/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --blue-500: #3b82f6;
    --blue-400: #60a5fa;
    --blue-50: #eff6ff;
    --green-500: #22c55e;
    --green-400: #4ade80;
    --green-50: #f0fdf4;
    --purple-500: #a855f7;
    --purple-50: #faf5ff;
    --orange-500: #f97316;
    --orange-50: #fff7ed;
    --red-500: #ef4444;
    --red-50: #fef2f2;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --sidebar-w: 260px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-700);
    line-height: 1.6;
    background: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    display: flex;
    min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* === Sidebar === */
.sidebar {
    width: var(--sidebar-w);
    background: var(--gray-950);
    color: var(--gray-400);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 50;
    border-right: 1px solid rgba(255,255,255,.06);
}

.sidebar-header {
    padding: 20px 20px 16px;
    border-bottom: 1px solid rgba(255,255,255,.06);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: #fff;
}

.logo-icon { width: 30px; height: 30px; }

.sidebar-nav {
    padding: 12px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: .875rem;
    font-weight: 500;
    color: var(--gray-400);
    transition: all .15s;
}

.nav-item:hover {
    background: rgba(255,255,255,.06);
    color: var(--gray-200);
}

.nav-item.active {
    background: rgba(37, 99, 235, .15);
    color: var(--blue-400);
}

.nav-item.active svg { stroke: var(--blue-400); }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,.06);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar-storage-info {
    display: flex;
    justify-content: space-between;
    font-size: .75rem;
    margin-bottom: 6px;
    color: var(--gray-500);
}

.sidebar-storage-bar {
    height: 4px;
    background: rgba(255,255,255,.08);
    border-radius: 2px;
    overflow: hidden;
}

.sidebar-storage-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-600), var(--blue-400));
    border-radius: 2px;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-600), #7c3aed);
    color: #fff;
    font-size: .75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.user-avatar.sm { width: 32px; height: 32px; font-size: .7rem; }

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name {
    display: block;
    font-size: .82rem;
    font-weight: 600;
    color: var(--gray-200);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-plan {
    font-size: .72rem;
    color: var(--gray-500);
}

.user-menu-btn {
    background: none;
    border: none;
    color: var(--gray-500);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background .15s;
}

.user-menu-btn:hover { background: rgba(255,255,255,.08); }

/* === Mobile Header === */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 40;
    height: 56px;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    padding: 0 16px;
    align-items: center;
    gap: 12px;
}

.mobile-header .logo span { color: var(--gray-900); }

.mobile-sidebar-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-600);
    padding: 4px;
}

.mobile-header .user-avatar { margin-left: auto; }

/* === Main Content === */
.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    padding: 32px;
    max-width: 1200px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 28px;
    gap: 16px;
    flex-wrap: wrap;
}

.page-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    letter-spacing: -.01em;
}

.page-subtitle {
    font-size: .9rem;
    color: var(--gray-500);
    margin-top: 2px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .82rem;
    font-weight: 500;
    color: var(--gray-500);
    background: #fff;
    padding: 8px 14px;
    border-radius: 100px;
    border: 1px solid var(--gray-200);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.status-indicator.online {
    background: var(--green-500);
    box-shadow: 0 0 6px rgba(34,197,94,.4);
}

/* === Pages === */
.page { display: none; }
.page.active { display: block; }

/* === Cards === */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.cards-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.dash-card {
    background: #fff;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 24px;
    margin-bottom: 24px;
}

.status-card {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 0;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon.green { background: var(--green-50); color: var(--green-500); }
.card-icon.blue { background: var(--blue-50); color: var(--blue-600); }
.card-icon.purple { background: var(--purple-50); color: var(--purple-500); }
.card-icon.orange { background: var(--orange-50); color: var(--orange-500); }

.card-label {
    display: block;
    font-size: .78rem;
    color: var(--gray-500);
    font-weight: 500;
    margin-bottom: 2px;
}

.card-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.card-value small {
    font-weight: 400;
    color: var(--gray-400);
    font-size: .85rem;
}

.card-value.green-text { color: var(--green-500); }

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
}

.card-badge {
    font-size: .75rem;
    font-weight: 500;
    color: var(--gray-500);
    background: var(--gray-50);
    padding: 4px 10px;
    border-radius: 100px;
    border: 1px solid var(--gray-200);
}

.card-link {
    font-size: .82rem;
    font-weight: 600;
    color: var(--blue-600);
    transition: opacity .15s;
}

.card-link:hover { opacity: .7; }

.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.two-col .dash-card { margin-bottom: 0; }

/* === Bar Chart === */
.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.bar-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bar-label {
    font-size: .78rem;
    color: var(--gray-500);
    width: 44px;
    flex-shrink: 0;
    font-weight: 500;
}

.bar-track {
    flex: 1;
    height: 10px;
    background: var(--gray-100);
    border-radius: 5px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--blue-600), var(--blue-400));
    border-radius: 5px;
    transition: width .6s ease;
}

.bar-val {
    font-size: .78rem;
    font-weight: 600;
    color: var(--gray-700);
    width: 60px;
    text-align: right;
    flex-shrink: 0;
}

/* === Activity List === */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.success { background: var(--green-50); color: var(--green-500); }
.activity-icon.warning { background: var(--orange-50); color: var(--orange-500); }
.activity-icon.error { background: var(--red-50); color: var(--red-500); }

.activity-content { flex: 1; min-width: 0; }

.activity-title {
    display: block;
    font-size: .85rem;
    font-weight: 500;
    color: var(--gray-800);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.activity-time {
    font-size: .75rem;
    color: var(--gray-400);
}

.activity-size {
    font-size: .78rem;
    font-weight: 600;
    color: var(--gray-500);
    flex-shrink: 0;
}

/* === Table === */
.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}

.data-table th {
    text-align: left;
    font-size: .75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: .05em;
    padding: 10px 12px;
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
    white-space: nowrap;
}

.data-table strong { color: var(--gray-900); font-weight: 600; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 100px;
    font-size: .75rem;
    font-weight: 600;
}

.badge.green { background: var(--green-50); color: var(--green-500); }
.badge.red { background: var(--red-50); color: var(--red-500); }
.badge.blue { background: var(--blue-50); color: var(--blue-600); }

.btn-sm-dash {
    padding: 8px 16px;
    font-size: .82rem;
    font-weight: 600;
    background: var(--blue-50);
    color: var(--blue-600);
    border: 1px solid rgba(37,99,235,.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all .15s;
    font-family: inherit;
}

.btn-sm-dash:hover {
    background: var(--blue-600);
    color: #fff;
}

/* Filters */
.filter-group {
    display: flex;
    gap: 8px;
}

.filter-select {
    padding: 8px 12px;
    font-size: .82rem;
    font-family: inherit;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--gray-700);
    cursor: pointer;
    outline: none;
}

.filter-select:focus {
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

/* === Storage Page === */
.storage-breakdown {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.storage-device-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 8px;
}

.storage-device-info strong {
    display: block;
    font-size: .9rem;
    color: var(--gray-900);
}

.storage-device-info span {
    font-size: .78rem;
    color: var(--gray-500);
}

.storage-device-pct {
    font-size: .85rem;
    font-weight: 700;
    color: var(--gray-700);
}

.storage-bar-lg {
    height: 12px;
    background: var(--gray-100);
    border-radius: 6px;
    overflow: hidden;
}

.storage-bar-lg-fill {
    height: 100%;
    border-radius: 6px;
    transition: width .6s ease;
}

.storage-bar-lg-fill.blue { background: linear-gradient(90deg, var(--blue-600), var(--blue-400)); }
.storage-bar-lg-fill.purple { background: linear-gradient(90deg, var(--purple-500), #c084fc); }
.storage-bar-lg-fill.green { background: linear-gradient(90deg, var(--green-500), var(--green-400)); }

.upgrade-box {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 24px;
    background: var(--blue-50);
    border-radius: var(--radius);
    border: 1px solid rgba(37,99,235,.15);
}

.upgrade-info h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.upgrade-info p {
    font-size: .875rem;
    color: var(--gray-500);
}

/* === Settings === */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.settings-grid .dash-card { margin-bottom: 0; }

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row-dash {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-group-dash {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group-dash label {
    font-size: .82rem;
    font-weight: 600;
    color: var(--gray-600);
}

.form-group-dash input {
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: .875rem;
    font-family: inherit;
    color: var(--gray-900);
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}

.form-group-dash input:focus {
    border-color: var(--blue-600);
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.btn-primary-dash {
    padding: 10px 20px;
    background: var(--blue-600);
    color: #fff;
    font-size: .875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: background .15s;
    align-self: flex-start;
}

.btn-primary-dash:hover { background: var(--blue-700); }

.btn-outline-dash {
    padding: 10px 20px;
    background: #fff;
    color: var(--gray-700);
    font-size: .875rem;
    font-weight: 600;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: all .15s;
}

.btn-outline-dash:hover {
    border-color: var(--gray-300);
    background: var(--gray-50);
}

/* Toggles */
.settings-toggles {
    display: flex;
    flex-direction: column;
}

.toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--gray-100);
    cursor: pointer;
    gap: 16px;
}

.toggle-row:last-child { border-bottom: none; }

.toggle-info strong {
    display: block;
    font-size: .875rem;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.toggle-info span {
    font-size: .78rem;
    color: var(--gray-500);
}

.toggle {
    -webkit-appearance: none;
    appearance: none;
    width: 44px;
    height: 24px;
    border-radius: 12px;
    background: var(--gray-200);
    cursor: pointer;
    position: relative;
    transition: background .2s;
    flex-shrink: 0;
}

.toggle::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0,0,0,.15);
    transition: transform .2s;
}

.toggle:checked {
    background: var(--blue-600);
}

.toggle:checked::before {
    transform: translateX(20px);
}

/* Credentials */
.credentials-box {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.credential-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.credential-row:last-child { border-bottom: none; }

.credential-row label {
    font-size: .82rem;
    font-weight: 600;
    color: var(--gray-500);
    width: 100px;
    flex-shrink: 0;
}

.credential-value {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    justify-content: flex-end;
}

.credential-value code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: .82rem;
    color: var(--gray-800);
    background: var(--gray-50);
    padding: 4px 10px;
    border-radius: 6px;
    border: 1px solid var(--gray-200);
}

.copy-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray-400);
    padding: 4px;
    border-radius: 4px;
    transition: color .15s, background .15s;
    display: flex;
    align-items: center;
}

.copy-btn:hover {
    color: var(--blue-600);
    background: var(--blue-50);
}

/* Plan Info */
.plan-current {
    display: flex;
    gap: 32px;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--gray-200);
    flex-wrap: wrap;
}

.plan-name-label {
    display: block;
    font-size: .75rem;
    color: var(--gray-500);
    margin-bottom: 2px;
    font-weight: 500;
}

.plan-name-value {
    font-size: 1rem;
    color: var(--gray-900);
}

.plan-actions-row {
    display: flex;
    gap: 10px;
}

/* === Responsive === */
@media (max-width: 1024px) {
    .cards-grid { grid-template-columns: repeat(2, 1fr); }
    .cards-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
    .two-col { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform .3s cubic-bezier(.4,0,.2,1);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 8px 0 24px rgba(0,0,0,.2);
    }

    .mobile-header {
        display: flex;
    }

    .main-content {
        margin-left: 0;
        padding: 72px 16px 24px;
    }

    .cards-grid { grid-template-columns: 1fr; }
    .cards-grid.cols-3 { grid-template-columns: 1fr; }
    .two-col { grid-template-columns: 1fr; }

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

    .filter-group { flex-direction: column; }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .upgrade-box {
        flex-direction: column;
        text-align: center;
    }

    .form-row-dash { grid-template-columns: 1fr; }

    .plan-current {
        flex-direction: column;
        gap: 16px;
    }

    .plan-actions-row {
        flex-direction: column;
    }

    .plan-actions-row button { width: 100%; }
}