:root {
    --bg: #0b0f16;
    --bg-soft: #111725;
    --card: #151d2c;
    --border: #222d42;
    --text: #e6edf3;
    --muted: #8b98ad;
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --ok: #22c55e;
    --warn: #f59e0b;
    --danger: #ef4444;
    --radius: 12px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Roboto, sans-serif;
    font-size: 14px;
}

a { color: var(--primary); text-decoration: none; }
h1 { font-size: 22px; margin: 0; }
h2 { font-size: 20px; margin: 0 0 4px; }
h3 { font-size: 16px; margin: 0; }
p { margin: 6px 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.tiny { font-size: 11px; }
.center { text-align: center; }
.mono { font-family: Menlo, Consolas, "Courier New", monospace; }
.hidden { display: none !important; }
.spacer { flex: 1; }

.page-center {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: radial-gradient(1000px 500px at 50% -10%, #16233a 0%, var(--bg) 60%);
}

/* ---------- 品牌 ---------- */
.brand { display: flex; align-items: center; gap: 12px; }
.brand.small { gap: 8px; }
.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    font-weight: 700;
    font-family: Menlo, Consolas, monospace;
}
.brand.small .brand-mark { width: 28px; height: 28px; font-size: 12px; border-radius: 8px; }

/* ---------- 登录/注册 ---------- */
.auth-card, .install-card {
    width: 100%;
    max-width: 440px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
}
.install-card { max-width: 620px; }
.install-body { margin-top: 16px; }

.tabs {
    display: flex;
    gap: 4px;
    margin: 20px 0 16px;
    background: var(--bg-soft);
    padding: 4px;
    border-radius: 10px;
}
.tab {
    flex: 1;
    padding: 8px 12px;
    border: 0;
    background: transparent;
    color: var(--muted);
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}
.tab.active { background: var(--primary); color: #fff; }

.form { display: flex; flex-direction: column; gap: 12px; }
.form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.form input, .form select, .form textarea, .inline input {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text);
    font-size: 14px;
    outline: none;
}
.form input:focus, .form textarea:focus, .form select:focus { border-color: var(--primary); }
.form textarea { font-family: Menlo, Consolas, monospace; font-size: 12px; resize: vertical; }
.form .row { display: flex; gap: 12px; }
.form .row > label { flex: 1; }
.form .row.three > label { flex: 1; }
@media (max-width: 560px) { .form .row, .form .row.three { flex-direction: column; } }

.btn {
    padding: 9px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-soft);
    color: var(--text);
    cursor: pointer;
    font-size: 14px;
    transition: .15s;
}
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger { color: #fff; background: var(--danger); border-color: var(--danger); }
.btn.ghost { background: transparent; }
.btn.block { width: 100%; }
.btn.sm { padding: 6px 10px; font-size: 13px; }
.btn:disabled { opacity: .6; cursor: not-allowed; }

.alert {
    padding: 10px 12px;
    border-radius: 10px;
    background: rgba(239, 68, 68, .12);
    border: 1px solid rgba(239, 68, 68, .4);
    color: #fca5a5;
    font-size: 13px;
    margin: 12px 0;
}
.alert.success { background: rgba(34, 197, 94, .12); border-color: rgba(34, 197, 94, .4); color: #86efac; }
.ok { color: var(--ok); }
.bad { color: var(--danger); }

/* ---------- 安装向导 ---------- */
.checks { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 13px; }
.checks td { padding: 6px 8px; border-bottom: 1px solid var(--border); }
.checks .muted { font-size: 12px; }
fieldset {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 14px 16px 16px;
    margin: 0;
}
legend { padding: 0 6px; color: var(--muted); font-size: 13px; }
.steps { font-size: 13px; line-height: 1.8; padding-left: 20px; }
.log {
    max-height: 180px;
    overflow: auto;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    font-size: 12px;
}
.checkbox { flex-direction: row !important; align-items: center; gap: 8px !important; }
.checkbox input { width: auto !important; }

/* ---------- 顶栏 ---------- */
.topbar {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 20;
}

.container { max-width: 1180px; margin: 0 auto; padding: 24px 18px 60px; }
.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 20px; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: .15s;
}
.card:hover { border-color: #33456b; transform: translateY(-2px); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.card .host { word-break: break-all; font-size: 13px; }
.tag {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(59, 130, 246, .15);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, .35);
}
.card-foot { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.last-used { margin-top: auto; }

.empty {
    border: 1px dashed var(--border);
    border-radius: var(--radius);
    padding: 48px 16px;
    text-align: center;
    color: var(--muted);
}

/* ---------- 弹窗 ---------- */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    padding: 20px;
}
.modal-box {
    width: 100%;
    max-width: 620px;
    max-height: 90vh;
    overflow: auto;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
}
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.modal-box .form { gap: 14px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

/* ---------- 提示条 ---------- */
.toast {
    position: fixed;
    left: 50%;
    bottom: 28px;
    transform: translateX(-50%) translateY(20px);
    background: var(--card);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 16px;
    border-radius: 10px;
    opacity: 0;
    pointer-events: none;
    transition: .2s;
    z-index: 100;
    max-width: 90vw;
    word-break: break-all;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { border-color: rgba(34, 197, 94, .5); }
.toast.error { border-color: rgba(239, 68, 68, .5); }

/* ---------- 终端页 ---------- */
.terminal-page { height: 100%; display: flex; flex-direction: column; }
.terminal-page main {
    flex: 1;
    min-height: 0;
    padding: 8px 10px 10px;
    background: #0d1117;
}
#terminal { height: 100%; }
.badge {
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid var(--border);
}
.badge.ok { color: #86efac; border-color: rgba(34, 197, 94, .5); background: rgba(34, 197, 94, .1); }
.badge.connecting { color: #fcd34d; border-color: rgba(245, 158, 11, .5); background: rgba(245, 158, 11, .1); }
.badge.error { color: #fca5a5; border-color: rgba(239, 68, 68, .5); background: rgba(239, 68, 68, .1); }

.drawer {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 380px;
    max-width: 92vw;
    background: var(--card);
    border-left: 1px solid var(--border);
    padding: 18px;
    overflow: auto;
    z-index: 40;
    box-shadow: -20px 0 50px rgba(0, 0, 0, .4);
}
.drawer-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.drawer label.block { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.inline { display: flex; gap: 8px; }
.inline input { flex: 1; }
.dropzone {
    margin: 14px 0;
    padding: 22px 12px;
    border: 1px dashed var(--border);
    border-radius: 12px;
    text-align: center;
    color: var(--muted);
}
.dropzone.over { border-color: var(--primary); background: rgba(59, 130, 246, .08); }
.upload-log {
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 12px;
    font-family: Menlo, Consolas, monospace;
}
.upload-log li { padding: 4px 0; border-bottom: 1px solid var(--border); word-break: break-all; }
.upload-log li.ok { color: #86efac; }
.upload-log li.error { color: #fca5a5; }
.upload-log li.info { color: var(--muted); }