:root {
    --bg: #f4f6fb;
    --card: #ffffff;
    --ink: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --primary: #2563eb;
    --primary-d: #1d4ed8;
    --green: #16a34a;
    --green-bg: #dcfce7;
    --red: #dc2626;
    --red-bg: #fee2e2;
    --amber: #b45309;
    --amber-bg: #fef3c7;
    --shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.5;
}

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

/* ---------- Public form ---------- */
.page-public {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 100vh;
    padding: 40px 16px;
}
.card {
    width: 100%;
    max-width: 480px;
    background: var(--card);
    border-radius: 16px;
    box-shadow: var(--shadow);
    padding: 32px;
}
.card h1 { margin: 0 0 4px; font-size: 1.6rem; }
.subtitle { margin: 0 0 24px; color: var(--muted); }

form label { display: block; font-weight: 600; font-size: .9rem; margin: 14px 0 6px; }
form input, form textarea, form select {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--border);
    border-radius: 9px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
}
form input:focus, form textarea:focus, form select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
textarea { resize: vertical; }

.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }

.btn {
    display: inline-block;
    border: 0;
    border-radius: 9px;
    padding: 11px 18px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.2;
}
.btn-primary { background: var(--primary); color: #fff; margin-top: 22px; width: 100%; }
.btn-primary:hover { background: var(--primary-d); }

.alert { border-radius: 10px; padding: 12px 14px; margin-bottom: 18px; font-size: .94rem; }
.alert ul { margin: 0; padding-left: 18px; }
.alert-success { background: var(--green-bg); color: #166534; }
.alert-error { background: var(--red-bg); color: #991b1b; }

.public-footer { margin-top: 18px; font-size: .85rem; }
.public-footer a { color: var(--muted); text-decoration: none; }

/* ---------- Admin ---------- */
.admin-wrap { max-width: 1100px; margin: 0 auto; padding: 24px 16px 60px; }
.admin-top {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; flex-wrap: wrap; margin-bottom: 20px;
}
.admin-top h1 { font-size: 1.4rem; margin: 0; }
.admin-top .who { color: var(--muted); font-size: .9rem; }

.stats { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.stat {
    background: var(--card); border: 1px solid var(--border); border-radius: 12px;
    padding: 12px 16px; min-width: 110px;
}
.stat .n { font-size: 1.5rem; font-weight: 700; }
.stat .l { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }

.toolbar {
    display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
    background: var(--card); border: 1px solid var(--border); border-radius: 12px;
    padding: 12px; margin-bottom: 16px;
}
.toolbar input[type=text], .toolbar select { width: auto; flex: 1 1 200px; }
.toolbar .spacer { flex: 1; }

.btn-sm { padding: 7px 12px; font-size: .85rem; border-radius: 8px; }
.btn-ghost { background: #fff; border: 1px solid var(--border); color: var(--ink); }
.btn-ghost:hover { background: #f9fafb; }
.btn-green { background: var(--green); color: #fff; }
.btn-red { background: var(--red); color: #fff; }
.btn-amber { background: var(--amber); color: #fff; }

table.grid { width: 100%; border-collapse: collapse; background: var(--card);
    border: 1px solid var(--border); border-radius: 12px; overflow: hidden; }
table.grid th, table.grid td { padding: 11px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; font-size: .92rem; }
table.grid th { background: #f9fafb; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
table.grid tr:last-child td { border-bottom: 0; }
table.grid td.actions { white-space: nowrap; }
table.grid form { display: inline; }

.badge { display: inline-block; padding: 3px 9px; border-radius: 999px; font-size: .76rem; font-weight: 700; text-transform: capitalize; }
.badge-pending { background: var(--amber-bg); color: var(--amber); }
.badge-approved { background: var(--green-bg); color: #166534; }
.badge-rejected { background: var(--red-bg); color: #991b1b; }

.muted { color: var(--muted); }
.empty { text-align: center; padding: 40px; color: var(--muted); }

.pager { display: flex; gap: 6px; justify-content: center; margin-top: 18px; }
.pager a, .pager span { padding: 7px 12px; border-radius: 8px; border: 1px solid var(--border); background: #fff; text-decoration: none; font-size: .88rem; }
.pager .current { background: var(--primary); color: #fff; border-color: var(--primary); }

/* login */
.page-login { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }

/* detail */
.detail { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 24px; max-width: 640px; margin: 0 auto; }
.detail dl { display: grid; grid-template-columns: 140px 1fr; gap: 10px 16px; margin: 0 0 20px; }
.detail dt { color: var(--muted); font-weight: 600; }
.detail dd { margin: 0; word-break: break-word; }
.detail .row-actions { display: flex; gap: 8px; flex-wrap: wrap; }