/* =============================================================
   GM Console - Professional dark dashboard
   ============================================================= */
:root {
    --bg-0: #0a0d14;
    --bg-1: #11151f;
    --bg-2: #161b27;
    --bg-3: #1d2330;
    --line: rgba(255, 255, 255, .07);
    --line-strong: rgba(255, 255, 255, .14);
    --ink-1: #ecf0f6;
    --ink-2: #b6bccb;
    --ink-3: #7e8698;
    --ink-4: #525a6c;
    --brand: #5b8cff;
    --brand-2: #7c5cff;
    --brand-soft: rgba(91, 140, 255, .12);
    --ok: #4ecd84;
    --warn: #f0a857;
    --err: #ff5d6c;
    --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --mono: "JetBrains Mono", "Fira Code", "SF Mono", Menlo, Consolas, monospace;
    --shadow: 0 14px 40px -10px rgba(0, 0, 0, .55);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg-0); color: var(--ink-1); font-family: var(--sans); font-size: 14px; line-height: 1.55; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: #8fb4ff; }
button { font-family: inherit; cursor: pointer; }
code, .mono { font-family: var(--mono); font-size: 12.5px; }

/* ============ Login screen ============ */
.login-screen {
    min-height: 100vh; display: grid; place-items: center; padding: 24px;
    background:
        radial-gradient(ellipse at 20% 30%, rgba(91, 140, 255, .12), transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(124, 92, 255, .12), transparent 55%),
        var(--bg-0);
}
.login-card {
    width: 100%; max-width: 420px; padding: 40px 36px;
    background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--line); border-radius: 14px;
    box-shadow: var(--shadow);
}
.login-card .logo {
    display: flex; align-items: center; gap: 14px; margin-bottom: 30px;
}
.login-card .logo .mark {
    width: 44px; height: 44px; border-radius: 10px;
    background: linear-gradient(135deg, var(--brand) 0%, var(--brand-2) 100%);
    display: grid; place-items: center; font-weight: 800; font-size: 18px; color: #fff;
    box-shadow: 0 0 20px rgba(91, 140, 255, .35);
}
.login-card h1 { margin: 0; font-size: 18px; letter-spacing: 1px; }
.login-card .logo small { color: var(--ink-3); font-size: 11px; letter-spacing: 3px; }
.login-card .lead { color: var(--ink-3); font-size: 13px; margin: 0 0 22px; }
.login-card .lang-switch { margin-left: auto; }

/* ============ App shell ============ */
.app {
    display: grid; grid-template-columns: 240px 1fr; min-height: 100vh;
}
.sidebar {
    background: #07090f; border-right: 1px solid var(--line);
    display: flex; flex-direction: column;
    position: sticky; top: 0; height: 100vh; overflow: hidden;
}
.sidebar .logo {
    display: flex; align-items: center; gap: 12px;
    padding: 20px 22px; border-bottom: 1px solid var(--line);
}
.sidebar .logo .mark {
    width: 36px; height: 36px; border-radius: 8px;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    display: grid; place-items: center; font-weight: 800; color: #fff; font-size: 16px;
}
.sidebar .logo b { font-size: 14px; letter-spacing: 1px; display: block; line-height: 1.2; }
.sidebar .logo small { color: var(--ink-3); font-size: 10px; letter-spacing: 3px; }

.nav { flex: 1; padding: 14px 10px; overflow-y: auto; }
.nav-sec { font-size: 10px; letter-spacing: 3px; color: var(--ink-4); padding: 16px 12px 8px; text-transform: uppercase; }
.nav a {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 14px; border-radius: 8px; color: var(--ink-2);
    font-size: 13.5px; margin: 1px 0;
}
.nav a:hover { background: rgba(255, 255, 255, .03); color: var(--ink-1); }
.nav a.active {
    background: linear-gradient(90deg, var(--brand-soft), transparent);
    color: var(--ink-1);
    box-shadow: inset 2px 0 0 var(--brand);
}
.nav a .ic { width: 16px; opacity: .85; }

.sidebar-foot {
    padding: 14px 22px; border-top: 1px solid var(--line);
    display: flex; align-items: center; justify-content: space-between;
    color: var(--ink-3); font-size: 12px;
}
.sidebar-foot form { margin: 0; }
.sidebar-foot button { background: transparent; border: 0; color: var(--err); font-size: 12px; padding: 4px 8px; }
.sidebar-foot button:hover { text-decoration: underline; }

/* ============ Main ============ */
.main { padding: 22px 28px 60px; }
.topbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 22px; gap: 16px;
}
.topbar h2 { margin: 0; font-size: 20px; letter-spacing: .5px; }
.topbar .eyebrow { font-size: 11px; color: var(--brand); letter-spacing: 3px; text-transform: uppercase; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.lang-switch {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 10px; border: 1px solid var(--line); border-radius: 999px;
    font-size: 12px; color: var(--ink-3);
}
.lang-switch .ls-btn { color: var(--ink-3); padding: 2px 6px; }
.lang-switch .ls-btn.active { color: var(--brand); }
.lang-switch .ls-sep { opacity: .35; }
.user-chip {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 5px 10px 5px 5px; border: 1px solid var(--line); border-radius: 999px;
    font-size: 12px; color: var(--ink-2);
}
.user-chip .avatar {
    width: 22px; height: 22px; border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--brand-2));
    display: grid; place-items: center; color: #fff; font-size: 11px; font-weight: 700;
}

/* ============ Flash ============ */
.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 13px; border: 1px solid; }
.flash-success { background: rgba(78, 205, 132, .08); color: var(--ok); border-color: rgba(78, 205, 132, .3); }
.flash-error   { background: rgba(255, 93, 108, .08); color: var(--err); border-color: rgba(255, 93, 108, .3); }
.flash-info    { background: rgba(91, 140, 255, .08); color: var(--brand); border-color: rgba(91, 140, 255, .3); }

/* ============ KPI cards ============ */
.kpi-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 22px;
}
.kpi {
    background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--line); border-radius: 12px;
    padding: 18px 20px; position: relative; overflow: hidden;
}
.kpi::before {
    content: ''; position: absolute; top: 0; left: 0; width: 3px; height: 100%;
    background: linear-gradient(180deg, var(--brand), var(--brand-2));
    opacity: .9;
}
.kpi .k { font-size: 11px; color: var(--ink-3); letter-spacing: 2px; text-transform: uppercase; }
.kpi .v { font-size: 26px; font-weight: 700; margin-top: 4px; letter-spacing: .5px; }
.kpi .v.err { color: var(--err); }
.kpi .v.ok  { color: var(--ok); }

/* ============ Panels ============ */
.panel {
    background: linear-gradient(180deg, var(--bg-2), var(--bg-1));
    border: 1px solid var(--line); border-radius: 12px;
    padding: 18px 22px; margin-bottom: 18px;
}
.panel h3 {
    margin: 0 0 14px; font-size: 14px; letter-spacing: 1.5px;
    color: var(--ink-2); display: flex; align-items: center; gap: 10px;
}
.panel h3::before {
    content: ''; width: 4px; height: 14px;
    background: linear-gradient(180deg, var(--brand), var(--brand-2));
    border-radius: 2px;
}

/* ============ Tables ============ */
.search-bar {
    display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap;
}
.search-bar input {
    flex: 1; min-width: 240px; padding: 10px 14px;
    background: var(--bg-3); border: 1px solid var(--line); border-radius: 8px;
    color: var(--ink-1); font-size: 13.5px; outline: none;
}
.search-bar input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }

.table-scroll { overflow-x: auto; margin: 0 -6px; padding: 0 6px; }
.dt {
    width: 100%; border-collapse: collapse; font-size: 13px;
}
.dt th {
    text-align: left; padding: 10px 12px;
    color: var(--ink-3); font-weight: 500; font-size: 11.5px; letter-spacing: 1px; text-transform: uppercase;
    background: rgba(255, 255, 255, .02); border-bottom: 1px solid var(--line);
    position: sticky; top: 0;
}
.dt td {
    padding: 11px 12px; border-bottom: 1px solid var(--line);
    color: var(--ink-1); vertical-align: middle;
}
.dt tr:hover td { background: rgba(91, 140, 255, .04); }
.dt td.empty { text-align: center; color: var(--ink-4); padding: 32px 12px; }

.badge {
    display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: 11.5px; letter-spacing: .5px;
    border: 1px solid transparent;
}
.badge.ok   { background: rgba(78, 205, 132, .12); color: var(--ok);   border-color: rgba(78, 205, 132, .25); }
.badge.warn { background: rgba(240, 168, 87, .12); color: var(--warn); border-color: rgba(240, 168, 87, .25); }
.badge.err  { background: rgba(255, 93, 108, .12); color: var(--err);  border-color: rgba(255, 93, 108, .25); }
.badge.muted{ background: rgba(255, 255, 255, .04); color: var(--ink-3); border-color: var(--line); }

/* ============ Buttons & forms ============ */
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 12px; color: var(--ink-3); letter-spacing: .5px; }
.field input {
    padding: 11px 13px; background: var(--bg-3); border: 1px solid var(--line); border-radius: 8px;
    color: var(--ink-1); font-size: 14px; outline: none;
}
.field input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-soft); }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 10px 18px; border: 0; border-radius: 8px; font-size: 13.5px; font-weight: 600;
    transition: transform .15s, box-shadow .25s, filter .25s; letter-spacing: .5px;
}
.btn-primary {
    background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff;
    box-shadow: 0 8px 22px -6px rgba(91, 140, 255, .55);
}
.btn-primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
.btn-ghost {
    background: transparent; color: var(--ink-2); border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn-block { width: 100%; }

.kv-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.kv-table th {
    text-align: left; padding: 9px 10px; color: var(--ink-3); font-weight: 500;
    width: 220px; border-bottom: 1px solid var(--line);
}
.kv-table td { padding: 9px 10px; border-bottom: 1px solid var(--line); }

.muted { color: var(--ink-4); }

/* ============ Responsive ============ */
@media (max-width: 960px) {
    .app { grid-template-columns: 1fr; }
    .sidebar {
        position: relative; height: auto; flex-direction: row;
        overflow-x: auto; overflow-y: hidden;
        border-right: 0; border-bottom: 1px solid var(--line);
    }
    .sidebar .logo { border-bottom: 0; border-right: 1px solid var(--line); white-space: nowrap; }
    .nav { display: flex; padding: 8px; gap: 4px; }
    .nav-sec { display: none; }
    .nav a { padding: 8px 12px; white-space: nowrap; }
    .sidebar-foot { display: none; }
    .kpi-grid { grid-template-columns: repeat(2, 1fr); }
    .main { padding: 18px; }
}
@media (max-width: 540px) {
    .kpi-grid { grid-template-columns: 1fr; }
    .topbar { flex-direction: column; align-items: flex-start; }
}