:root {
    font-family: Inter, Segoe UI, Arial, sans-serif;
    color: #172033;
    background: #f4f6f9;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
}

.topbar {
    min-height: 68px;
    padding: 14px 32px;
    background: #ffffff;
    border-bottom: 1px solid #dfe4ec;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.subtitle {
    display: block;
    margin-top: 3px;
    color: #697386;
    font-size: 13px;
}

.user-block {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page {
    max-width: 1240px;
    margin: 0 auto;
    padding: 32px 24px 64px;
}

.panel, .login-card {
    background: #ffffff;
    border: 1px solid #dfe4ec;
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(30, 42, 65, 0.05);
}

.panel {
    padding: 24px;
    margin-bottom: 24px;
}

.login-card {
    max-width: 430px;
    margin: 72px auto 0;
    padding: 32px;
}

h1, h2 { margin-top: 0; }
p { color: #606b7d; }

.form-grid, .upload-grid {
    display: grid;
    gap: 18px;
}

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

.wide {
    grid-column: 1 / -1;
}

label {
    display: grid;
    gap: 7px;
    font-weight: 600;
    font-size: 14px;
}

input, textarea {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid #cbd3df;
    border-radius: 7px;
    font: inherit;
    background: #fff;
}

input:focus, textarea:focus {
    outline: 2px solid rgba(40, 105, 190, .2);
    border-color: #2869be;
}

.button {
    appearance: none;
    border: 0;
    border-radius: 7px;
    padding: 9px 13px;
    cursor: pointer;
    font-weight: 700;
}

.primary { background: #2869be; color: white; }
.secondary { background: #e9edf3; color: #233047; }
.warning { background: #f6e7b0; color: #604600; }
.danger { background: #f7d5d8; color: #8a1720; }

.notice {
    padding: 13px 16px;
    margin-bottom: 20px;
    border-radius: 8px;
    border: 1px solid;
}

.success { background: #e6f5ec; border-color: #a9d7b8; }
.error { background: #fce9ea; border-color: #e1aeb3; }

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

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

th, td {
    text-align: left;
    padding: 13px 11px;
    border-bottom: 1px solid #e5e9ef;
    vertical-align: top;
}

th {
    background: #f8f9fb;
    color: #536073;
}

.muted {
    color: #798496;
    font-size: 12px;
    margin-top: 4px;
}

.actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
}

.active { background: #dff2e6; color: #176134; }
.revoked { background: #f5dfe1; color: #8b1e27; }
.expired { background: #e6e9ee; color: #596474; }

.empty {
    text-align: center;
    color: #748094;
    padding: 30px;
}

@media (max-width: 760px) {
    .topbar { padding: 14px 18px; }
    .page { padding: 20px 12px 40px; }
    .upload-grid { grid-template-columns: 1fr; }
    .wide { grid-column: auto; }
}