:root{
  --bg:#f4f7fb;--panel:#fff;--text:#152033;--muted:#6b7688;--line:#e6ebf2;
  --dark:#0f1726;--dark2:#182236;--accent:#f59e0b;--ok:#16a34a;--error:#dc2626;
  --shadow:0 12px 35px rgba(22,32,51,.07);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
.shell{min-height:100vh;display:grid;grid-template-columns:250px 1fr}
.sidebar{position:sticky;top:0;height:100vh;background:linear-gradient(180deg,var(--dark),#101827);color:#d9e1ee;padding:24px 18px;display:flex;flex-direction:column}
.brand{display:flex;gap:12px;align-items:center;padding:4px 8px 24px}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--accent);display:grid;place-items:center;color:#111827;font-weight:900}
.brand-mark.large{width:52px;height:52px;border-radius:15px}
.brand strong{display:block;color:#fff;font-size:17px}.brand small{display:block;color:#94a3b8;margin-top:2px}
nav{display:flex;flex-direction:column;gap:5px}
nav a{padding:11px 12px;border-radius:9px;color:#aeb9ca;font-weight:650;font-size:14px}
nav a:hover{background:#172338;color:#fff}nav a.active{background:#202d43;color:#fff;box-shadow:inset 3px 0 0 var(--accent)}
.nav-sep{height:1px;background:#283449;margin:10px 8px}
.sidebar-foot{margin-top:auto;padding:12px 10px;border-top:1px solid #283449;color:#9da8b9;font-size:13px;display:flex;flex-direction:column;gap:12px}
.server-state{display:flex;align-items:center;gap:8px}
.logout-button{width:100%;border:1px solid #344258;background:#172338;color:#dbe5f2;border-radius:9px;padding:9px 12px;cursor:pointer;text-align:left;font-weight:700}
.logout-button:hover{background:#202d43;color:#fff}
.dot{display:inline-block;width:9px;height:9px;border-radius:50%;background:#94a3b8}
.dot.ok{background:var(--ok);box-shadow:0 0 0 4px rgba(22,163,74,.12)}
.main{padding:42px;max-width:1450px;width:100%;margin:0 auto}
.topbar{display:flex;justify-content:space-between;gap:24px;align-items:flex-start;margin-bottom:28px}
.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:850;color:#7d8798;margin:0 0 7px}
h1{font-size:34px;line-height:1.1;margin:0 0 8px;letter-spacing:-.03em}h2{font-size:22px;margin:0;letter-spacing:-.02em}h3{margin:0 0 6px;font-size:16px}
.lead{margin:0;color:var(--muted);font-size:15px}.status-pill,.back{background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:10px 14px;display:flex;gap:8px;align-items:center;font-size:13px;font-weight:700;box-shadow:var(--shadow)}
.grid{display:grid;gap:16px}.stats{grid-template-columns:repeat(4,minmax(0,1fr))}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}
.stat-card{padding:20px;display:flex;flex-direction:column;gap:8px;min-height:130px}.card-label{font-size:12px;font-weight:750;color:var(--muted)}
.stat-card strong,.detail-card strong{font-size:19px}.mini{margin-top:auto;font-size:11px;font-weight:750;color:#8a94a4}.mini.ok{color:var(--ok)}
.section-head{margin:34px 0 14px}.modules{grid-template-columns:repeat(2,minmax(0,1fr))}
.module-card{padding:20px;display:grid;grid-template-columns:50px 1fr 24px;gap:16px;align-items:center;transition:.18s transform,.18s box-shadow}
.module-card:hover{transform:translateY(-2px);box-shadow:0 16px 40px rgba(22,32,51,.11)}
.module-icon{width:48px;height:48px;border-radius:13px;background:#eef2f7;display:grid;place-items:center;font-size:12px;font-weight:900;color:#314057}
.module-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.arrow{font-size:20px;color:#9aa5b4}
.notice{margin-top:24px;padding:16px 18px;border:1px dashed #cbd5e1;border-radius:14px;color:#687386;display:flex;gap:10px;align-items:center;font-size:13px}.notice strong{color:#334155}
.detail-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.detail-card{padding:22px;min-height:110px;display:flex;flex-direction:column;gap:9px}
.empty-state{margin-top:28px;background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:54px 28px;text-align:center;box-shadow:var(--shadow)}
.empty-state h2{margin:12px 0 8px}.empty-state p{max-width:620px;margin:0 auto;color:var(--muted);line-height:1.6}
.empty-mark{width:54px;height:54px;border-radius:16px;background:#eef2f7;display:grid;place-items:center;margin:0 auto;font-weight:900;color:#4b5870}
.flash{border-radius:11px;padding:12px 14px;margin-bottom:18px;font-size:13px;font-weight:650;border:1px solid}
.flash.error{background:#fff1f2;border-color:#fecdd3;color:#9f1239}.flash.success{background:#f0fdf4;border-color:#bbf7d0;color:#166534}
.settings-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:16px;margin-top:28px}
.form-card,.info-card{padding:24px}.form-help{color:var(--muted);font-size:13px;line-height:1.6;margin:8px 0 20px}
.form-stack{display:flex;flex-direction:column;gap:15px}.form-stack label{font-size:12px;font-weight:750;color:#4b5870;display:flex;flex-direction:column;gap:7px}
.form-stack input{width:100%;border:1px solid #d8dee8;background:#fff;border-radius:10px;padding:11px 12px;outline:none;color:var(--text)}
.form-stack input:focus{border-color:#94a3b8;box-shadow:0 0 0 3px rgba(148,163,184,.16)}
.primary-button{border:0;background:var(--dark);color:#fff;border-radius:10px;padding:11px 15px;font-weight:800;cursor:pointer}.primary-button:hover{background:#1b273b}
.inline-button{display:inline-block;margin-top:18px}
.security-list{margin:18px 0 0;padding-left:20px;color:#586477;font-size:13px;line-height:2}
.login-body{min-height:100vh;background:radial-gradient(circle at 20% 10%,#1c2a42 0,#101827 35%,#0b1220 100%);display:grid;place-items:center;padding:24px}
.login-wrap{width:100%;max-width:440px}.login-brand{display:flex;align-items:center;gap:13px;color:#fff;margin:0 0 18px 8px}
.login-brand strong{display:block;font-size:20px}.login-brand small{display:block;color:#9dacbf;margin-top:2px}
.login-card{background:#fff;border:1px solid rgba(255,255,255,.25);border-radius:22px;padding:32px;box-shadow:0 28px 80px rgba(0,0,0,.28)}
.login-card h1{font-size:31px}.login-lead{margin-bottom:24px}.login-form{margin-top:8px}
.login-foot{text-align:center;color:#8490a3;font-size:12px;margin-top:16px}
@media(max-width:980px){
  .shell{grid-template-columns:1fr}.sidebar{position:relative;height:auto;padding:14px 16px}.brand{padding-bottom:12px}
  nav{display:grid;grid-template-columns:repeat(4,1fr);gap:5px}nav a{text-align:center;padding:9px 6px;font-size:12px}.nav-sep{display:none}
  .sidebar-foot{display:none}.main{padding:24px 18px 40px}.stats,.detail-grid{grid-template-columns:repeat(2,1fr)}.settings-grid{grid-template-columns:1fr}
}
@media(max-width:640px){
  nav{grid-template-columns:repeat(2,1fr)}.topbar{flex-direction:column}h1{font-size:28px}.stats,.detail-grid,.modules{grid-template-columns:1fr}
  .main{padding:22px 14px 34px}.notice{align-items:flex-start;flex-direction:column}.login-card{padding:24px}
}