:root {
    --ink: #201515;
    --orange: #ff4f00;
    --canvas: #fffefb;
    --parchment: #f8f4f0;
    --line: #eceae3;
    --stone: #605d52;
    --sidebar: #201515;
    --radius: 12px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Segoe UI", system-ui, sans-serif; background: var(--parchment); color: #1f2937; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; }
.menu-btn {
    display: none; position: fixed; top: 14px; left: 14px; z-index: 30;
    width: 42px; height: 42px; border: 0; border-radius: 10px; background: var(--ink); color: #fff;
}
.backdrop { display: none; }
.shell { display: flex; min-height: 100vh; }
.sidebar {
    width: 260px; background: var(--sidebar); color: #fff; position: fixed; inset: 0 auto 0 0;
    display: flex; flex-direction: column; z-index: 20;
}
.brand { display: flex; gap: 10px; align-items: center; padding: 22px 20px; border-bottom: 1px solid rgba(255,255,255,.1); }
.brand .mark { width: 28px; height: 28px; border-radius: 8px; background: var(--orange); }
.brand strong { display: block; font-size: 1.05rem; }
.brand small { color: rgba(255,255,255,.5); font-size: .75rem; }
.sidebar nav { flex: 1; padding: 12px 0; }
.nav { display: flex; gap: 10px; align-items: center; padding: 10px 20px; color: rgba(255,255,255,.82); }
.nav i { width: 18px; color: var(--orange); }
.nav.is-on, .nav:hover { background: rgba(255,255,255,.08); color: #fff; }
.nav-gap { height: 16px; border-top: 1px solid rgba(255,255,255,.08); margin: 8px 16px; }
.who { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.7); display: flex; gap: 8px; align-items: center; }
.main { margin-left: 260px; flex: 1; padding: 28px 32px 64px; }
.top h1 { margin: 0; font-size: 1.6rem; color: var(--ink); }
.top p { margin: 6px 0 0; color: var(--stone); }
.flash { margin: 18px 0; padding: 12px 14px; border-radius: 10px; }
.flash-success { background: #ecfdf3; color: #166534; }
.flash-error { background: #fef2f2; color: #991b1b; }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; margin: 18px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.tile { display: flex; gap: 14px; align-items: flex-start; padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: #fff; }
.tile:hover { border-color: #d7d3c8; }
.tile i { color: var(--orange); margin-top: 2px; }
.tile h3 { margin: 0 0 4px; font-size: 1rem; }
.tile p { margin: 0; color: var(--stone); font-size: .9rem; }
label { display: block; font-size: .85rem; font-weight: 600; margin: 0 0 6px; }
.field { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-bottom: 14px; background: var(--canvas); }
textarea.field { min-height: 110px; resize: vertical; }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.btn { display: inline-flex; align-items: center; gap: 8px; border: 0; border-radius: 10px; padding: 10px 16px; font-weight: 600; cursor: pointer; }
.btn-primary { background: var(--orange); color: #fff; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-ghost { background: #fff; border: 1px solid var(--line); }
.btn-danger { background: #991b1b; color: #fff; }
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th, .table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
.table th { color: var(--stone); font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; }
.muted { color: var(--stone); font-size: .9rem; }
.login-page { min-height: 100vh; display: grid; place-items: center; background: var(--parchment); padding: 24px; }
.login-box { width: min(100%, 420px); background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 32px; }
.login-box h1 { margin: 0 0 6px; }
.login-box .sub { color: var(--stone); margin-bottom: 22px; }
.help { font-size: .85rem; color: var(--stone); text-align: center; margin-top: 16px; }
.card h3 { margin: 0 0 12px; }
.card label + input[type="checkbox"] { margin-right: 6px; }
.card label:has(input[type="checkbox"]) { font-weight: 500; margin-bottom: 10px; }
.seo-nav { margin: 20px 0 8px; }
.seo-nav-label {
    margin: 0 0 10px;
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--stone);
}
.seo-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}
.seo-tab {
    display: flex;
    align-items: center;
    gap: 12px;
    min-height: 72px;
    padding: 12px 14px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #fff;
    color: var(--ink);
    box-shadow: 0 1px 0 rgba(32, 21, 21, .03);
    transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.seo-tab:hover {
    border-color: #d7d3c8;
    box-shadow: 0 6px 18px rgba(32, 21, 21, .06);
}
.seo-tab-num {
    flex: 0 0 22px;
    height: 22px;
    border-radius: 999px;
    display: grid;
    place-items: center;
    font-size: .7rem;
    font-weight: 700;
    color: var(--stone);
    background: var(--parchment);
}
.seo-tab-icon {
    flex: 0 0 36px;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: #fff4ee;
    color: var(--orange);
}
.seo-tab-icon i { color: inherit; font-size: .95rem; }
.seo-tab-copy { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.seo-tab-copy strong { font-size: .92rem; line-height: 1.2; }
.seo-tab-copy small { color: var(--stone); font-size: .75rem; font-weight: 500; }
.seo-tab.is-on {
    border-color: var(--orange);
    background: #fff7f3;
    box-shadow: 0 0 0 3px rgba(255, 79, 0, .12);
}
.seo-tab.is-on .seo-tab-num {
    background: var(--orange);
    color: #fff;
}
.seo-tab.is-on .seo-tab-icon {
    background: var(--orange);
    color: #fff;
}
@media (max-width: 1100px) {
    .seo-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.bot-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin-bottom: 16px; }
.bot-card { border: 1px solid var(--line); border-radius: 10px; padding: 12px; background: var(--canvas); }
.bot-card strong { display: block; margin-bottom: 8px; }
.bot-card .field { margin-bottom: 0; }
.code-field { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .85rem; }
.code-preview { background: var(--parchment); border: 1px solid var(--line); border-radius: 8px; padding: 12px; overflow: auto; font-size: .82rem; }
.check-line { display: flex; gap: 8px; align-items: center; font-weight: 500; margin: 8px 0 14px; }
.check-line input { margin: 0; }
.faq-row { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; align-items: start; margin-bottom: 10px; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; }
.row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
@media (max-width: 860px) {
    .menu-btn { display: block; }
    .backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 15; }
    body.nav-open .backdrop { display: block; }
    .sidebar { transform: translateX(-100%); transition: transform .2s ease; }
    body.nav-open .sidebar { transform: none; }
    .main { margin-left: 0; padding: 64px 16px 40px; }
    .row-2 { grid-template-columns: 1fr; }
    .row-3 { grid-template-columns: 1fr; }
    .faq-row { grid-template-columns: 1fr; }
    .seo-tabs { grid-template-columns: 1fr; }
    .card { overflow-x: auto; }
    .table { min-width: 520px; }
}