/* ===== CSS Variables ===== */
:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #f8fafc;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --text-1: #1a1a2e;
    --text-2: #475569;
    --text-3: #94a3b8;
    --accent: #1e88e5;
    --accent-dark: #1565c0;
    --accent-soft: #e3f2fd;
    --accent-hover: #1976d2;
    --success: #16a34a;
    --success-soft: #f0fdf4;
    --warning: #f59e0b;
    --warning-soft: #fffbeb;
    --danger: #ef4444;
    --danger-soft: #fef2f2;
    --radius: 10px;
    --radius-lg: 18px;
    --radius-sm: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,.06);
    --shadow-md: 0 4px 14px rgba(0,0,0,.08);
    --shadow-lg: 0 16px 40px rgba(0,0,0,.1);
    --t: all .25s cubic-bezier(.4,0,.2,1);
}

/* ===== Reset & Base ===== */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text-2);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(0,0,0,.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,.015) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
}
a { color: var(--accent); text-decoration: none; transition: var(--t); }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; display: block; }
button, input, select, textarea { font: inherit; }

/* ===== Navigation ===== */
#navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    height: 64px;
    padding: 0;
    margin: 0;
    background: rgba(244,247,251,.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: var(--t);
    display: flex;
    align-items: center;
}
#navbar.scrolled,
.navbar.scrolled {
    background: rgba(255,255,255,.92);
    box-shadow: var(--shadow);
}
.big-nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
#navbar .navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0;
    margin: 0;
}
#navbar .navbar-brand img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
}
.navbar-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.navbar-brand-text strong {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-1);
    letter-spacing: -.2px;
}
.navbar-brand-text small {
    font-size: 10px;
    color: var(--text-3);
    font-weight: 500;
    letter-spacing: .5px;
    text-transform: uppercase;
}
.navbar-toggler {
    display: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    background: var(--surface);
    cursor: pointer;
}
.navbar-toggler-icon {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-2);
    position: relative;
}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--text-2);
}
.navbar-toggler-icon::before { top: -6px; }
.navbar-toggler-icon::after { top: 6px; }
.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-menu a {
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text-2);
    transition: var(--t);
}
.nav-menu a:hover {
    background: #f0f0f0;
    color: var(--text-1);
}
.nav-menu a.active {
    color: var(--accent);
    background: var(--accent-soft);
}
.nav-search {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 8px;
}
.nav-search input {
    width: 200px;
    height: 36px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: 0;
    background: var(--surface);
    color: var(--text-1);
    font-size: 13px;
    transition: var(--t);
}
.nav-search input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(30,136,229,.1);
}
.nav-search input::placeholder { color: var(--text-3); }
.nav-search button {
    height: 36px;
    padding: 0 14px;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--t);
    display: flex;
    align-items: center;
    gap: 6px;
}
.nav-search button:hover {
    background: var(--accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(30,136,229,.2);
}

/* ===== Main Content ===== */
#main {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 28px 24px 60px;
}

/* ===== Announcement Bar ===== */
#msg {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    border: 1px solid var(--accent-soft);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius);
    color: var(--text-2);
    background: var(--accent-soft);
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 20px;
}
#msg i {
    color: var(--accent);
    font-size: 15px;
    flex-shrink: 0;
}

/* ===== Breadcrumb ===== */
.breadcrumb-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 13px;
}
.breadcrumb-bar a {
    color: var(--text-3);
    font-weight: 500;
    transition: var(--t);
}
.breadcrumb-bar a:hover { color: var(--accent); }
.breadcrumb-bar .sep {
    color: var(--text-3);
    font-size: 11px;
}
.breadcrumb-bar .current {
    color: var(--text-1);
    font-weight: 600;
}

/* ===== Search Result Header ===== */
.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}
.result-header h3 {
    margin: 0;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-1);
}
.result-header small {
    color: var(--text-3);
    font-size: 12px;
}

/* ===== Admin Toolbar ===== */
.admin-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.tb-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 34px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-2);
    font-size: 12.5px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--t);
}
.tb-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(30,136,229,.1);
}
.tb-btn i { font-size: 13px; }
.tb-btn.tb-success { border-color: var(--success); color: var(--success); }
.tb-btn.tb-success:hover { background: var(--success-soft); border-color: var(--success); }
.tb-btn.tb-danger { border-color: var(--danger); color: var(--danger); }
.tb-btn.tb-danger:hover { background: var(--danger-soft); border-color: var(--danger); }

/* ===== File Table ===== */
.dirlist-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.dirlist {
    width: 100%;
    border: 0;
    margin: 0;
    border-collapse: collapse;
}
.dirlist thead th {
    padding: 14px 16px;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border);
    color: var(--text-3);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .8px;
    white-space: nowrap;
}
.dirlist tbody td {
    padding: 12px 16px;
    border-bottom: 1px solid #f1f5f9;
    font-size: 13px;
    vertical-align: middle;
    transition: background .15s ease;
}
.dirlist tbody tr:last-child td { border-bottom: none; }
.dirlist tbody tr:hover td { background: rgba(30,136,229,.03); }
.dirlist tbody tr.parent-row td {
    background: var(--surface-soft);
}
.dirlist tbody tr.parent-row:hover td {
    background: var(--accent-soft);
}

/* ===== Filename ===== */
.fname {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    max-width: 520px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-1);
    font-weight: 500;
    font-size: 13.5px;
    transition: var(--t);
}
.fname:hover { color: var(--accent); }
.fname .fa { font-size: 16px; }
.fname .fa-folder-open { color: var(--accent); }
.fname .fa-level-up { color: var(--warning); }
.fname .fa-file-image-o { color: #ec4899; }
.fname .fa-file-audio-o { color: #16a34a; }
.fname .fa-file-video-o { color: #8b5cf6; }
.fname .fa-file-code-o { color: #f97316; }
.fname .fa-file-archive-o { color: #6366f1; }
.fname .fa-file-text-o { color: var(--text-3); }
.fname .fa-file-pdf-o { color: #ef4444; }
.fname .fa-file-word-o { color: #3b82f6; }
.fname .fa-file-excel-o { color: #16a34a; }
.fname .fa-file-powerpoint-o { color: #f97316; }

/* ===== File Info Column ===== */
.fileinfo {
    text-align: right;
    white-space: nowrap;
}
.fileinfo a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    color: var(--text-3);
    transition: var(--t);
}
.fileinfo a:hover {
    background: var(--accent-soft);
    color: var(--accent);
}

/* ===== File Size & Time ===== */
.file-size {
    color: var(--text-2);
    font-size: 12.5px;
    font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
}
.file-time {
    color: var(--text-3);
    font-size: 12.5px;
    white-space: nowrap;
}

/* ===== Action Buttons ===== */
.act-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-3);
    background: var(--surface);
    cursor: pointer;
    transition: var(--t);
    font-size: 13px;
}
.act-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(30,136,229,.1);
}
.act-btn.act-primary {
    border-color: var(--accent);
    color: var(--accent);
}
.act-btn.act-primary:hover {
    background: var(--accent);
    color: #fff;
}
/* ===== Checkbox ===== */
.custom-checkbox .custom-control-input:checked ~ .custom-control-label::before {
    background-color: var(--accent);
    border-color: var(--accent);
}

/* ===== Password Gate ===== */
.passwd-card {
    max-width: 440px;
    margin: 40px auto;
    padding: 32px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}
.passwd-card h4 {
    margin: 0 0 8px;
    color: var(--text-1);
    font-size: 16px;
    font-weight: 600;
}
.passwd-card p {
    margin: 0 0 24px;
    color: var(--text-3);
    font-size: 13px;
}
.passwd-card .input-group {
    display: flex;
    gap: 8px;
}
.passwd-card input[type="text"],
.passwd-card input[type="password"] {
    flex: 1;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: 0;
    font-size: 13px;
    color: var(--text-1);
    background: var(--surface);
    transition: var(--t);
}
.passwd-card input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(30,136,229,.1);
}
.passwd-card .back-link {
    display: block;
    margin-top: 16px;
    color: var(--text-3);
    font-size: 12.5px;
}
.passwd-card .back-link:hover { color: var(--accent); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    height: 38px;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--t);
    text-decoration: none;
    line-height: 1;
}
.btn-primary {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-dark);
    border-color: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30,136,229,.2);
}
.btn-outline-primary {
    background: transparent;
    color: var(--accent);
    border-color: var(--border);
}
.btn-outline-primary:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
    color: var(--accent);
}
.btn-outline-secondary {
    background: transparent;
    color: var(--text-2);
    border-color: var(--border);
}
.btn-outline-secondary:hover {
    border-color: var(--text-2);
    color: var(--text-1);
}
.btn-outline-success {
    background: transparent;
    color: var(--success);
    border-color: var(--success);
}
.btn-outline-success:hover {
    background: var(--success-soft);
}
.btn-outline-info {
    background: transparent;
    color: var(--accent);
    border-color: var(--border);
}
.btn-outline-info:hover {
    border-color: var(--accent);
    background: var(--accent-soft);
}
.btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}
.btn-outline-danger:hover {
    background: var(--danger-soft);
}
.btn-sm {
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
    border-radius: 6px;
}
.btn-block {
    width: 100%;
}

/* ===== Form Controls ===== */
.form-control {
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    outline: 0;
    color: var(--text-1);
    background: var(--surface);
    font-size: 13px;
    transition: var(--t);
}
.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(30,136,229,.1);
}
textarea.form-control {
    height: auto;
    padding: 10px 14px;
    resize: vertical;
}
select.form-control {
    cursor: pointer;
    appearance: auto;
}
.input-group {
    display: flex;
    align-items: stretch;
}
.input-group .form-control {
    flex: 1;
    min-width: 0;
}
.input-group-append {
    display: flex;
    align-items: stretch;
}
.input-group-text {
    display: flex;
    align-items: center;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-left: 0;
    border-radius: 0 8px 8px 0;
    background: var(--surface-soft);
    color: var(--text-3);
    font-size: 13px;
}
.form-group {
    margin-bottom: 18px;
}
.form-group label,
.col-form-label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-2);
    font-size: 13px;
    font-weight: 500;
}
@media (min-width: 576px) {
    .col-form-label {
        text-align: right;
        padding-top: 10px;
        margin-bottom: 0;
    }
}

/* ===== Cards ===== */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.card-header {
    padding: 14px 20px;
    background: var(--surface-soft);
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-1);
}
.card-body {
    padding: 24px;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    margin-top: 24px;
}
.pagination .page-item .page-link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    height: 36px;
    padding: 0 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-2);
    background: var(--surface);
    font-size: 13px;
    font-weight: 500;
    transition: var(--t);
    text-decoration: none;
}
.pagination .page-item .page-link:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft);
}
.pagination .page-item.active .page-link {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}
.pagination .page-item.disabled .page-link {
    color: var(--text-3);
    background: var(--surface-soft);
    border-color: var(--border);
    cursor: not-allowed;
    opacity: .6;
}

/* ===== Tabs ===== */
.nav-tabs {
    border-bottom: 1px solid var(--border);
}
.nav-tabs .nav-link {
    padding: 10px 18px;
    border: 0;
    border-bottom: 2px solid transparent;
    color: var(--text-3);
    font-size: 13px;
    font-weight: 500;
    transition: var(--t);
    cursor: pointer;
}
.nav-tabs .nav-link:hover {
    color: var(--accent);
    border-bottom-color: rgba(30,136,229,.3);
}
.nav-tabs .nav-link.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
    background: transparent;
}

/* ===== Modal / Layer Overrides ===== */
.layui-layer {
    border-radius: var(--radius-lg) !important;
    overflow: hidden;
}
.layui-layer-title {
    background: var(--surface-soft) !important;
    border-bottom: 1px solid var(--border) !important;
    color: var(--text-1) !important;
    font-size: 14px !important;
    font-weight: 600 !important;
}

/* ===== Error / Warning Card ===== */
.border-warning {
    border-color: var(--warning) !important;
}
.bg-warning {
    background: var(--warning-soft) !important;
    color: var(--text-1) !important;
}
.border-success {
    border-color: var(--success) !important;
}

/* ===== README Card ===== */
.readme-card {
    margin-top: 24px;
    border-radius: var(--radius-lg);
    overflow: hidden;
}
.readme-card .card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-1);
}
.readme-card .card-header i {
    color: var(--accent);
}
.readme-card .card-body {
    padding: 24px;
}

/* ===== Audio Player ===== */
#aplayer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 99;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: 24px 0;
    color: var(--text-3);
    font-size: 12.5px;
    border-top: 1px solid var(--border);
    background: transparent;
    position: relative;
}
.footer a {
    color: var(--text-2);
    font-weight: 500;
}
.footer a:hover { color: var(--accent); }

/* ===== Markdown Body Override ===== */
.markdown-body {
    font-size: 14px;
    line-height: 1.7;
}
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
    color: var(--text-1);
    border-bottom-color: var(--border);
}
.markdown-body code {
    background: var(--accent-soft);
    color: var(--accent);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 13px;
}
.markdown-body pre {
    background: #f6f8fa;
    border: 1px solid var(--border);
    border-radius: 8px;
}
.markdown-body blockquote {
    border-left: 3px solid var(--accent);
    color: var(--text-2);
}
.markdown-body a {
    color: var(--accent);
}
.markdown-body table th {
    background: var(--surface-soft);
    border-color: var(--border);
}
.markdown-body table td {
    border-color: var(--border);
}
.markdown-body hr {
    border-color: var(--border);
}

/* ===== Mobile Search ===== */
.mobile-search {
    display: none;
    margin-bottom: 16px;
}
.mobile-search .input-group {
    display: flex;
}
.mobile-search input {
    flex: 1;
    height: 42px;
    padding: 0 14px;
    border: 1px solid var(--border);
    border-radius: 8px 0 0 8px;
    outline: 0;
    font-size: 13px;
    color: var(--text-1);
}
.mobile-search input:focus {
    border-color: var(--accent);
}
.mobile-search button {
    height: 42px;
    padding: 0 16px;
    border: 0;
    border-radius: 0 8px 8px 0;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    cursor: pointer;
}

/* ===== Utility ===== */
.center-block {
    margin: 0 auto;
    float: none;
    padding: 0;
}
.text-center { text-align: center; }
.text-muted { color: var(--text-3) !important; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mb-3 { margin-bottom: 1rem; }
.ellipsis {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
textarea { word-break: break-all; }

/* ===== Mobile Responsive ===== */
@media screen and (max-width: 992px) {
    .fname { max-width: 380px; }
    .nav-search input { width: 160px; }
}
@media screen and (max-width: 768px) {
    #main { padding: 16px 14px 40px; }
    .fname { max-width: none; white-space: normal; }
    .mobile-search { display: block; }
    .nav-search { display: none; }
    .big-nav { padding: 0 14px; }
    .admin-toolbar { gap: 6px; padding: 10px 12px; }
    .tb-btn { height: 30px; padding: 0 10px; font-size: 11.5px; }
    .dirlist thead { display: none; }
    .dirlist tbody tr {
        display: flex;
        flex-wrap: wrap;
        padding: 12px 16px;
        border-bottom: 1px solid #f1f5f9;
        gap: 8px;
        align-items: center;
    }
    .dirlist tbody td {
        border: 0;
        padding: 0;
    }
    .dirlist tbody td.fileinfo { display: none !important; }
    .dirlist tbody td.file-time { display: none !important; }
    .dirlist tbody td:first-child { flex-shrink: 0; width: 36px; }
    .dirlist tbody td:nth-child(2) { flex: 1; min-width: 0; }
    .dirlist tbody td:last-child {
        margin-left: auto;
    }
    .dirlist .custom-checkbox { padding-left: 0 !important; margin: 0; }
    .dirlist .custom-checkbox .custom-control-label { display: flex; align-items: center; justify-content: center; }
    .dirlist .custom-checkbox .custom-control-label::before { top: 0; left: 0; width: 20px; height: 20px; border-radius: 4px; border: 2px solid #ccc; background: #fff; }
    .dirlist .custom-checkbox .custom-control-label::after { top: 0; left: 0; width: 20px; height: 20px; }
    .dirlist .custom-checkbox .custom-control-input:checked ~ .custom-control-label::before { background-color: var(--accent); border-color: var(--accent); }
    .act-btn { width: 28px; height: 28px; font-size: 12px; }
    .pagination .page-item .page-link {
        min-width: 32px;
        height: 32px;
        font-size: 12px;
    }
}
@media screen and (max-width: 576px) {
    .navbar-toggler { display: block; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-md);
        padding: 12px;
        flex-direction: column;
        align-items: stretch;
    }
    .nav-menu.show { display: flex; }
    .nav-menu a { padding: 10px 14px; }
    .nav-search { display: none; }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d4d4d4; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #a3a3a3; }

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn .4s ease both; }