:root {
    --bg: #f8fafc;
    --card: #ffffff;
    --ink: #0f172a;
    --muted: #64748b;
    --brand: #ee2a7b;
    --line: #e2e8f0;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

.admin-shell {
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.25rem;
}

.admin-nav {
    background: #0f172a;
    color: #fff;
    border-radius: 14px;
    padding: 0.9rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.admin-nav a {
    color: #cbd5e1;
    text-decoration: none;
    margin-right: 0.8rem;
    font-weight: 600;
}

.admin-nav a.active,
.admin-nav a:hover {
    color: #fff;
}

.admin-nav .right a {
    margin-right: 0;
    background: #1e293b;
    padding: 0.45rem 0.8rem;
    border-radius: 999px;
}

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

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 14px;
    padding: 1rem;
}

.stat {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--brand);
    margin-top: 0.35rem;
}

h1 {
    margin: 1rem 0 0.4rem;
    font-size: 1.5rem;
}

p.sub {
    margin: 0 0 1rem;
    color: var(--muted);
}

.table-wrap {
    overflow: auto;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 14px;
}

table {
    border-collapse: collapse;
    width: 100%;
    min-width: 900px;
}

th, td {
    padding: 0.7rem;
    border-bottom: 1px solid var(--line);
    font-size: 0.9rem;
    text-align: left;
    vertical-align: top;
}

th {
    position: sticky;
    top: 0;
    background: #f8fafc;
    z-index: 1;
}

.muted { color: var(--muted); }

.login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 1.2rem;
}

label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
    font-weight: 700;
}

input {
    width: 100%;
    padding: 0.72rem;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    margin-bottom: 0.8rem;
}

button {
    width: 100%;
    border: 0;
    padding: 0.78rem;
    border-radius: 999px;
    color: #fff;
    background: var(--brand);
    font-weight: 700;
    cursor: pointer;
}

.error {
    background: #fff1f2;
    border: 1px solid #fecdd3;
    color: #9f1239;
    padding: 0.7rem;
    border-radius: 10px;
    margin-bottom: 0.8rem;
}