:root {
    --ink: #102337;
    --blue: #155a8a;
    --green: #17a37b;
    --orange: #f59b4a;
    --muted: #687789;
    --line: #d9e4ea;
    --bg: #f4f7fa;
    --white: #ffffff;
}

* {
    box-sizing: border-box;
}

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

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

button,
input,
select,
textarea {
    font: inherit;
}

.admin-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 236px minmax(0, 1fr);
}

.admin-sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    padding: 22px;
    color: #dce8ef;
    background: #102337;
}

.admin-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 34px;
}

.admin-brand span,
.login-logo {
    width: 42px;
    height: 42px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    color: #fff;
    font-weight: 900;
    background: linear-gradient(135deg, var(--blue), var(--green));
}

.admin-sidebar nav {
    display: grid;
    gap: 8px;
}

.admin-sidebar nav a {
    padding: 12px 14px;
    border-radius: 8px;
    color: #c7d5df;
}

.admin-sidebar nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, .08);
}

.admin-main {
    min-width: 0;
    padding: 24px;
}

.admin-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 20px;
}

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

.admin-topbar span {
    color: var(--muted);
}

.notice {
    margin-bottom: 16px;
    padding: 12px 14px;
    border-radius: 8px;
    font-weight: 700;
}

.notice.success {
    color: #11664e;
    background: #e9f8f2;
    border: 1px solid #bde8d8;
}

.notice.error {
    color: #8a1c1c;
    background: #fff0f0;
    border: 1px solid #ffd0d0;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-bottom: 18px;
}

.stat-card,
.panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(16, 35, 55, .06);
}

.stat-card {
    padding: 20px;
}

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

.stat-card strong {
    display: block;
    margin-top: 8px;
    color: var(--blue);
    font-size: 28px;
}

.panel {
    margin-bottom: 18px;
    padding: 20px;
}

.panel-head,
.editor-head,
.standalone,
.sticky-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.panel-head h2,
.editor-head h2,
.editor-head h3 {
    margin: 0;
}

.panel-head a {
    color: var(--green);
    font-weight: 800;
}

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

table {
    width: 100%;
    min-width: 980px;
    border-collapse: collapse;
}

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

th {
    color: #536477;
    font-size: 13px;
    background: #f8fbfd;
}

td small {
    color: var(--muted);
}

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

.order-note td {
    color: var(--muted);
    background: #fbfcfd;
    font-size: 13px;
}

.status {
    display: inline-flex;
    min-width: 72px;
    justify-content: center;
    padding: 4px 8px;
    border-radius: 8px;
    font-weight: 800;
    font-size: 12px;
}

.status.pending {
    color: #9a5a08;
    background: #fff0da;
}

.status.paid,
.status.processing,
.status.completed {
    color: #11664e;
    background: #e9f8f2;
}

.status.cancelled {
    color: #7d8790;
    background: #eef2f4;
}

.inline-form {
    display: flex;
    gap: 8px;
}

input,
select,
textarea {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px 11px;
    color: var(--ink);
    background: #fff;
}

textarea {
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    outline: 2px solid rgba(23, 163, 123, .18);
    border-color: var(--green);
}

button,
.btn-primary,
.btn-lite {
    min-height: 40px;
    border: 0;
    border-radius: 8px;
    padding: 9px 15px;
    font-weight: 800;
    cursor: pointer;
}

button,
.btn-primary {
    color: #fff;
    background: var(--green);
}

.btn-lite {
    color: var(--blue);
    background: #edf6fb;
}

.danger-link {
    margin-top: 12px;
    color: #9a2f2f;
    background: #fff0f0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.admin-grid label {
    display: grid;
    gap: 7px;
}

.admin-grid label span {
    color: #415265;
    font-weight: 800;
}

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

.package-editor,
.payment-editor {
    display: grid;
    gap: 16px;
}

.switch {
    display: inline-flex !important;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    font-weight: 800;
}

.switch input {
    width: 18px;
    height: 18px;
}

.qr-preview {
    display: flex;
    align-items: end;
}

.qr-preview img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border: 1px solid var(--line);
    border-radius: 8px;
}

.integration-help {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    color: #415265;
    background: #f8fbfd;
}

.integration-help p {
    margin: 8px 0 0;
    color: var(--muted);
}

.sticky-actions {
    position: sticky;
    bottom: 0;
    margin-top: 16px;
    padding: 14px 0;
    justify-content: flex-end;
    background: linear-gradient(180deg, rgba(244, 247, 250, 0), var(--bg) 38%);
}

.login-body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
    background: linear-gradient(135deg, #eef5f1, #f7fbff);
}

.login-card {
    width: min(420px, 100%);
    padding: 34px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(16, 35, 55, .13);
}

.login-card h1 {
    margin: 18px 0 6px;
}

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

.login-card label {
    display: grid;
    gap: 8px;
    margin-bottom: 15px;
    color: #415265;
    font-weight: 800;
}

.login-card button {
    width: 100%;
    min-height: 46px;
    margin-top: 8px;
}

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

    .admin-sidebar {
        position: static;
        height: auto;
    }

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

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

@media (max-width: 560px) {
    .admin-main {
        padding: 16px;
    }

    .admin-topbar,
    .panel-head,
    .editor-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .admin-sidebar nav {
        grid-template-columns: 1fr;
    }
}