:root {
    --bg: #eef1eb;
    --bg-alt: #f8f7f2;
    --surface: rgba(255, 255, 255, 0.88);
    --surface-strong: #ffffff;
    --line: rgba(15, 23, 42, 0.09);
    --text: #1d2735;
    --muted: #637082;
    --brand: #0b5d6b;
    --brand-dark: #083f48;
    --accent: #b45309;
    --success: #15803d;
    --warning: #b45309;
    --radius: 24px;
    --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at top right, rgba(11, 93, 107, 0.16), transparent 28%),
        linear-gradient(145deg, #edf2ee 0%, #f6f4ec 100%);
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

.layout {
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr);
    min-height: 100vh;
}

.sidebar {
    padding: 28px 22px;
    background: rgba(8, 63, 72, 0.95);
    color: #eff6f6;
    position: sticky;
    top: 0;
    height: 100vh;
}

.brand {
    display: flex;
    gap: 14px;
    align-items: center;
    margin-bottom: 24px;
}

.brand-mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    background: linear-gradient(135deg, #f4b860, #d97706);
    color: #1f2937;
    font-weight: 800;
}

.brand small,
.sidebar-block small { color: rgba(239, 246, 246, 0.72); display: block; }

.sidebar-block,
.sidebar-nav a,
.panel,
.info-card,
.metric-card,
.auth-card,
.flash {
    border-radius: var(--radius);
}

.sidebar-block {
    padding: 16px 18px;
    background: rgba(255, 255, 255, 0.08);
    margin-bottom: 18px;
}

.sidebar-label {
    display: block;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(239, 246, 246, 0.62);
}

.sidebar-nav {
    display: grid;
    gap: 10px;
}

.sidebar-nav a {
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.04);
}

.content-area {
    padding: 28px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: start;
    margin-bottom: 22px;
}

.page-title {
    margin: 4px 0 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.02;
}

.eyebrow {
    margin: 0;
    color: var(--accent);
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-weight: 700;
}

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

.user-chip {
    padding: 12px 16px;
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    border-radius: 18px;
}

.user-chip small { color: var(--muted); display: block; }

.page-shell {
    display: grid;
    gap: 24px;
}

.panel,
.info-card,
.metric-card,
.auth-card,
.flash,
.stack-card {
    background: var(--surface);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
}

.panel,
.info-card,
.auth-card {
    padding: 24px;
}

.hero-panel {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 24px;
}

.lead,
.metric-label,
.data-list span,
.stack-card span,
.meta-row,
.panel p { color: var(--muted); }

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.button {
    padding: 11px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.button.primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    color: #fff;
}

.button.secondary {
    background: rgba(255, 255, 255, 0.65);
    border-color: rgba(11, 93, 107, 0.2);
    color: var(--brand-dark);
}

.panel-grid {
    display: grid;
    gap: 20px;
}

.panel-grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.panel-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.metric-card strong {
    display: block;
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    margin-top: 10px;
}

.panel-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: start;
    margin-bottom: 14px;
}

.panel-head h2,
.info-card h2 { margin: 0; font-size: 1.35rem; }

.badge {
    display: inline-flex;
    align-items: center;
    padding: 7px 11px;
    border-radius: 999px;
    background: rgba(11, 93, 107, 0.1);
    color: var(--brand-dark);
    font-size: 0.84rem;
}

.badge.success { background: rgba(21, 128, 61, 0.12); color: var(--success); }
.badge.warning { background: rgba(180, 83, 9, 0.14); color: var(--warning); }
.badge.neutral { background: rgba(99, 112, 130, 0.12); color: var(--muted); }

.data-list {
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
    list-style: none;
}

.data-list li {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    padding-bottom: 10px;
}

.table-wrap {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
}

.data-table.compact { min-width: 0; }

.data-table th,
.data-table td {
    text-align: left;
    padding: 14px 10px;
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
}

.data-table th {
    color: var(--muted);
    font-weight: 600;
}

.stack-list {
    display: grid;
    gap: 12px;
}

.stack-card {
    padding: 16px 18px;
    display: grid;
    gap: 6px;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.filter-pill {
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(11, 93, 107, 0.08);
    color: var(--brand-dark);
}

.filter-pill.active {
    background: linear-gradient(135deg, var(--brand), var(--brand-dark));
    color: #fff;
}

.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
}

.meta-row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

.auth-card {
    max-width: 520px;
}

.auth-form {
    display: grid;
    gap: 10px;
}

.auth-form input {
    width: 100%;
    padding: 13px 14px;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    background: #fff;
}

.flash-wrap {
    display: grid;
    gap: 12px;
}

.flash {
    padding: 14px 18px;
}

@media (max-width: 1100px) {
    .layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: relative;
        height: auto;
    }
}

@media (max-width: 900px) {
    .panel-grid.two,
    .panel-grid.three,
    .panel-grid.four,
    .hero-panel {
        grid-template-columns: 1fr;
    }

    .topbar {
        flex-direction: column;
    }
}

.filter-form {
    align-items: center;
}

.search-input,
.select-input,
.crud-form input,
.crud-form select,
.crud-form textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid rgba(15, 23, 42, 0.14);
    background: #fff;
}

.filter-form .search-input {
    max-width: 320px;
}

.filter-form .select-input {
    max-width: 240px;
}

.crud-form {
    display: grid;
    gap: 10px;
}

.crud-form small {
    color: var(--muted);
}

.form-panel {
    max-width: 860px;
}

.table-actions {
    display: flex;
    gap: 12px;
}