:root {
    --bg: #f4efe7;
    --card: #fffdf9;
    --ink: #1e2a2f;
    --muted: #65737a;
    --accent: #0d6b5f;
    --accent-soft: #d9efe8;
    --border: #d8d0c2;
    --danger: #9f2f21;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", sans-serif;
    color: var(--ink);
    background: linear-gradient(180deg, #faf6ef 0%, var(--bg) 100%);
}

a {
    color: var(--accent);
}

.shell-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(8px);
}

.shell-header h1,
.shell-header p {
    margin: 0;
}

.shell-header p {
    color: var(--muted);
}

.shell-nav {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.shell-nav form {
    margin: 0;
}

.shell-main {
    padding: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: 0 20px 40px rgba(30, 42, 47, 0.06);
}

.card.narrow {
    max-width: 420px;
    margin: 3rem auto;
}

.stack > * + * {
    margin-top: 1rem;
}

input,
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: white;
}

button {
    border: none;
    border-radius: 999px;
    background: var(--accent);
    color: white;
    padding: 0.8rem 1.2rem;
    cursor: pointer;
}

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

th,
td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.flash-list {
    list-style: none;
    padding: 0;
}

.flash {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1rem;
}

.flash-success {
    background: var(--accent-soft);
}

.flash-error {
    background: #f5ddd8;
    color: var(--danger);
}

.two-col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: var(--accent-soft);
}

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

.artifact-list li + li {
    margin-top: 0.5rem;
}