:root {
    --brand: #2b4162;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --border: rgba(43, 65, 98, 0.12);
    --text: #1a1c25;
    --muted: #5b6270;
    --radius: 18px;
    --shadow: 0 20px 60px rgba(43, 65, 98, 0.14);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
}

.container {
    width: min(1080px, 92vw);
    margin: 0 auto;
}

.admin-header {
    background: linear-gradient(135deg, rgba(43, 65, 98, 0.95), #3a588a);
    color: #fff;
    padding: 48px 0 64px;
    box-shadow: 0 18px 50px rgba(43, 65, 98, 0.25);
}

.admin-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.admin-header h1 {
    margin: 0;
    font-size: clamp(28px, 4vw, 40px);
}

.back-link {
    color: #fff;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 10px 20px;
    border-radius: 999px;
    text-decoration: none;
}

main.container {
    margin-top: -48px;
    padding-bottom: 80px;
}

.panel {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 32px 36px;
    box-shadow: var(--shadow);
    margin-bottom: 32px;
    border: 1px solid rgba(255, 255, 255, 0.6);
}

.panel h2 {
    margin-top: 0;
    color: var(--brand);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 18px;
}

.panel-header p {
    margin: 4px 0 0;
    color: var(--muted);
}

.alert {
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 24px;
    font-weight: 500;
}

.alert-error {
    background: rgba(210, 75, 90, 0.12);
    border: 1px solid rgba(210, 75, 90, 0.4);
    color: #7b1222;
}

.alert-success {
    background: rgba(43, 65, 98, 0.12);
    border: 1px solid rgba(43, 65, 98, 0.4);
    color: var(--brand);
}

.alert ul {
    padding-left: 20px;
    margin: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px 24px;
    align-items: end;
}

.form-grid label {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-weight: 600;
    color: var(--muted);
}

.form-grid input,
.form-grid select,
.form-grid textarea {
    border-radius: 12px;
    border: 1px solid var(--border);
    padding: 14px 16px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    background: #fbfcff;
}

.form-grid textarea {
    resize: vertical;
}

.primary-button,
.ghost-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.primary-button {
    background: linear-gradient(135deg, var(--brand), #3a588a);
    color: #fff;
    box-shadow: 0 14px 40px rgba(43, 65, 98, 0.25);
}

.primary-button:hover {
    transform: translateY(-1px);
}

.ghost-button {
    border-color: var(--brand);
    color: var(--brand);
    background: transparent;
}

.ghost-button:hover {
    background: rgba(43, 65, 98, 0.08);
}

.ghost-button.small {
    padding: 8px 14px;
    font-size: 14px;
}

.inline-form {
    display: inline;
}

.account-layout {
    display: grid;
    grid-template-columns: minmax(260px, 320px) 1fr;
    gap: 24px;
}

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

.account-table table {
    width: 100%;
    border-collapse: collapse;
    min-width: 460px;
}

.account-table th,
.account-table td {
    text-align: left;
    padding: 12px 16px;
    border-bottom: 1px solid rgba(43, 65, 98, 0.08);
}

.account-table th {
    color: var(--muted);
    font-weight: 600;
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(43, 65, 98, 0.14);
    color: var(--brand);
    font-weight: 600;
    font-size: 13px;
}

.narrow {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.hidden {
    display: none;
}

.content-field textarea {
    min-height: 110px;
}

@media (max-width: 900px) {
    .account-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    main.container {
        margin-top: -32px;
    }

    .panel {
        padding: 24px;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }
}