
}

.input-container {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    align-items: flex-end;
    background: var(--color-canvas-subtle);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-default);
    transition: border-color 0.1s, box-shadow 0.1s;
}

.input-container:focus-within {
    border-color: var(--color-accent-fg);
    box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.3);
}

.input-box {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-chat);
    resize: none;
    outline: none;
    font-family: var(--font-family);
    max-height: 90vh;
    line-height: 1.5;
    color: var(--color-fg-default);
}

.input-box::placeholder {
    font-family: var(--font-family);
    font-size: var(--font-size-chat);
    color: var(--color-fg-muted);
}

.mic-btn,
.send-btn {
    background: var(--color-fg-default);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    margin: var(--space-2) 0 var(--space-2) var(--space-2);
    color: var(--color-fg-on-emphasis);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.1s;
}

.send-btn {
    margin-right: var(--space-2);
}

.mic-btn {
    background: transparent;
    color: var(--color-fg-muted);
    border: none;
}

.mic-btn:hover {
    color: var(--color-fg-default);
}

.rec-cancel-btn,
.rec-confirm-btn {
    background: transparent;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    margin: var(--space-2) 0 var(--space-2) var(--space-2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--color-fg-muted);
}

.rec-cancel-btn:hover,
.rec-confirm-btn:hover {
    color: var(--color-fg-default);
}

.rec-cancel-btn {
    margin-right: 0;
}

.rec-confirm-btn {
    margin-left: 0;
    margin-right: var(--space-2);
}

.input-container.recording .mic-btn,
.input-container.recording .send-btn {
    display: none;
}

.rec-indicator {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-md);
    font-family: var(--font-family);
    line-height: 1.5;
    color: var(--color-fg-muted);
}

.send-btn:disabled {
    background: var(--color-border-default);
    cursor: not-allowed;
}

.mic-btn:disabled {
    color: var(--color-border-default);
    cursor: not-allowed;
}

/* ===== Attach button ===== */
.attach-btn {
    background: transparent;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    margin: var(--space-2) 0 var(--space-2) var(--space-2);
    color: var(--color-fg-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: color 0.1s;
}

.attach-btn:hover {
    color: var(--color-fg-default);
}

.input-container.recording .attach-btn {
    display: none;
}

/* ===== Image preview strip ===== */
.image-preview-strip {
    display: none;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-2) var(--space-3);
    max-width: 700px;
    margin: 0 auto;
}

.image-preview-strip.active {
    display: flex;
}

.image-preview-item {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border-default);
}

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

.image-preview-item .remove-image {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    line-height: 1;
    padding: 0;
}

/* ===== Message images ===== */
.message-images {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    justify-content: flex-end;
}

.message-images img {
    max-width: 200px;
    max-height: 200px;
    border-radius: var(--radius-md);
    object-fit: cover;
    cursor: pointer;
}

/* ===== Centered layout (empty state) ===== */
.main.centered .messages {
    flex: none;
}

.main.centered {
    justify-content: center;
}

.empty-state {
    text-align: center;
    padding: var(--space-8) 0 var(--space-6);
    user-select: none;
}

.empty-state-logo {
    margin-bottom: var(--space-4);
}

.empty-state h1 {
    font-size: 36px;
    font-weight: 700;
    /*font-family: var(--font-mono);*/
    /*letter-spacing: -1px;*/
    color: var(--color-fg-default);
    margin-bottom: var(--space-2);
}

.empty-state p {
    font-size: var(--font-size-chat);
    color: var(--color-fg-muted);
}

/* ===== Loading animation ===== */
.loading-dots {
    display: flex;
    align-items: center;
    gap: 5px;
    min-height: 25.6px; /* match font-size-chat 16px * line-height 1.6 */
}

.loading-dots span {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    animation: fade-in 0.3s ease forwards;
}

.loading-dots span:nth-child(2) { animation-delay: 0.15s; }
.loading-dots span:nth-child(3) { animation-delay: 0.3s; }

.loading-dots span:nth-child(1) { width: 16px; height: 16px; }
.loading-dots span:nth-child(2) { width: 20px; height: 20px; }
.loading-dots span:nth-child(3) { width: 24px; height: 24px; }

.loading-dots span::before {
    content: '';
    border-radius: 50%;
    animation: dot-breathe 1.5s ease-in-out infinite;
}

.loading-dots span:nth-child(2)::before { animation-delay: 0.2s; }
.loading-dots span:nth-child(3)::before { animation-delay: 0.4s; }

.loading-dots span:nth-child(1)::before { width: 6px; height: 6px; background: rgba(0, 0, 0, 0.3); }
.loading-dots span:nth-child(2)::before { width: 8px; height: 8px; background: rgba(0, 0, 0, 0.6); }
.loading-dots span:nth-child(3)::before { width: 10px; height: 10px; background: rgba(0, 0, 0, 0.9); }

.loading-dots span::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    border: 2px solid var(--color-fg-default);
    opacity: 0;
    animation: ring-pulse 1s ease-out infinite;
}

.loading-dots span:nth-child(2)::after { animation-delay: 0.15s; }
.loading-dots span:nth-child(3)::after { animation-delay: 0.3s; }

@keyframes dot-breathe {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

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

@keyframes ring-pulse {
    0% { transform: scale(0.5); opacity: 0.8; }
    100% { transform: scale(1); opacity: 0; }
}

/* ===== Mobile ===== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        height: 100%;
        box-shadow: var(--shadow-overlay);
        transform: translateX(-100%);
    }

    .sidebar:not(.hidden) {
        transform: translateX(0);
    }

    .sidebar.hidden {
        box-shadow: none;
    }

    #open-sidebar {
        display: flex;
    }

    .message.user .message-content {
        max-width: 90%;
    }

    .empty-state h1 {
        font-size: 28px;
    }

    .modal-overlay {
        align-items: flex-start;
        padding-top: 80px;
    }

    /* Prevent iOS zoom on input focus */
    .form-input,
    select,
    textarea {
        font-size: 16px !important;
    }

    /* Sidebar backdrop overlay */
    .sidebar-backdrop {
        position: fixed;
        inset: 0;
        z-index: 99;
        display: none;
    }

    .sidebar-backdrop.active {
        display: block;
    }
}