:root {
    --tns-bg: #f4f7fb;
    --tns-surface: #ffffff;
    --tns-surface-soft: #f8fafc;
    --tns-border: #dbe3ee;
    --tns-text: #0f172a;
    --tns-text-soft: #5f6b7a;
    --tns-primary: #0f5eea;
    --tns-primary-dark: #0b48b5;
    --tns-success: #0f9f6e;
    --tns-warning: #c2870a;
    --tns-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
    --tns-radius: 20px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Plus Jakarta Sans", sans-serif;
    background: linear-gradient(180deg, #f7f9fc 0%, #eef3f8 100%);
    color: var(--tns-text);
    min-height: 100vh;
}

a {
    text-decoration: none;
}

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

.app-sidebar {
    width: 290px;
    background: rgba(255, 255, 255, 0.96);
    border-right: 1px solid var(--tns-border);
    padding: 1.5rem 1.25rem;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    z-index: 1030;
}

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

.brand-mark {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: linear-gradient(135deg, #0f5eea 0%, #0f7ae5 100%);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.sidebar-brand h1 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.sidebar-brand p {
    margin: 0.2rem 0 0;
    color: var(--tns-text-soft);
    font-size: 0.875rem;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.sidebar-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.85rem 1rem;
    border-radius: 16px;
    color: var(--tns-text-soft);
    font-weight: 600;
}

.sidebar-link:hover,
.sidebar-link.active {
    background: #eef4ff;
    color: var(--tns-primary);
}

.sidebar-footer {
    margin-top: auto;
    padding: 1rem;
    background: var(--tns-surface-soft);
    border: 1px solid var(--tns-border);
    border-radius: 18px;
}

.app-content,
.public-shell {
    flex: 1;
    min-width: 0;
}

.topbar {
    padding: 1.5rem 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.page-title {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
}

.page-description {
    margin-top: 0.35rem;
    color: var(--tns-text-soft);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.quick-links {
    display: flex;
    gap: 0.4rem;
    padding: 0.35rem;
    background: rgba(255, 255, 255, 0.75);
    border-radius: 999px;
    border: 1px solid var(--tns-border);
}

.quick-links a {
    color: var(--tns-text-soft);
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
    font-size: 0.92rem;
    font-weight: 600;
}

.quick-links a:hover {
    background: #f1f5f9;
    color: var(--tns-primary);
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0.8rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--tns-border);
}

.user-name {
    font-weight: 600;
}

.content-area {
    padding: 1.5rem;
}

.surface-card,
.auth-card,
.widget-card,
.table-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(219, 227, 238, 0.95);
    border-radius: var(--tns-radius);
    box-shadow: var(--tns-shadow);
}

.surface-card {
    padding: 1.4rem;
}

.auth-shell {
    min-height: calc(100vh - 140px);
    display: grid;
    place-items: center;
}

.auth-card {
    width: 100%;
    max-width: 460px;
    padding: 2rem;
}

.auth-brand {
    margin-bottom: 1.5rem;
    text-align: center;
}

.auth-brand .brand-mark {
    margin: 0 auto 1rem;
}

.stats-grid,
.action-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 1rem;
}

.widget-card {
    padding: 1.25rem;
    height: 100%;
}

.widget-card .value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-top: 0.5rem;
}

.module-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(247, 250, 252, 0.96) 100%);
    border: 1px solid var(--tns-border);
    border-radius: 24px;
    padding: 1.5rem;
    box-shadow: var(--tns-shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.module-icon {
    width: 58px;
    height: 58px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    background: #eef4ff;
    color: var(--tns-primary);
}

.module-card h3 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
}

.module-card p {
    margin: 0;
    color: var(--tns-text-soft);
    min-height: 3rem;
}

.table-card {
    padding: 1rem;
}

.table thead th {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--tns-text-soft);
    border-bottom-width: 1px;
}

.table td,
.table th {
    vertical-align: middle;
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 0.9rem;
}

.summary-list {
    display: grid;
    gap: 0.75rem;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.85rem 1rem;
    border: 1px solid var(--tns-border);
    border-radius: 16px;
    background: var(--tns-surface-soft);
}

.clipboard-card {
    border: 1px solid var(--tns-border);
    border-radius: 18px;
    padding: 1.1rem;
    background: #fff;
    height: 100%;
}

.clipboard-card pre {
    white-space: pre-wrap;
    margin: 0;
    font-family: inherit;
    color: var(--tns-text-soft);
    background: transparent;
}

.category-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.55rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--tns-border);
    color: var(--tns-text-soft);
    font-weight: 600;
}

.category-pill.active,
.category-pill:hover {
    color: var(--tns-primary);
    background: #eef4ff;
}

.empty-state {
    border: 1px dashed var(--tns-border);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    color: var(--tns-text-soft);
    background: rgba(255, 255, 255, 0.7);
}

.pagination .page-link {
    border-radius: 12px;
    margin: 0 0.15rem;
    border: 1px solid var(--tns-border);
    color: var(--tns-text);
}

.pagination .page-item.active .page-link {
    background: var(--tns-primary);
    border-color: var(--tns-primary);
}

.toast {
    border-radius: 16px;
    border: 1px solid var(--tns-border);
    box-shadow: var(--tns-shadow);
}

@media (max-width: 991.98px) {
    .app-sidebar {
        position: fixed;
        left: -100%;
        transition: left 0.25s ease;
    }

    .app-sidebar.open {
        left: 0;
    }

    .topbar {
        padding-top: 1rem;
    }

    .content-area {
        padding: 1rem;
    }
}

@media (max-width: 767.98px) {
    .page-title {
        font-size: 1.35rem;
    }

    .module-card p {
        min-height: auto;
    }

    .topbar {
        flex-direction: column;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }
}