:root {
    --bg: #f4f7fb;
    --bg-elevated: rgba(255, 255, 255, 0.78);
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --border: rgba(15, 23, 42, 0.08);
    --text: #0f172a;
    --muted: #64748b;
    --primary: #0f766e;
    --primary-strong: #115e59;
    --accent: #f59e0b;
    --danger: #dc2626;
    --shadow: 0 20px 45px rgba(15, 23, 42, 0.09);
    --radius: 22px;
}

html[data-theme="dark"] {
    --bg: #08111f;
    --bg-elevated: rgba(11, 23, 40, 0.84);
    --surface: #0f172a;
    --surface-2: #111c31;
    --border: rgba(148, 163, 184, 0.12);
    --text: #e5eefb;
    --muted: #94a3b8;
    --primary: #2dd4bf;
    --primary-strong: #14b8a6;
    --accent: #fbbf24;
    --danger: #f87171;
    --shadow: 0 24px 50px rgba(2, 6, 23, 0.42);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.14), transparent 26%),
        radial-gradient(circle at top right, rgba(245, 158, 11, 0.12), transparent 22%),
        var(--bg);
    color: var(--text);
    min-height: 100vh;
}

a {
    text-decoration: none;
}

.app-shell {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    background: rgba(255, 255, 255, 0.45);
    border-right: 1px solid var(--border);
    backdrop-filter: blur(18px);
    position: sticky;
    top: 0;
    height: 100vh;
    transition: width 0.25s ease, transform 0.25s ease;
    z-index: 1040;
}

html[data-theme="dark"] .sidebar {
    background: rgba(8, 17, 31, 0.76);
}

.sidebar.collapsed {
    width: 92px;
}

.sidebar.collapsed .brand-copy,
.sidebar.collapsed .nav-link span,
.sidebar.collapsed .sidebar-footer {
    display: none;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    margin-bottom: 1.6rem;
}

.brand-mark {
    width: 48px;
    height: 48px;
    border-radius: 16px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    color: #fff;
    box-shadow: var(--shadow);
}

.brand-copy h5 {
    font-size: 1rem;
}

.brand-copy small,
.eyebrow,
.text-muted {
    color: var(--muted) !important;
}

.sidebar-nav {
    display: grid;
    gap: 0.45rem;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    border-radius: 18px;
    padding: 0.9rem 1rem;
    color: var(--text);
    font-weight: 600;
    transition: all 0.2s ease;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.12), rgba(245, 158, 11, 0.12));
    color: var(--primary-strong);
    transform: translateX(2px);
}

.glass-card,
.panel-card,
.metric-card,
.login-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.app-main {
    flex: 1;
    min-width: 0;
}

.topbar {
    padding-top: 1rem;
}

.page-title {
    font-size: clamp(1.3rem, 3vw, 1.9rem);
    font-weight: 800;
}

.page-content {
    padding-top: 1rem;
}

.btn-icon {
    width: 44px;
    height: 44px;
    display: inline-grid;
    place-items: center;
    border-radius: 14px;
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    color: var(--text);
}

.profile-chip {
    border: 1px solid var(--border);
    background: var(--bg-elevated);
    border-radius: 999px;
    padding: 0.45rem 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.avatar-circle {
    width: 38px;
    height: 38px;
    display: inline-grid;
    place-items: center;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    font-weight: 700;
}

.notification-menu {
    width: 360px;
    border-radius: 18px;
    background: var(--surface);
    overflow: hidden;
}

.notification-item {
    padding: 0.85rem 1rem;
    border-top: 1px solid var(--border);
}

.notification-dot {
    position: absolute;
    top: 10px;
    right: 11px;
    width: 10px;
    height: 10px;
    background: var(--danger);
    border-radius: 50%;
}

.metric-card {
    padding: 1.2rem;
    height: 100%;
}

.metric-value {
    font-size: 2rem;
    font-weight: 800;
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.14), rgba(245, 158, 11, 0.16));
    color: var(--primary-strong);
}

.panel-card {
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.section-title {
    font-size: 1.05rem;
    font-weight: 700;
}

.table {
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(148, 163, 184, 0.05);
    --bs-table-color: var(--text);
}

.table thead th {
    color: var(--muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom-color: var(--border);
}

.table td,
.table th {
    border-color: var(--border);
    vertical-align: middle;
}

.form-control,
.form-select,
.input-group-text {
    border-radius: 14px;
    border-color: var(--border);
    background: var(--surface);
    color: var(--text);
    min-height: 46px;
}

.form-control:focus,
.form-select:focus {
    border-color: rgba(15, 118, 110, 0.4);
    box-shadow: 0 0 0 0.2rem rgba(15, 118, 110, 0.12);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-strong));
    border-color: transparent;
    border-radius: 14px;
    padding: 0.7rem 1rem;
}

.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-danger {
    border-radius: 14px;
}

.status-pill {
    padding: 0.4rem 0.7rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
    display: inline-flex;
}

.auth-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(2, 6, 23, 0.78), rgba(15, 118, 110, 0.5)),
        url('https://images.unsplash.com/photo-1534438327276-14e5300c3a48?auto=format&fit=crop&w=1600&q=80') center/cover no-repeat;
}

.auth-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(245, 158, 11, 0.18), transparent 24%),
        radial-gradient(circle at 80% 30%, rgba(45, 212, 191, 0.14), transparent 22%),
        linear-gradient(180deg, rgba(15, 23, 42, 0.08), rgba(15, 23, 42, 0.45));
    pointer-events: none;
}

.login-wrap {
    width: min(1140px, 100%);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 1.25rem;
    position: relative;
    z-index: 1;
}

.login-hero,
.login-card {
    padding: 2rem;
}

.login-hero {
    color: #fff;
    border-radius: 30px;
    background:
        linear-gradient(160deg, rgba(6, 10, 18, 0.72), rgba(15, 118, 110, 0.3)),
        linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02));
    min-height: 620px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(6px);
}

.hero-stat {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 20px;
    padding: 1rem;
}

.mini-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.list-clean {
    list-style: none;
    padding: 0;
    margin: 0;
}

.list-clean li + li {
    margin-top: 0.8rem;
}

.empty-state {
    padding: 2rem 1rem;
    text-align: center;
    color: var(--muted);
}

.mobile-list-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1rem;
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.06);
}

.mobile-list-meta {
    display: grid;
    gap: 0.45rem;
    font-size: 0.92rem;
    color: var(--muted);
}

.detail-stack .panel-card {
    margin-top: 0.5rem;
    margin-bottom: 1.5rem;
}

.settings-nav .list-group-item {
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text);
    border-radius: 14px;
    margin-bottom: 0.55rem;
    font-weight: 600;
}

.settings-nav .list-group-item:hover {
    background: linear-gradient(135deg, rgba(15, 118, 110, 0.1), rgba(245, 158, 11, 0.08));
    color: var(--primary-strong);
}

.member-avatar {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    object-fit: cover;
    background: var(--surface-2);
}

.spinner-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.25);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.spinner-overlay.show {
    display: flex;
}

@media (max-width: 991.98px) {
    .sidebar {
        position: fixed;
        transform: translateX(-100%);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .login-wrap {
        grid-template-columns: 1fr;
    }

    .login-hero {
        min-height: 360px;
    }

    .panel-card {
        padding: 1rem;
    }

    .quick-actions {
        width: 100%;
    }

    .quick-actions .btn {
        width: 100%;
    }
}