:root {
    --ink: #14211d;
    --muted: #6d7873;
    --paper: #f3f1e9;
    --panel: #fffdf8;
    --line: #ddd9cc;
    --green: #1f8a62;
    --green-dark: #126246;
    --lime: #d9ff66;
    --red: #c8473a;
    --shadow: 0 12px 30px rgba(29, 45, 38, .07);
}

* { box-sizing: border-box; }
html { background: var(--paper); color: var(--ink); font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif; }
body { margin: 0; min-height: 100vh; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.sidebar {
    align-items: stretch;
    background: #13251f;
    color: #f9f7ef;
    display: flex;
    flex-direction: column;
    height: 100vh;
    left: 0;
    padding: 28px 20px 20px;
    position: fixed;
    top: 0;
    width: 236px;
}
.brand { align-items: center; display: flex; gap: 13px; padding: 0 8px 30px; }
.brand-mark {
    align-items: center;
    background: var(--lime);
    border-radius: 12px;
    color: #13251f;
    display: inline-flex;
    font-size: 24px;
    font-weight: 900;
    height: 42px;
    justify-content: center;
    width: 42px;
}
.brand-mark.large { height: 54px; width: 54px; }
.brand span:last-child { display: flex; flex-direction: column; }
.brand small { color: #9daf9f; font-size: 11px; letter-spacing: .14em; margin-top: 3px; text-transform: uppercase; }
.sidebar nav { display: grid; gap: 7px; }
.sidebar nav a { border-radius: 11px; color: #adbbb2; font-size: 14px; padding: 13px 15px; }
.sidebar nav a:hover, .sidebar nav a.active { background: #203a30; color: white; }
.sidebar nav a.active { box-shadow: inset 3px 0 var(--lime); }
.sidebar-foot { border-top: 1px solid #2c4138; color: #aebdb4; display: flex; font-size: 13px; justify-content: space-between; margin-top: auto; padding: 18px 8px 4px; }
.link-button { background: transparent; border: 0; color: #d8e1db; padding: 0; }

.main { margin-left: 236px; padding: 32px 38px 60px; }
.topbar { align-items: flex-end; display: flex; justify-content: space-between; margin-bottom: 28px; }
.topbar h1 { font-family: Georgia, "Noto Serif SC", serif; font-size: 34px; letter-spacing: -.02em; margin: 3px 0 0; }
.eyebrow { color: var(--green); font-size: 10px; font-weight: 800; letter-spacing: .18em; margin: 0; text-transform: uppercase; }
.live-dot { color: var(--green-dark); font-size: 12px; }
.live-dot::before { background: #34c38f; border-radius: 50%; box-shadow: 0 0 0 5px rgba(52,195,143,.12); content: ""; display: inline-block; height: 7px; margin-right: 9px; width: 7px; }

.stat-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); margin-bottom: 20px; }
.stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); padding: 24px; }
.stat-card.accent { background: var(--lime); border-color: #c8ed5c; }
.stat-card span, .stat-card small { color: var(--muted); display: block; font-size: 12px; }
.stat-card strong { display: block; font-family: Georgia, serif; font-size: 42px; font-weight: 500; margin: 12px 0 9px; }
.content-grid { display: grid; gap: 20px; grid-template-columns: minmax(0, 1.7fr) minmax(260px, .8fr); }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; }
.panel-head { align-items: center; display: flex; justify-content: space-between; padding: 22px 24px; }
.panel-head h2 { font-family: Georgia, "Noto Serif SC", serif; font-size: 20px; margin: 5px 0 0; }
.text-link { color: var(--green-dark); font-size: 13px; font-weight: 700; }
.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; min-width: 680px; width: 100%; }
th { color: #89918d; font-size: 10px; letter-spacing: .12em; padding: 11px 20px; text-align: left; text-transform: uppercase; }
td { border-top: 1px solid #e8e4da; font-size: 13px; padding: 15px 20px; vertical-align: middle; }
td b, td small { display: block; }
td small { color: #8b9590; font-size: 10px; margin-top: 4px; }
.empty { color: var(--muted); padding: 36px !important; text-align: center; }
.platform-list { display: grid; padding: 2px 22px 20px; }
.platform-list > div { align-items: center; border-top: 1px solid #e8e4da; display: grid; gap: 12px; grid-template-columns: 40px 1fr auto; padding: 17px 0; }
.platform-icon { align-items: center; background: #e7f1e9; border-radius: 50%; display: flex; font-size: 11px; font-weight: 800; height: 36px; justify-content: center; width: 36px; }
.platform-list b, .platform-list small { display: block; font-size: 13px; }
.platform-list small { color: var(--muted); font-size: 10px; margin-top: 3px; }

.filter { align-items: center; display: flex; gap: 8px; }
input, select, textarea {
    background: #fff;
    border: 1px solid #d7d3c8;
    border-radius: 9px;
    color: var(--ink);
    outline: none;
    padding: 10px 12px;
}
input:focus, select:focus, textarea:focus { border-color: var(--green); box-shadow: 0 0 0 3px rgba(31,138,98,.1); }
.filter input { min-width: 240px; }
.button {
    background: #fff;
    border: 1px solid #d4d1c6;
    border-radius: 9px;
    color: var(--ink);
    display: inline-flex;
    font-size: 13px;
    font-weight: 700;
    justify-content: center;
    padding: 10px 15px;
}
.button.primary { background: var(--green); border-color: var(--green); color: white; }
.button.dark { background: var(--ink); border-color: var(--ink); color: white; }
.button.wide { width: 100%; }
.tag, .status { background: #ecebe5; border-radius: 999px; display: inline-flex; font-size: 10px; font-weight: 800; padding: 5px 9px; text-transform: uppercase; }
.status { border: 0; }
.status.ok { background: #dff5e9; color: #17734e; }
.status.off { background: #f8e2df; color: var(--red); }
.pagination { align-items: center; border-top: 1px solid #e8e4da; color: var(--muted); display: flex; font-size: 12px; gap: 18px; justify-content: flex-end; padding: 17px 22px; }
.pagination a { color: var(--green-dark); font-weight: 700; }
.mini-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 18px; }
.mini-stats div { background: var(--panel); border: 1px solid var(--line); border-radius: 11px; min-width: 115px; padding: 12px 15px; }
.mini-stats span { color: var(--muted); display: block; font-size: 10px; text-transform: uppercase; }
.mini-stats strong { display: block; font-size: 20px; margin-top: 5px; }

.page-actions { align-items: center; display: flex; justify-content: space-between; margin-bottom: 18px; }
.muted { color: var(--muted); font-size: 12px; line-height: 1.6; }
.level-grid { display: grid; gap: 18px; grid-template-columns: repeat(3, minmax(230px, 1fr)); }
.level-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); overflow: hidden; padding: 22px; position: relative; }
.level-number { color: #ece9df; font-family: Georgia, serif; font-size: 82px; line-height: 1; position: absolute; right: 13px; top: 10px; z-index: 0; }
.level-card > *:not(.level-number) { position: relative; z-index: 1; }
.level-card-head { align-items: center; display: flex; justify-content: space-between; }
.level-card h2 { font-family: Georgia, "Noto Serif SC", serif; font-size: 23px; margin: 35px 0 7px; }
.level-card p { color: var(--muted); font-size: 12px; min-height: 34px; }
.level-card dl { border-bottom: 1px solid #e6e2d8; border-top: 1px solid #e6e2d8; display: grid; gap: 10px; grid-template-columns: repeat(3, 1fr); margin: 18px 0; padding: 14px 0; }
.level-card dt { color: var(--muted); font-size: 9px; text-transform: uppercase; }
.level-card dd { font-size: 11px; font-weight: 700; margin: 4px 0 0; }
.level-actions { display: flex; gap: 8px; justify-content: flex-end; }
.level-actions form { margin: 0; }

.level-form { display: grid; gap: 18px; }
.form-section { overflow: visible; padding-bottom: 24px; }
.form-grid { display: grid; gap: 17px; grid-template-columns: repeat(2, 1fr); padding: 0 24px; }
label { color: #59645f; display: grid; font-size: 11px; font-weight: 700; gap: 7px; }
.span-2 { grid-column: span 2; }
textarea { line-height: 1.55; resize: vertical; width: 100%; }
textarea.code { font-family: Consolas, "SFMono-Regular", monospace; font-size: 11px; }
.form-section > label, .form-section > .muted { margin: 0 24px; }
.sticky-actions { align-items: center; background: rgba(243,241,233,.92); bottom: 0; display: flex; gap: 10px; justify-content: flex-end; padding: 12px 0; position: sticky; z-index: 5; }
.generate-form { margin-top: 12px; text-align: right; }
.alert { border-radius: 10px; font-size: 13px; margin-bottom: 16px; padding: 12px 15px; }
.alert.error { background: #fae5e1; color: #9e3028; }

.login-body { background: #13251f; }
.login-shell { display: grid; grid-template-columns: 1.15fr .85fr; min-height: 100vh; }
.login-art { background: var(--lime); display: flex; flex-direction: column; justify-content: space-between; min-height: 100vh; overflow: hidden; padding: 56px; position: relative; }
.art-grid { background-image: linear-gradient(rgba(19,37,31,.09) 1px, transparent 1px), linear-gradient(90deg, rgba(19,37,31,.09) 1px, transparent 1px); background-size: 38px 38px; inset: 0; position: absolute; }
.art-arrow { align-self: flex-end; color: rgba(19,37,31,.12); font-family: Georgia, serif; font-size: 46vw; line-height: .7; position: relative; transform: translate(15%, -10%); }
.login-art > div:last-child { max-width: 620px; position: relative; }
.login-art h1 { font-family: Georgia, "Noto Serif SC", serif; font-size: clamp(38px, 4.4vw, 72px); font-weight: 500; letter-spacing: -.04em; line-height: 1.06; margin: 12px 0 25px; }
.login-art p:last-child { line-height: 1.8; max-width: 500px; }
.login-panel { align-items: center; display: flex; justify-content: center; padding: 36px; }
.login-card { background: var(--panel); border-radius: 22px; box-shadow: 0 24px 70px rgba(0,0,0,.25); display: grid; gap: 17px; max-width: 420px; padding: 42px; width: 100%; }
.login-card .eyebrow { margin-top: 12px; }
.login-card h2 { font-family: Georgia, "Noto Serif SC", serif; font-size: 34px; margin: -6px 0 -12px; }
.login-card .muted { margin: 0 0 5px; }

@media (max-width: 1050px) {
    .level-grid { grid-template-columns: repeat(2, 1fr); }
    .content-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
    .sidebar { height: auto; padding: 12px; position: static; width: 100%; }
    .sidebar .brand, .sidebar-foot { display: none; }
    .sidebar nav { display: flex; overflow-x: auto; }
    .sidebar nav a { white-space: nowrap; }
    .main { margin-left: 0; padding: 24px 16px 50px; }
    .stat-grid, .level-grid { grid-template-columns: 1fr; }
    .panel-head, .page-actions { align-items: stretch; flex-direction: column; gap: 14px; }
    .filter { align-items: stretch; flex-direction: column; }
    .filter input { min-width: 0; }
    .form-grid { grid-template-columns: 1fr; }
    .span-2 { grid-column: auto; }
    .login-shell { grid-template-columns: 1fr; }
    .login-art { display: none; }
    .login-panel { min-height: 100vh; padding: 18px; }
    .login-card { padding: 28px; }
}