:root {
    --font: Calibri, "Segoe UI", Arial, sans-serif;
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --surface-3: #eef3f9;
    --text: #172033;
    --muted: #6f7b91;
    --border: #dfe6ef;
    --primary: #5b55e7;
    --primary-dark: #4740ca;
    --primary-soft: #efefff;
    --success: #1e9b6c;
    --success-soft: #e9f8f1;
    --warning: #d78616;
    --warning-soft: #fff5df;
    --danger: #d84b5d;
    --danger-soft: #fff0f2;
    --info: #2c7be5;
    --info-soft: #edf5ff;
    --shadow-sm: 0 2px 8px rgba(24, 38, 65, .06);
    --shadow-md: 0 14px 36px rgba(24, 38, 65, .12);
    --shadow-lg: 0 28px 70px rgba(24, 38, 65, .18);
    --sidebar: 268px;
    --radius: 14px;
    --radius-sm: 10px;
}

html[data-theme="dark"] {
    --bg: #0f1522;
    --surface: #171f2d;
    --surface-2: #1d2737;
    --surface-3: #263246;
    --text: #edf2fa;
    --muted: #9ba9bd;
    --border: #2c394c;
    --primary: #7771ff;
    --primary-dark: #8d88ff;
    --primary-soft: #2a2857;
    --success-soft: #153b31;
    --warning-soft: #43331b;
    --danger-soft: #47242b;
    --info-soft: #1d3654;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, .16);
    --shadow-md: 0 14px 36px rgba(0, 0, 0, .3);
    --shadow-lg: 0 28px 70px rgba(0, 0, 0, .45);
}

* { box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
img { max-width: 100%; }
.icon { display: inline-block; flex: 0 0 auto; }

.app-shell { min-height: 100vh; }
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--sidebar);
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border-right: 1px solid var(--border);
    z-index: 100;
    box-shadow: 7px 0 24px rgba(31, 44, 73, .03);
}
.brand {
    height: 82px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 22px;
    border-bottom: 1px solid var(--border);
}
.brand-link { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand-mark {
    width: 42px;
    height: 42px;
    border-radius: 13px;
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 800;
    font-size: 23px;
    background: linear-gradient(145deg, #6f69f2, #4841c9);
    box-shadow: 0 9px 22px rgba(91, 85, 231, .3);
}
.brand-copy { display: flex; flex-direction: column; min-width: 0; }
.brand-copy strong { font-size: 21px; letter-spacing: -.3px; }
.brand-copy small { color: var(--muted); font-size: 12px; margin-top: -2px; }
.sidebar-close { display: none !important; margin-left: auto; }
.sidebar-primary-action { padding: 22px 20px 12px; }
.sidebar-nav { padding: 8px 12px; display: grid; gap: 4px; }
.nav-link {
    height: 47px;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 0 14px;
    color: var(--muted);
    border-radius: 11px;
    font-weight: 600;
    transition: .18s ease;
}
.nav-link:hover { background: var(--surface-2); color: var(--text); }
.nav-link.active { color: var(--primary); background: var(--primary-soft); }
.sidebar-spacer { flex: 1; }
.storage-card {
    margin: 10px 18px 16px;
    padding: 15px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 13px;
}
.storage-card-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; font-size: 13px; }
.storage-card-head span { display: flex; gap: 8px; align-items: center; font-weight: 700; }
.storage-card-head strong { color: var(--primary); }
.storage-progress { height: 7px; border-radius: 99px; background: var(--surface-3); margin: 12px 0 8px; overflow: hidden; }
.storage-progress span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--primary), #8f8aff); }
.storage-card p { margin: 0; font-size: 12px; color: var(--muted); }
.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 18px;
    border-top: 1px solid var(--border);
}
.avatar, .top-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: linear-gradient(145deg, #dcdafe, #bcb8ff);
    color: #3f39b3;
    font-weight: 800;
}
.sidebar-user-copy { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.sidebar-user-copy strong, .sidebar-user-copy small { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user-copy strong { font-size: 14px; }
.sidebar-user-copy small { color: var(--muted); font-size: 11px; }

.main-area { min-height: 100vh; margin-left: var(--sidebar); }
.topbar {
    height: 82px;
    display: flex;
    align-items: center;
    gap: 22px;
    padding: 0 30px;
    background: color-mix(in srgb, var(--surface) 94%, transparent);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar-title { min-width: 185px; }
.topbar-title h1 { margin: 0; font-size: 23px; line-height: 1.1; letter-spacing: -.25px; }
.topbar-title p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.global-search {
    max-width: 500px;
    flex: 1;
    height: 45px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 13px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    color: var(--muted);
    transition: .18s ease;
}
.global-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 14%, transparent); background: var(--surface); }
.global-search input { min-width: 0; flex: 1; border: 0; outline: 0; background: transparent; color: var(--text); }
.global-search input::placeholder { color: var(--muted); }
.global-search kbd { font-family: var(--font); font-size: 11px; padding: 2px 6px; border: 1px solid var(--border); border-radius: 5px; background: var(--surface); color: var(--muted); box-shadow: 0 1px 1px rgba(0,0,0,.04); }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.top-avatar { width: 36px; height: 36px; }
.menu-toggle { display: none !important; }
.mobile-search-toggle { display: none !important; }
.page-content { padding: 28px 30px 50px; max-width: 1720px; margin: 0 auto; }

.icon-btn {
    width: 38px;
    height: 38px;
    padding: 0;
    border: 0;
    border-radius: 10px;
    background: transparent;
    display: inline-grid;
    place-items: center;
    cursor: pointer;
    color: var(--muted);
    transition: .18s ease;
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.btn {
    min-height: 42px;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 9px 15px;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 9px;
    font-weight: 700;
    cursor: pointer;
    transition: .18s ease;
    white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: .55; pointer-events: none; transform: none; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 18px rgba(91, 85, 231, .22); }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); box-shadow: var(--shadow-sm); }
.btn-secondary:hover { border-color: color-mix(in srgb, var(--primary) 42%, var(--border)); }
.btn-ghost { background: transparent; color: var(--muted); }
.btn-ghost:hover { background: var(--surface-2); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger-soft { background: var(--danger-soft); color: var(--danger); }
.btn-sm { min-height: 35px; padding: 6px 10px; border-radius: 8px; font-size: 13px; }
.btn-block { width: 100%; }

.page-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 22px; }
.page-heading h2 { margin: 0; font-size: 26px; letter-spacing: -.4px; }
.page-heading p { margin: 5px 0 0; color: var(--muted); }
.page-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 17px; margin-bottom: 22px; }
.stat-card {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}
.stat-card::after { content: ''; position: absolute; width: 110px; height: 110px; right: -45px; top: -45px; border-radius: 50%; background: var(--primary-soft); opacity: .62; }
.stat-card-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; color: var(--muted); font-size: 13px; font-weight: 700; }
.stat-icon { width: 41px; height: 41px; display: grid; place-items: center; border-radius: 11px; background: var(--primary-soft); color: var(--primary); z-index: 1; }
.stat-card strong { display: block; font-size: 29px; margin-top: 12px; letter-spacing: -.6px; }
.stat-card p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }

.content-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(290px, .7fr); gap: 20px; }
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}
.panel-header { min-height: 64px; padding: 14px 18px; display: flex; align-items: center; justify-content: space-between; gap: 15px; border-bottom: 1px solid var(--border); }
.panel-title { display: flex; align-items: center; gap: 10px; }
.panel-title h3 { margin: 0; font-size: 17px; }
.panel-title p { margin: 2px 0 0; color: var(--muted); font-size: 12px; }
.panel-body { padding: 18px; }
.panel-empty { padding: 46px 20px; text-align: center; color: var(--muted); }
.panel-empty .empty-icon { margin: 0 auto 12px; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 15px; background: var(--surface-2); color: var(--primary); }
.panel-empty h3 { color: var(--text); margin: 0 0 6px; }
.panel-empty p { margin: 0 auto 18px; max-width: 420px; }

.toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    padding: 13px 15px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}
.breadcrumbs { display: flex; align-items: center; gap: 5px; min-width: 0; flex: 1; }
.breadcrumbs a, .breadcrumbs span { font-size: 14px; font-weight: 600; }
.breadcrumbs a { color: var(--muted); padding: 5px 7px; border-radius: 7px; }
.breadcrumbs a:hover { color: var(--primary); background: var(--primary-soft); }
.breadcrumbs .current { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 250px; }
.toolbar-group { display: flex; gap: 8px; align-items: center; }
.view-switch { display: inline-flex; border: 1px solid var(--border); border-radius: 9px; padding: 3px; background: var(--surface-2); }
.view-switch button { width: 31px; height: 29px; border: 0; border-radius: 6px; background: transparent; color: var(--muted); cursor: pointer; display: grid; place-items: center; }
.view-switch button.active { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); }

.file-list { width: 100%; border-collapse: collapse; }
.file-list th, .file-list td { padding: 12px 15px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.file-list th { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .45px; font-weight: 700; background: var(--surface-2); }
.file-list tr:last-child td { border-bottom: 0; }
.file-list tbody tr { transition: .15s ease; }
.file-list tbody tr:hover { background: var(--surface-2); }
.file-name-cell { display: flex; align-items: center; gap: 12px; min-width: 0; }
.file-name-copy { min-width: 0; }
.file-name-copy strong { display: block; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 520px; }
.file-name-copy small { display: none; color: var(--muted); margin-top: 2px; }
.file-row-actions { display: flex; justify-content: flex-end; gap: 3px; }
.file-type-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    flex: 0 0 auto;
    background: var(--surface-3);
    color: var(--muted);
}
.file-type-icon.folder { color: #e3a31f; background: #fff6da; }
.file-type-icon.image { color: #1e9b6c; background: #e9f8f1; }
.file-type-icon.pdf { color: #d84b5d; background: #fff0f2; }
.file-type-icon.word { color: #2c7be5; background: #edf5ff; }
.file-type-icon.sheet { color: #1e9b6c; background: #e9f8f1; }
.file-type-icon.slide { color: #e2752d; background: #fff1e8; }
.file-type-icon.archive { color: #8c55d6; background: #f3ecff; }
.file-type-icon.video { color: #d64b9f; background: #ffedf7; }
.file-type-icon.audio { color: #3a8ca7; background: #e9f7fb; }
.file-type-icon.code { color: #657082; background: #edf1f6; }
html[data-theme="dark"] .file-type-icon.folder { background: #493d1c; }
html[data-theme="dark"] .file-type-icon.image { background: #173c31; }
html[data-theme="dark"] .file-type-icon.pdf { background: #4b242d; }
html[data-theme="dark"] .file-type-icon.word { background: #1c3654; }
html[data-theme="dark"] .file-type-icon.sheet { background: #173c31; }
html[data-theme="dark"] .file-type-icon.slide { background: #4b321e; }
html[data-theme="dark"] .file-type-icon.archive { background: #382754; }
html[data-theme="dark"] .file-type-icon.video { background: #4b2540; }
html[data-theme="dark"] .file-type-icon.audio { background: #1d3b46; }
html[data-theme="dark"] .file-type-icon.code { background: #2d3542; }
.file-meta { color: var(--muted); font-size: 13px; white-space: nowrap; }
.file-checkbox { width: 17px; height: 17px; accent-color: var(--primary); }

.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 14px; padding: 16px; }
.file-card { border: 1px solid var(--border); border-radius: 12px; padding: 13px; background: var(--surface); transition: .18s ease; min-width: 0; position: relative; }
.file-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: color-mix(in srgb, var(--primary) 32%, var(--border)); }
.file-card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.file-card .file-type-icon { width: 50px; height: 50px; border-radius: 13px; }
.file-card-name { margin: 14px 0 3px; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-card-meta { color: var(--muted); font-size: 12px; }
.file-grid[hidden], .file-table-wrap[hidden] { display: none !important; }

.dropdown { position: relative; }
.dropdown-menu {
    position: fixed;
    z-index: 300;
    min-width: 190px;
    padding: 6px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 11px;
    box-shadow: var(--shadow-md);
    display: none;
}
.dropdown-menu.show { display: block; }
.dropdown-item { width: 100%; min-height: 38px; display: flex; align-items: center; gap: 10px; padding: 7px 10px; border: 0; border-radius: 7px; background: transparent; color: var(--text); cursor: pointer; text-align: left; }
.dropdown-item:hover { background: var(--surface-2); }
.dropdown-item.danger { color: var(--danger); }
.dropdown-separator { height: 1px; background: var(--border); margin: 5px 4px; }

.activity-list { display: grid; }
.activity-item { display: flex; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.activity-item:last-child { border-bottom: 0; }
.activity-icon { width: 37px; height: 37px; display: grid; place-items: center; border-radius: 10px; background: var(--primary-soft); color: var(--primary); flex: 0 0 auto; }
.activity-copy { min-width: 0; flex: 1; }
.activity-copy p { margin: 0; font-size: 14px; }
.activity-copy strong { font-weight: 700; }
.activity-copy small { display: block; color: var(--muted); margin-top: 4px; }

.quick-actions { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.quick-action { min-height: 105px; padding: 15px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); cursor: pointer; text-align: left; transition: .18s ease; }
.quick-action:hover { border-color: var(--primary); background: var(--primary-soft); transform: translateY(-2px); }
.quick-action span { width: 37px; height: 37px; display: grid; place-items: center; color: var(--primary); background: var(--surface); border-radius: 10px; margin-bottom: 11px; box-shadow: var(--shadow-sm); }
.quick-action strong { display: block; }
.quick-action small { color: var(--muted); }

.progress-ring-wrap { display: grid; place-items: center; padding: 10px 0 20px; }
.progress-ring { width: 150px; height: 150px; border-radius: 50%; display: grid; place-items: center; position: relative; background: conic-gradient(var(--primary) var(--progress), var(--surface-3) 0); }
.progress-ring::before { content: ''; position: absolute; inset: 13px; border-radius: 50%; background: var(--surface); }
.progress-ring-content { position: relative; text-align: center; }
.progress-ring-content strong { display: block; font-size: 28px; }
.progress-ring-content span { color: var(--muted); font-size: 12px; }
.storage-breakdown { display: grid; gap: 10px; }
.storage-line { display: grid; grid-template-columns: 12px 1fr auto; align-items: center; gap: 9px; font-size: 13px; }
.storage-line i { width: 10px; height: 10px; border-radius: 3px; background: var(--primary); }
.storage-line span { color: var(--muted); }

.badge { display: inline-flex; align-items: center; gap: 5px; min-height: 25px; padding: 3px 8px; border-radius: 99px; font-size: 12px; font-weight: 700; }
.badge-success { color: var(--success); background: var(--success-soft); }
.badge-warning { color: var(--warning); background: var(--warning-soft); }
.badge-danger { color: var(--danger); background: var(--danger-soft); }
.badge-info { color: var(--info); background: var(--info-soft); }
.badge-muted { color: var(--muted); background: var(--surface-3); }

.alert { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 11px; margin-bottom: 16px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); background: var(--surface); }
.alert-success { color: var(--success); background: var(--success-soft); border-color: color-mix(in srgb, var(--success) 25%, var(--border)); }
.alert-warning { color: var(--warning); background: var(--warning-soft); border-color: color-mix(in srgb, var(--warning) 25%, var(--border)); }
.alert-danger { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 25%, var(--border)); }
.alert-info { color: var(--info); background: var(--info-soft); border-color: color-mix(in srgb, var(--info) 25%, var(--border)); }
.alert span { flex: 1; }
.alert-close { border: 0; background: transparent; cursor: pointer; color: inherit; font-size: 20px; }

.modal { position: fixed; inset: 0; z-index: 500; display: none; align-items: center; justify-content: center; padding: 18px; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(14, 21, 34, .58); backdrop-filter: blur(4px); }
.modal-dialog { width: min(510px, 100%); max-height: calc(100vh - 36px); display: flex; flex-direction: column; position: relative; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow-lg); overflow: hidden; animation: modalIn .18s ease; }
.modal-lg { width: min(690px, 100%); }
.modal-xl { width: min(1040px, 100%); }
@keyframes modalIn { from { opacity: 0; transform: translateY(10px) scale(.985); } to { opacity: 1; transform: none; } }
.modal-header { padding: 18px 20px; display: flex; justify-content: space-between; gap: 15px; align-items: center; border-bottom: 1px solid var(--border); }
.modal-header h2 { margin: 0; font-size: 20px; }
.eyebrow { display: block; color: var(--primary); text-transform: uppercase; letter-spacing: .7px; font-weight: 800; font-size: 10px; margin-bottom: 2px; }
.modal-body { padding: 20px; overflow: auto; }
.modal-footer { padding: 14px 20px; display: flex; align-items: center; justify-content: flex-end; gap: 10px; border-top: 1px solid var(--border); }
.modal-footer small { color: var(--muted); margin-right: auto; }

.drop-zone { border: 2px dashed color-mix(in srgb, var(--primary) 45%, var(--border)); border-radius: 14px; padding: 34px 20px; text-align: center; background: var(--primary-soft); transition: .18s ease; }
.drop-zone.dragover { border-color: var(--primary); transform: scale(1.01); }
.drop-icon { width: 58px; height: 58px; display: grid; place-items: center; border-radius: 16px; margin: 0 auto 13px; background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); }
.drop-zone h3 { margin: 0; font-size: 18px; }
.drop-zone p { margin: 5px 0 16px; color: var(--muted); }
.upload-queue { margin-top: 16px; display: grid; gap: 10px; }
.upload-item { padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); }
.upload-item-head { display: flex; align-items: center; gap: 10px; }
.upload-item-head .file-type-icon { width: 35px; height: 35px; border-radius: 9px; }
.upload-item-copy { min-width: 0; flex: 1; }
.upload-item-copy strong { display: block; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.upload-item-copy small { color: var(--muted); font-size: 11px; }
.upload-progress { height: 5px; border-radius: 99px; background: var(--surface-3); overflow: hidden; margin-top: 9px; }
.upload-progress span { display: block; height: 100%; width: 0; background: var(--primary); border-radius: inherit; transition: width .15s linear; }
.upload-status { font-size: 12px; font-weight: 700; color: var(--primary); }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; }
.form-group { display: grid; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: 13px; font-weight: 700; }
.form-group .hint { color: var(--muted); font-size: 11px; }
.form-control, .form-select, textarea.form-control {
    width: 100%;
    min-height: 43px;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--surface);
    color: var(--text);
    outline: none;
    transition: .17s ease;
}
textarea.form-control { min-height: 100px; resize: vertical; }
.form-control:focus, .form-select:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 13%, transparent); }
.input-group { display: flex; }
.input-group .form-control { border-radius: 9px 0 0 9px; }
.input-group .btn { border-radius: 0 9px 9px 0; }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 13px 0; border-bottom: 1px solid var(--border); }
.switch-row:last-child { border-bottom: 0; }
.switch-copy strong { display: block; }
.switch-copy small { color: var(--muted); }
.switch { position: relative; width: 44px; height: 24px; flex: 0 0 auto; }
.switch input { opacity: 0; width: 0; height: 0; }
.switch span { position: absolute; inset: 0; background: var(--surface-3); border-radius: 99px; transition: .2s; cursor: pointer; }
.switch span::after { content: ''; position: absolute; width: 18px; height: 18px; left: 3px; top: 3px; background: #fff; border-radius: 50%; box-shadow: 0 1px 4px rgba(0,0,0,.18); transition: .2s; }
.switch input:checked + span { background: var(--primary); }
.switch input:checked + span::after { transform: translateX(20px); }

.settings-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 20px; }
.settings-nav { padding: 8px; height: fit-content; }
.settings-nav a { display: flex; align-items: center; gap: 10px; padding: 11px 12px; border-radius: 9px; color: var(--muted); font-weight: 700; }
.settings-nav a:hover, .settings-nav a.active { color: var(--primary); background: var(--primary-soft); }
.settings-section { padding: 22px; }
.settings-section h3 { margin: 0 0 4px; }
.settings-section > p { margin: 0 0 22px; color: var(--muted); }
.divider { height: 1px; background: var(--border); margin: 22px 0; }

.preview-box { min-height: 340px; max-height: 72vh; display: grid; place-items: center; background: var(--surface-2); border-radius: 11px; overflow: auto; }
.preview-box img { max-height: 70vh; object-fit: contain; }
.preview-box iframe { width: 100%; height: 68vh; border: 0; background: #fff; }
.preview-box video, .preview-box audio { max-width: 100%; }
.preview-text { width: 100%; min-height: 300px; margin: 0; padding: 18px; white-space: pre-wrap; font-family: Consolas, monospace; font-size: 13px; color: var(--text); }

.toast-stack { position: fixed; right: 18px; bottom: 18px; z-index: 900; display: grid; gap: 9px; width: min(370px, calc(100vw - 36px)); }
.toast { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 11px; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-md); animation: toastIn .2s ease; }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--info); }
.toast span { flex: 1; }
@keyframes toastIn { from { opacity: 0; transform: translateX(15px); } to { opacity: 1; transform: none; } }

.pagination { display: flex; gap: 6px; justify-content: flex-end; align-items: center; padding: 15px; border-top: 1px solid var(--border); }
.pagination a, .pagination span { min-width: 35px; height: 35px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--border); color: var(--muted); }
.pagination a:hover, .pagination .active { background: var(--primary); border-color: var(--primary); color: #fff; }

.public-page { min-height: 100vh; display: grid; place-items: center; padding: 28px; background: radial-gradient(circle at 10% 10%, #efefff, transparent 34%), radial-gradient(circle at 90% 90%, #eaf6ff, transparent 30%), var(--bg); }
.public-card { width: min(610px, 100%); background: var(--surface); border: 1px solid var(--border); border-radius: 18px; box-shadow: var(--shadow-lg); overflow: hidden; }
.public-brand { display: flex; align-items: center; gap: 12px; padding: 20px 22px; border-bottom: 1px solid var(--border); }
.public-body { padding: 30px; text-align: center; }
.public-file-icon { width: 76px; height: 76px; margin: 0 auto 18px; display: grid; place-items: center; border-radius: 20px; background: var(--primary-soft); color: var(--primary); }
.public-body h1 { margin: 0; font-size: 24px; word-break: break-word; }
.public-body p { color: var(--muted); }
.public-meta { display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; margin: 20px 0; }
.public-meta span { color: var(--muted); font-size: 13px; }
.public-footer { padding: 14px 20px; text-align: center; border-top: 1px solid var(--border); color: var(--muted); font-size: 12px; }

.login-page { min-height: 100vh; display: grid; grid-template-columns: minmax(430px, 1fr) minmax(480px, 1.15fr); background: var(--surface); }
.login-pane { display: flex; align-items: center; justify-content: center; padding: 50px; }
.login-box { width: min(430px, 100%); }
.login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 42px; }
.login-box h1 { font-size: 34px; margin: 0 0 8px; letter-spacing: -.7px; }
.login-box > p { color: var(--muted); margin: 0 0 28px; }
.login-form { display: grid; gap: 17px; }
.login-extra { display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 13px; }
.login-visual { position: relative; overflow: hidden; background: linear-gradient(145deg, #3e38bb 0%, #5c55e7 48%, #7a74f4 100%); padding: 58px; color: #fff; display: flex; align-items: flex-end; }
.login-visual::before, .login-visual::after { content: ''; position: absolute; border-radius: 50%; border: 1px solid rgba(255,255,255,.17); }
.login-visual::before { width: 540px; height: 540px; top: -190px; right: -160px; }
.login-visual::after { width: 390px; height: 390px; top: -110px; right: -80px; }
.visual-copy { position: relative; z-index: 2; max-width: 620px; }
.visual-copy .shield-icon { width: 60px; height: 60px; display: grid; place-items: center; border-radius: 17px; background: rgba(255,255,255,.16); backdrop-filter: blur(8px); margin-bottom: 24px; }
.visual-copy h2 { font-size: clamp(34px, 4vw, 54px); margin: 0 0 14px; line-height: 1.08; letter-spacing: -1px; }
.visual-copy p { margin: 0; color: rgba(255,255,255,.82); font-size: 18px; max-width: 530px; }
.feature-chips { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 9px; }
.feature-chip { padding: 8px 12px; border-radius: 99px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.18); font-size: 13px; }

.install-page { min-height: 100vh; padding: 35px 20px; background: var(--bg); }
.install-wrap { width: min(960px, 100%); margin: 0 auto; }
.install-head { text-align: center; margin-bottom: 25px; }
.install-head .brand-mark { margin: 0 auto 13px; }
.install-head h1 { margin: 0; font-size: 31px; }
.install-head p { color: var(--muted); }
.install-card { background: var(--surface); border: 1px solid var(--border); border-radius: 17px; box-shadow: var(--shadow-md); overflow: hidden; }
.install-card-head { padding: 20px 24px; border-bottom: 1px solid var(--border); }
.install-card-head h2 { margin: 0; font-size: 20px; }
.install-card-body { padding: 24px; }
.requirements { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 22px; }
.requirement { padding: 12px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); display: flex; gap: 10px; align-items: center; }
.requirement.ok { color: var(--success); }
.requirement.bad { color: var(--danger); }

.table-responsive { width: 100%; overflow-x: auto; }
.text-muted { color: var(--muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.hidden { display: none !important; }
.sidebar-overlay { display: none; }

@media (max-width: 1180px) {
    .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .content-grid { grid-template-columns: 1fr; }
    .global-search { max-width: none; }
    .file-name-copy strong { max-width: 330px; }
}

@media (max-width: 900px) {
    :root { --sidebar: 278px; }
    .sidebar { transform: translateX(-100%); transition: transform .22s ease; box-shadow: var(--shadow-lg); }
    body.sidebar-open .sidebar { transform: translateX(0); }
    .sidebar-close { display: inline-grid !important; }
    .sidebar-overlay { position: fixed; inset: 0; z-index: 90; background: rgba(12,18,28,.48); backdrop-filter: blur(2px); }
    body.sidebar-open .sidebar-overlay { display: block; }
    .main-area { margin-left: 0; }
    .menu-toggle { display: inline-grid !important; }
    .topbar { padding: 0 18px; }
    .topbar-title { min-width: 0; }
    .topbar-title p { display: none; }
    .top-avatar { display: none; }
    .page-content { padding: 22px 18px 40px; }
    .settings-grid { grid-template-columns: 1fr; }
    .settings-nav { display: flex; overflow-x: auto; }
    .settings-nav a { white-space: nowrap; }
    .login-page { grid-template-columns: 1fr; }
    .login-visual { display: none; }
}

@media (max-width: 680px) {
    .topbar { height: 70px; gap: 10px; }
    .topbar-title h1 { font-size: 19px; }
    .global-search { position: fixed; top: 78px; left: 14px; right: 14px; max-width: none; z-index: 80; box-shadow: var(--shadow-md); display: none; }
    .global-search.mobile-open { display: flex; }
    .topbar-actions { margin-left: auto; }
    .mobile-search-toggle { display: inline-grid !important; }
    .page-content { padding: 18px 13px 35px; }
    .page-heading { align-items: stretch; flex-direction: column; }
    .page-heading h2 { font-size: 23px; }
    .page-actions .btn { flex: 1; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat-card { padding: 15px; }
    .stat-card strong { font-size: 24px; }
    .stat-icon { width: 36px; height: 36px; }
    .toolbar { align-items: stretch; }
    .breadcrumbs { width: 100%; order: 1; }
    .toolbar-group { order: 2; width: 100%; justify-content: space-between; }
    .file-list th:nth-child(3), .file-list td:nth-child(3), .file-list th:nth-child(4), .file-list td:nth-child(4) { display: none; }
    .file-list th, .file-list td { padding: 11px 9px; }
    .file-list th:first-child, .file-list td:first-child { width: 34px; }
    .file-name-copy strong { max-width: 180px; }
    .file-name-copy small { display: block; }
    .file-row-actions .icon-btn:not(:last-child) { display: none; }
    .file-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; padding: 10px; }
    .form-grid { grid-template-columns: 1fr; }
    .modal { padding: 0; align-items: flex-end; }
    .modal-dialog, .modal-lg, .modal-xl { width: 100%; max-height: 92vh; border-radius: 17px 17px 0 0; }
    .modal-footer { flex-wrap: wrap; }
    .modal-footer small { width: 100%; margin: 0 0 4px; }
    .quick-actions { grid-template-columns: 1fr 1fr; }
    .login-pane { padding: 28px 22px; }
    .login-brand { margin-bottom: 32px; }
    .login-box h1 { font-size: 29px; }
    .requirements { grid-template-columns: 1fr; }
    .install-card-body { padding: 18px; }
}

@media (max-width: 430px) {
    .stats-grid { grid-template-columns: 1fr; }
    .file-grid { grid-template-columns: 1fr 1fr; }
    .file-card { padding: 10px; }
    .file-card .file-type-icon { width: 42px; height: 42px; }
    .quick-actions { grid-template-columns: 1fr; }
}