:root {
    --bg: #eef1e8;
    --panel: #ffffff;
    --panel-muted: #f8faf5;
    --text: #1f2933;
    --muted: #64748b;
    --line: #d7dfcf;
    --accent: #0f766e;
    --accent-dark: #115e59;
    --danger: #b42318;
    --danger-bg: #fef3f2;
    --success: #166534;
    --success-bg: #ecfdf3;
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background:
        radial-gradient(circle at top left, rgba(15, 118, 110, 0.12), transparent 24rem),
        linear-gradient(180deg, #f7f8f2 0%, var(--bg) 100%);
    color: var(--text);
}

a {
    color: var(--accent);
    text-decoration: none;
}

.shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 280px 1fr;
}

.sidebar {
    padding: 2rem 1.25rem;
    background: rgba(255, 255, 255, 0.85);
    border-right: 1px solid rgba(215, 223, 207, 0.9);
    display: flex;
    flex-direction: column;
    gap: 2rem;
    backdrop-filter: blur(12px);
}

.brand a {
    display: inline-block;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
}

.brand p,
.muted,
small,
.note {
    color: var(--muted);
}

.nav {
    display: grid;
    gap: 0.5rem;
}

.nav a {
    padding: 0.8rem 0.9rem;
    border-radius: 12px;
    color: var(--text);
}

.nav a:hover {
    background: var(--panel-muted);
}

.sidebar-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
}

.content {
    padding: 2rem;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-header h1,
.section-header h2 {
    margin: 0.2rem 0 0.35rem;
}

.eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    color: var(--accent);
    font-weight: 700;
}

.panel,
.stat-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(215, 223, 207, 0.9);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.panel {
    padding: 1.4rem;
}

.panel.narrow {
    max-width: 520px;
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.grid.two-up,
.stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stats-grid {
    margin-bottom: 1.5rem;
}

.stat-card {
    padding: 1.25rem;
}

.stat-card span {
    display: block;
    color: var(--muted);
    margin-bottom: 0.35rem;
}

.stat-card strong {
    font-size: 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stack {
    display: grid;
    gap: 1rem;
}

.field {
    display: grid;
    gap: 0.35rem;
}

.inline-form {
    display: flex;
    align-items: end;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.inline-field {
    min-width: 240px;
}

input,
select,
button {
    font: inherit;
}

input,
select {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--text);
    border-radius: 12px;
    padding: 0.82rem 0.9rem;
}

button.button {
    border: 0;
    border-radius: 12px;
    padding: 0.9rem 1rem;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    cursor: pointer;
}

button.button:hover {
    background: var(--accent-dark);
}

.button-secondary {
    background: #dcece9;
    color: var(--accent-dark);
}

.button-secondary:hover {
    background: #cde4df;
}

.button-full {
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 0.85rem 0.65rem;
    text-align: left;
    border-bottom: 1px solid var(--line);
    vertical-align: top;
}

.table.compact th,
.table.compact td {
    padding-left: 0;
    padding-right: 0;
}

.empty-state {
    margin: 0;
    padding: 1rem 0;
    color: var(--muted);
}

.flash {
    margin-bottom: 1rem;
    border-radius: 14px;
    padding: 0.9rem 1rem;
    border: 1px solid transparent;
}

.flash-success {
    background: var(--success-bg);
    border-color: #bbf7d0;
    color: var(--success);
}

.flash-error {
    background: var(--danger-bg);
    border-color: #fecaca;
    color: var(--danger);
}

.summary-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin: 0 0 1.5rem;
}

.summary-list div {
    background: var(--panel-muted);
    border-radius: 14px;
    padding: 0.9rem;
}

.summary-list dt {
    color: var(--muted);
    margin-bottom: 0.4rem;
}

.summary-list dd {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
}

.score-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.score-field small {
    color: var(--muted);
}

@media (max-width: 960px) {
    .shell,
    .grid.two-up,
    .stats-grid,
    .summary-list,
    .score-grid {
        grid-template-columns: 1fr;
    }

    .sidebar {
        gap: 1rem;
    }

    .content {
        padding: 1rem;
    }
}