:root {
    --admin-bg: #f5f7fb;
    --admin-surface: #ffffff;
    --admin-border: #d9e1ec;
    --admin-primary: #1f6feb;
    --admin-primary-dark: #1a58bd;
    --admin-danger: #d32f2f;
    --admin-text: #1a2b4c;
    --admin-muted: #5a6b85;
    --admin-radius: 12px;
    --admin-shadow: 0 10px 30px rgba(26, 43, 76, 0.08);
}

* {
    box-sizing: border-box;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
    white-space: nowrap;
}

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

a {
    color: var(--admin-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: min(1100px, calc(100% - 40px));
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    border-radius: var(--admin-radius);
    padding: 0.6rem 1.1rem;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
}

.btn--primary {
    background: var(--admin-primary);
    color: #fff;
    box-shadow: 0 6px 16px rgba(31, 111, 235, 0.25);
}

.btn--primary:hover {
    background: var(--admin-primary-dark);
}

.btn--ghost {
    background: rgba(31, 111, 235, 0.12);
    color: var(--admin-primary);
}

.btn--ghost:hover {
    background: rgba(31, 111, 235, 0.2);
}

.btn--danger {
    background: rgba(211, 47, 47, 0.1);
    color: var(--admin-danger);
}

.btn--danger:hover {
    background: rgba(211, 47, 47, 0.18);
}

.btn--full {
    width: 100%;
}

.admin-header {
    background: #0b1f3a;
    color: #fff;
    padding: 1.2rem 0;
    box-shadow: var(--admin-shadow);
}

.admin-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.admin-brand {
    display: flex;
    flex-direction: column;
}

.admin-brand__title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.admin-brand__subtitle {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
}

.admin-nav ul {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0;
    margin: 0;
    list-style: none;
}

.admin-nav a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
}

.admin-nav li.is-active a,
.admin-nav a:hover {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
}

.admin-user {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.admin-user__name {
    font-weight: 600;
}

.admin-main {
    padding: 2rem 0 3rem;
    display: block;
}

.admin-section {
    background: var(--admin-surface);
    border-radius: var(--admin-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--admin-shadow);
}

.admin-section__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.admin-section__title {
    margin: 0 0 0.5rem;
    font-size: 1.6rem;
}

.admin-section__subtitle {
    margin-top: 0;
    font-size: 1.25rem;
    color: var(--admin-muted);
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.admin-stat {
    background: rgba(31, 111, 235, 0.08);
    border-radius: var(--admin-radius);
    padding: 1.2rem;
    text-align: center;
}

.admin-stat__label {
    display: block;
    font-size: 0.9rem;
    color: var(--admin-muted);
    margin-bottom: 0.4rem;
}

.admin-stat__value {
    font-size: 1.8rem;
    font-weight: 700;
}

.admin-card-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
}

.admin-card {
    background: #fff;
    border-radius: var(--admin-radius);
    padding: 1.4rem;
    box-shadow: inset 0 0 0 1px var(--admin-border);
}

.admin-card__description {
    margin: 0.2rem 0 1.2rem;
    color: var(--admin-muted);
    font-size: 0.95rem;
}

.admin-card__meta {
    font-size: 0.85rem;
    color: var(--admin-muted);
}

.admin-card__actions {
    display: flex;
    gap: 0.6rem;
    margin-top: 1.2rem;
}

.admin-table-wrapper {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.admin-table th,
.admin-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--admin-border);
    vertical-align: top;
}

.admin-table thead th {
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--admin-muted);
}

.admin-table__order {
    width: 96px;
    text-align: center;
}

.admin-table__order-input {
    width: 80px;
    max-width: 100%;
    padding: 0.45rem 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--admin-border);
    background: #fdfdff;
    font: inherit;
    text-align: center;
}

.admin-table__actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.admin-table__actions form {
    display: inline;
}

.admin-form--table .form-actions {
    justify-content: flex-end;
}

.admin-form {
    display: grid;
    gap: 1.2rem;
}

.admin-form--two-columns {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.admin-form--two-columns .form-group--full {
    grid-column: 1 / -1;
}

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

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.2rem;
}

.form-grid .form-group--full {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.65rem 0.75rem;
    border-radius: 10px;
    border: 1px solid var(--admin-border);
    background: #fdfdff;
    font: inherit;
    color: inherit;
}

.form-group textarea {
    resize: vertical;
}

.form-help {
    margin-top: 0.35rem;
    font-size: 0.85rem;
    color: var(--admin-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.8rem;
    grid-column: 1 / -1;
}

.admin-flash {
    display: grid;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.admin-flash__item {
    padding: 0.75rem 1rem;
    border-radius: var(--admin-radius);
    font-weight: 600;
}

.admin-flash__item--success {
    background: rgba(46, 204, 113, 0.15);
    color: #1e7c4a;
}

.admin-flash__item--error {
    background: rgba(211, 47, 47, 0.15);
    color: var(--admin-danger);
}

.admin-footer {
    padding: 1.5rem 0 2rem;
    text-align: center;
    color: var(--admin-muted);
    font-size: 0.9rem;
}

.admin-footer__link {
    margin-left: 1rem;
}

.admin-login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(circle at top, rgba(31, 111, 235, 0.15), transparent 55%), var(--admin-bg);
}

.admin-login {
    background: var(--admin-surface);
    padding: 2.4rem;
    border-radius: var(--admin-radius);
    width: min(420px, calc(100% - 40px));
    box-shadow: var(--admin-shadow);
}

.admin-login h1 {
    margin-top: 0;
    margin-bottom: 1.2rem;
    font-size: 1.6rem;
    text-align: center;
}

.admin-login__back {
    display: block;
    text-align: center;
    margin-top: 1.5rem;
    font-weight: 500;
}

.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

@media (max-width: 840px) {
    .admin-header__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-nav ul {
        flex-wrap: wrap;
    }

    .form-actions {
        justify-content: stretch;
    }

    .form-actions .btn {
        flex: 1;
    }
}