:root {
    --bg: #f4f7f6;
    --panel: #ffffff;
    --ink: #17201d;
    --muted: #64716d;
    --line: #dbe5e1;
    --green: #0b8f61;
    --red: #d94635;
    --amber: #c98910;
    --sidebar: #111816;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.admin-body {
    min-height: 100vh;
}

.admin-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 248px;
    display: flex;
    flex-direction: column;
    padding: 24px;
    color: #dfe8e4;
    background: var(--sidebar);
}

.admin-brand {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 42px;
    font-size: 20px;
    font-weight: 800;
}

.admin-brand span {
    color: #36d38f;
}

.admin-menu {
    display: grid;
    gap: 8px;
    margin-top: 34px;
}

.admin-menu a,
.admin-side-foot a {
    padding: 11px 12px;
    border-radius: 8px;
    color: #c9d5d0;
}

.admin-menu a:hover,
.admin-side-foot a:hover {
    color: #fff;
    background: rgba(255, 255, 255, .08);
}

.admin-side-foot {
    display: grid;
    gap: 8px;
    margin-top: auto;
}

.admin-shell {
    min-height: 100vh;
    margin-left: 248px;
}

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 26px 34px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, .82);
    backdrop-filter: blur(14px);
}

.admin-topbar h1 {
    margin: 0;
    font-size: 28px;
    letter-spacing: 0;
}

.crumb {
    margin: 0 0 4px;
    color: var(--muted);
    font-size: 13px;
}

.admin-user,
.pill,
.status {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 700;
}

.admin-user,
.pill {
    color: var(--green);
    background: #e6f6ee;
}

.status.ok {
    color: #096442;
    background: #e6f6ee;
}

.status.off {
    color: #a62a1e;
    background: #ffe8e4;
}

.admin-content {
    padding: 30px 34px 48px;
}

.admin-content.narrow {
    max-width: 760px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.stat-card,
.panel,
.admin-login-card {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    box-shadow: 0 12px 28px rgba(23, 32, 29, .06);
}

.stat-card {
    padding: 20px;
}

.stat-card span {
    display: block;
    color: var(--muted);
}

.stat-card strong {
    display: block;
    margin-top: 8px;
    font-size: 34px;
    line-height: 1;
    color: var(--amber);
}

.panel {
    padding: 22px;
    margin-bottom: 18px;
}

.split-panel {
    max-width: 920px;
}

.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.panel-head.second {
    margin-top: 26px;
}

.panel-head h2 {
    margin: 0;
    font-size: 20px;
}

.panel-head a {
    color: var(--green);
    font-weight: 700;
}

.admin-form {
    display: grid;
    gap: 14px;
}

label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-weight: 700;
}

input,
textarea,
select {
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
    background: #fff;
    font: inherit;
}

textarea {
    resize: vertical;
}

.check-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.check-row input {
    width: auto;
    min-height: auto;
}

button {
    min-height: 44px;
    padding: 0 18px;
    border: 0;
    border-radius: 8px;
    color: #fff;
    background: var(--green);
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.link-danger {
    min-height: auto;
    padding: 0;
    color: var(--red);
    background: transparent;
}

.table-scroll {
    width: 100%;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 13px 12px;
    text-align: left;
    border-bottom: 1px solid var(--line);
    white-space: nowrap;
}

th {
    color: var(--muted);
    font-size: 13px;
}

.actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.actions a {
    color: var(--green);
    font-weight: 700;
}

.admin-flash {
    position: fixed;
    top: 18px;
    right: 18px;
    z-index: 40;
    max-width: 420px;
    padding: 12px 16px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(23, 32, 29, .15);
}

.admin-flash.ok {
    color: #075b3d;
    background: #e8f6ee;
}

.admin-flash.error {
    color: #9a1f16;
    background: #ffe8e4;
}

.admin-login-wrap {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 28px;
    background: linear-gradient(135deg, #f4f7f6 0%, #e7f2ed 54%, #f7f2e5 100%);
}

.admin-login-card {
    width: min(100%, 440px);
    padding: 30px;
}

.admin-brand.login {
    color: var(--ink);
}

.admin-login-card h1 {
    margin: 22px 0 6px;
    font-size: 30px;
}

.admin-login-card p {
    margin: 0 0 24px;
    color: var(--muted);
}

.admin-login-card button {
    width: 100%;
    margin-top: 6px;
}

.back-home {
    display: block;
    margin-top: 16px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 920px) {
    .admin-sidebar {
        position: static;
        width: auto;
    }

    .admin-shell {
        margin-left: 0;
    }

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

@media (max-width: 560px) {
    .admin-content,
    .admin-topbar {
        padding-left: 18px;
        padding-right: 18px;
    }

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