:root {
  --bg: #0b1220;
  --bg-2: #0f1a2e;
  --panel: #141b33;
  --panel-2: #1a2340;
  --border: #242f52;
  --text: #e8edf8;
  --muted: #94a3c4;
  --accent: #a78bfa;
  --accent-2: #38bdf8;
  --warn: #fbbf24;
  --danger: #f87171;
  --good: #34d399;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.55;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 100% -10%, rgba(167, 139, 250, 0.09), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(56, 189, 248, 0.09), transparent 60%),
    var(--bg);
}

.app-shell { display: flex; min-height: 100vh; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 250px;
  flex-shrink: 0;
  padding: 22px 14px;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 8px 18px;
}
.brand-mark {
  width: 40px; height: 40px;
  border-radius: 12px;
  display: grid; place-items: center;
  font-size: 22px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.brand-name { font-weight: 700; font-size: 16px; }
.brand-name em { color: var(--accent); font-style: normal; }
.brand-sub { font-size: 11px; color: var(--muted); }

.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px;
  border: 0; border-radius: 10px;
  background: transparent;
  color: var(--muted);
  font: inherit; font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s, color 0.15s, transform 0.1s;
}
.nav-item:hover { background: var(--panel); color: var(--text); }
.nav-item.active {
  background: linear-gradient(135deg, rgba(167,139,250,0.16), rgba(56,189,248,0.12));
  color: var(--text);
  box-shadow: inset 0 0 0 1px rgba(167,139,250,0.3);
}
.nav-ico { width: 20px; text-align: center; }

.sidebar-foot {
  margin-top: auto;
  padding: 12px;
  border-radius: 10px;
  background: rgba(167, 139, 250, 0.08);
  border: 1px solid rgba(167, 139, 250, 0.22);
  font-size: 11px;
  color: var(--muted);
}

/* ---------- Main ---------- */
.content {
  flex: 1;
  padding: 34px 40px;
  max-width: 1100px;
  min-width: 0;
}

.view { display: none; animation: fade 0.25s ease; }
.view.active { display: block; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

h1 { font-size: 30px; margin: 0 0 6px; letter-spacing: -0.5px; }
h2 { font-size: 22px; margin: 0 0 14px; letter-spacing: -0.3px; }
h3 { font-size: 16px; margin: 0 0 8px; }
.lead { color: var(--muted); font-size: 15px; margin: 0 0 26px; max-width: 760px; }

/* ---------- Cards / grid ---------- */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  transition: transform 0.15s, border-color 0.15s;
}
.card:hover { transform: translateY(-2px); border-color: rgba(167,139,250,0.35); }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.badge.tag { background: rgba(167,139,250,0.14); color: var(--accent); }
.badge.cert { background: rgba(56,189,248,0.14); color: var(--accent-2); }
.badge.warn { background: rgba(251,191,36,0.14); color: var(--warn); }
.badge.good { background: rgba(52,211,153,0.14); color: var(--good); }
.badge.info { background: rgba(56,189,248,0.14); color: var(--accent-2); }
.badge.danger { background: rgba(248,113,113,0.14); color: var(--danger); }

.list { list-style: none; margin: 8px 0 0; padding: 0; }
.list li {
  position: relative;
  padding: 5px 0 5px 22px;
  color: var(--muted);
  font-size: 14px;
}
.list li::before {
  content: "";
  position: absolute; left: 2px; top: 12px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.list.diag li::before { background: var(--accent-2); }
.list.red li::before { background: var(--danger); }
.list.soc li::before { background: var(--good); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px;
  border: 0; border-radius: 10px;
  font: inherit; font-weight: 600; font-size: 14px;
  cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #131022;
  transition: transform 0.1s, box-shadow 0.15s, opacity 0.15s;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(167,139,250,0.25); }
.btn:active { transform: translateY(0); }
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn.ghost:hover { border-color: var(--accent); box-shadow: none; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.small { padding: 7px 12px; font-size: 12.5px; border-radius: 8px; }

.row { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

/* ---------- Progress ---------- */
.progress-track {
  height: 10px;
  border-radius: 999px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.3s ease;
}
.progress-label { font-size: 12.5px; color: var(--muted); }

/* ---------- Callouts ---------- */
.callout {
  border-radius: 12px;
  padding: 14px 16px;
  margin: 16px 0;
  font-size: 14px;
  border: 1px solid var(--border);
}
.callout.warn { background: rgba(251,191,36,0.08); border-color: rgba(251,191,36,0.3); }
.callout.info { background: rgba(56,189,248,0.08); border-color: rgba(56,189,248,0.3); }
.callout.danger { background: rgba(248,113,113,0.08); border-color: rgba(248,113,113,0.3); }
.callout.good { background: rgba(52,211,153,0.08); border-color: rgba(52,211,153,0.3); }
.callout.violet { background: rgba(167,139,250,0.08); border-color: rgba(167,139,250,0.3); }
.callout b { color: var(--text); }

/* ---------- Links ---------- */
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Chips / fields ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--muted);
  font: inherit; font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.on { background: rgba(167,139,250,0.16); border-color: var(--accent); color: var(--text); }

.search {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font: inherit; font-size: 13.5px;
  min-width: 240px;
}
.search:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(167,139,250,0.15); }

/* ---------- Guides ---------- */
.guide-card { display: flex; flex-direction: column; gap: 8px; }
.guide-card .g-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.guide-card .g-sum { color: var(--muted); font-size: 13.5px; margin: 0; flex: 1; }
.guide-card .g-prog { margin-top: 4px; }

.gstep {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  margin-bottom: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.gstep:hover { border-color: rgba(167,139,250,0.4); }
.gstep.done { background: rgba(52,211,153,0.05); border-color: rgba(52,211,153,0.35); }
.gstep .check {
  width: 24px; height: 24px; flex-shrink: 0;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700;
  color: transparent;
  margin-top: 2px;
  transition: all 0.15s;
}
.gstep.done .check { background: var(--good); border-color: var(--good); color: #06231f; }
.gstep .g-body { flex: 1; min-width: 0; }
.gstep .g-title { font-weight: 700; font-size: 14.5px; }
.gstep.done .g-title { color: var(--good); }
.gstep .g-detail { color: var(--muted); font-size: 13.5px; margin-top: 3px; }
.gstep .g-links { margin-top: 10px; display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

code, pre {
  font-family: Consolas, "Courier New", monospace;
  font-size: 12.5px;
}
pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  color: #c9e6ff;
  white-space: pre-wrap;
}

/* ---------- Services ---------- */
.svc-card { display: flex; flex-direction: column; }
.svc-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.svc-head h3 { margin: 0; }
.svc-tagline { color: var(--muted); font-size: 13.5px; margin: 6px 0 0; }
.svc-section { font-size: 12px; font-weight: 700; letter-spacing: 0.3px; margin: 14px 0 2px; }
.svc-section.free { color: var(--good); }
.svc-section.limit { color: var(--warn); }
.svc-section.honest { color: var(--accent); }
.svc-card ul { margin-top: 2px; }
.svc-card ul li { font-size: 13px; }
.svc-tip { margin-top: 10px; }
.honesty-box {
  margin-top: 4px;
  border-left: 3px solid var(--accent);
  background: rgba(167,139,250,0.07);
  border-radius: 0 10px 10px 0;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--text);
}
.honesty-box b { color: var(--accent); }

/* ---------- Radar ---------- */
.radar-item {
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
  margin-bottom: 12px;
}
.radar-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.radar-head h3 { margin: 0; }
.radar-plain { font-size: 14px; margin: 8px 0; }
.radar-why { font-size: 13.5px; color: var(--muted); margin: 6px 0; }
.radar-why b { color: var(--text); }
.radar-try { font-size: 13px; margin-top: 8px; }
.radar-try b { color: var(--good); }

/* ---------- Marketing ---------- */
.mk-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  white-space: pre-wrap;
  font-size: 13.5px;
  line-height: 1.6;
  margin: 10px 0;
}
.mk-num {
  width: 26px; height: 26px; border-radius: 50%;
  background: rgba(167,139,250,0.14);
  border: 1px solid rgba(167,139,250,0.4);
  color: var(--accent);
  font-weight: 700; font-size: 12.5px;
  display: inline-grid; place-items: center;
  margin-right: 8px;
}

/* ---------- AI assistant ---------- */
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--muted); }
.field textarea {
  width: 100%;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font: inherit; font-size: 14px;
  transition: border-color 0.15s, box-shadow 0.15s;
  min-height: 88px;
  resize: vertical;
}
.field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(167,139,250,0.15); }
.ai-key {
  width: 100%;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text);
  font: inherit; font-size: 13.5px;
}
.ai-key:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(167,139,250,0.15); }
.ai-answer {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  font-size: 14px;
  white-space: pre-wrap;
  line-height: 1.6;
}
.ai-answer.loading { color: var(--muted); }
.ai-note { font-size: 12px; color: var(--muted); }
.ai-preset {
  padding: 7px 12px; border-radius: 999px; border: 1px solid var(--border);
  background: var(--bg-2); color: var(--muted); font: inherit; font-size: 12.5px; cursor: pointer;
}
.ai-preset:hover { border-color: var(--accent); color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; flex-wrap: wrap; align-items: center; }
  .brand { padding: 0 8px 0 0; }
  .sidebar-foot { display: none; }
  .nav-item { flex: 1 1 auto; justify-content: center; }
  .content { padding: 22px 18px; }
}