* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
  line-height: 1.6;
}

a { color: #D4A373; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: #081220;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand { display: flex; align-items: center; gap: .5rem; font-size: 1.1rem; }
.brand .logo { color: #D4A373; font-size: 1.5rem; }
.brand .tag { color: #64748b; font-size: .85rem; margin-left: .5rem; }

.top-actions { display: flex; align-items: center; gap: 1rem; }
.lang-toggle {
  display: inline-flex;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 6px;
  overflow: hidden;
}
.lang-btn {
  padding: .35rem .7rem;
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 1px;
}
.lang-btn.active { background: #D4A373; color: #0f172a; }

.demo-link {
  background: #D4A373;
  color: #0f172a !important;
  padding: .5rem 1rem;
  border-radius: 6px;
  font-weight: 600;
  font-size: .9rem;
}
.demo-link:hover { text-decoration: none; background: #E6C200; }

/* Layout */
.layout { display: grid; grid-template-columns: 260px 1fr; min-height: calc(100vh - 60px); }

.sidebar {
  background: #1e2838;
  padding: 1.5rem 0;
  border-right: 1px solid rgba(255,255,255,.05);
  overflow-y: auto;
}
.nav-section {
  padding: .75rem 1.5rem .25rem;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #64748b;
  font-weight: 600;
}
.nav-link {
  display: block;
  padding: .5rem 1.5rem;
  color: #cbd5e1;
  font-size: .9rem;
  border-left: 3px solid transparent;
  transition: all .15s;
}
.nav-link:hover { background: rgba(255,255,255,.03); text-decoration: none; color: #fff; }
.nav-link.active { background: rgba(212,163,115,.1); border-left-color: #D4A373; color: #D4A373; }

/* Content */
.content { padding: 2rem 3rem; max-width: 1100px; }
.page { display: none; }
.page.active { display: block; }

h1 { color: #fff; margin-bottom: .5rem; font-size: 2rem; }
h2 { color: #fff; margin: 2rem 0 1rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.05); }
h3 { color: #fff; margin-bottom: .5rem; font-size: 1.1rem; }
.lead { color: #94a3b8; font-size: 1.1rem; margin-bottom: 2rem; }

p { margin-bottom: 1rem; color: #cbd5e1; }
ol, ul { margin-left: 1.5rem; margin-bottom: 1rem; color: #cbd5e1; }
li { margin-bottom: .3rem; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.card {
  background: #1e2838;
  border: 1px solid rgba(255,255,255,.05);
  border-radius: 8px;
  padding: 1.5rem;
}
.card-icon { font-size: 2rem; margin-bottom: .5rem; }

/* Mock screens */
.screen {
  background: #1e2838;
  border-radius: 8px;
  overflow: hidden;
  margin: 1.5rem 0;
  border: 1px solid rgba(255,255,255,.08);
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}
.screen-header {
  background: #0f172a;
  padding: .75rem 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.screen-header .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #475569;
}
.screen-header .dot.red { background: #ef4444; }
.screen-header .dot.yellow { background: #eab308; }
.screen-header .dot.green { background: #22c55e; }
.screen-url {
  margin-left: .75rem;
  font-family: monospace;
  color: #94a3b8;
  font-size: .85rem;
  padding: .25rem .75rem;
  background: rgba(0,0,0,.3);
  border-radius: 4px;
  flex: 1;
}
.screen-body { padding: 1.5rem; }

/* Simulated UI elements */
.sim-nav {
  background: #0f172a;
  padding: .75rem 1rem;
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-bottom: 1rem;
  border-radius: 6px;
  font-size: .85rem;
}
.sim-nav-item {
  padding: .3rem .7rem;
  color: #94a3b8;
  border-radius: 4px;
}
.sim-nav-item.active { background: rgba(212,163,115,.15); color: #D4A373; }

.sim-card {
  background: #0f172a;
  border: 1px solid rgba(255,255,255,.05);
  border-radius: 6px;
  padding: 1rem;
  margin-bottom: 1rem;
}
.sim-card-header {
  font-weight: 600;
  color: #fff;
  margin-bottom: .75rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid rgba(255,255,255,.05);
  display: flex;
  justify-content: space-between;
}

.sim-field {
  margin-bottom: .75rem;
}
.sim-label {
  display: block;
  font-size: .75rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: .25rem;
}
.sim-input, .sim-select {
  width: 100%;
  padding: .5rem .75rem;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 4px;
  color: #e2e8f0;
  font-size: .9rem;
}
.sim-input[readonly] { color: #94a3b8; }

.sim-btn {
  display: inline-block;
  padding: .5rem 1rem;
  background: #D4A373;
  color: #0f172a;
  border-radius: 4px;
  font-weight: 600;
  font-size: .9rem;
  border: none;
  cursor: pointer;
  margin-right: .5rem;
}
.sim-btn.secondary { background: transparent; color: #cbd5e1; border: 1px solid rgba(255,255,255,.1); }
.sim-btn.danger { background: #ef4444; color: #fff; }
.sim-btn.warning { background: #eab308; color: #0f172a; }

.sim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
.sim-table th, .sim-table td {
  text-align: left;
  padding: .5rem;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.sim-table th { color: #94a3b8; font-weight: 600; font-size: .75rem; text-transform: uppercase; }

.sim-badge {
  display: inline-block;
  padding: .15rem .5rem;
  border-radius: 3px;
  font-size: .75rem;
  font-weight: 600;
}
.sim-badge.success { background: rgba(34,197,94,.2); color: #4ade80; }
.sim-badge.warning { background: rgba(234,179,8,.2); color: #fbbf24; }
.sim-badge.danger { background: rgba(239,68,68,.2); color: #f87171; }
.sim-badge.info { background: rgba(212,163,115,.2); color: #D4A373; }

/* Permissions matrix */
.matrix { width: 100%; border-collapse: collapse; margin: 1rem 0; font-size: .85rem; }
.matrix th, .matrix td { padding: .5rem; border: 1px solid rgba(255,255,255,.08); text-align: center; }
.matrix th:first-child, .matrix td:first-child { text-align: left; }
.matrix th { background: #0f172a; color: #94a3b8; }
.matrix .yes { color: #4ade80; }
.matrix .no { color: #64748b; }

/* Steps */
.steps {
  counter-reset: step;
  margin: 1rem 0;
}
.step {
  counter-increment: step;
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem;
  background: #1e2838;
  border-radius: 6px;
  border-left: 3px solid #D4A373;
}
.step::before {
  content: counter(step);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: #D4A373;
  color: #0f172a;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.step-content { flex: 1; }
.step-content h4 { color: #fff; margin-bottom: .25rem; }
.step-content p { margin: 0; color: #94a3b8; font-size: .9rem; }

/* Tabs */
.tabs { display: flex; gap: .25rem; margin: 1rem 0; border-bottom: 1px solid rgba(255,255,255,.08); }
.tab-btn {
  padding: .5rem 1rem;
  background: none;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  font-size: .9rem;
}
.tab-btn.active { color: #D4A373; border-bottom-color: #D4A373; }
.tab-content { display: none; padding: 1rem 0; }
.tab-content.active { display: block; }

/* Info box */
.info-box {
  background: rgba(212,163,115,.08);
  border-left: 3px solid #D4A373;
  padding: 1rem;
  border-radius: 4px;
  margin: 1rem 0;
}
.info-box strong { color: #D4A373; }

code {
  background: rgba(0,0,0,.3);
  padding: .15rem .4rem;
  border-radius: 3px;
  font-size: .85em;
  color: #D4A373;
}

@media (max-width: 768px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .content { padding: 1rem; }
}