:root {
  --bg: #0a0f1e;
  --surface: #111827;
  --surface2: #1a2235;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #22c55e;
  --accent2: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --sidebar-w: 220px;
  --bottom-nav-h: 64px;
  --safe-b: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
.hidden { display: none !important; }
.error { color: var(--danger); font-size: 0.85rem; margin: 8px 0; }
.hint { color: var(--muted); font-size: 0.78rem; }
.success { color: var(--accent); font-size: 0.85rem; }

.shell { max-width: 480px; margin: 48px auto; padding: 0 16px; }
.brand { text-align: center; margin-bottom: 20px; }
.brand img { width: 56px; height: 56px; border-radius: 12px; }
.brand h1 { margin: 10px 0 4px; font-size: 1.35rem; }
.brand p { margin: 0; color: var(--muted); font-size: 0.88rem; }

.tabs { display: flex; gap: 8px; margin-bottom: 12px; }
.tab { flex: 1; padding: 10px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface2); color: var(--muted); cursor: pointer; font-weight: 600; }
.tab.active { color: var(--text); border-color: rgba(34,197,94,.4); background: rgba(34,197,94,.1); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 18px; }
label { display: block; margin: 10px 0 4px; font-size: 0.82rem; color: var(--muted); }
input, select, textarea {
  width: 100%; padding: 10px 12px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface2); color: var(--text); font: inherit;
}
textarea { min-height: 72px; resize: vertical; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 10px 16px; border-radius: 10px; border: 1px solid var(--border);
  background: var(--surface2); color: var(--text); font-weight: 600; font-size: 0.85rem; cursor: pointer;
}
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border: none; color: #052e16; }
.btn-danger { border-color: rgba(239,68,68,.4); color: var(--danger); }
.btn-sm { padding: 6px 10px; font-size: 0.78rem; }
.link { background: none; border: none; color: var(--accent); cursor: pointer; font: inherit; padding: 0; }

.layout { display: flex; min-height: 100vh; min-height: 100dvh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar .logo { display: flex; align-items: center; gap: 10px; padding: 8px; margin-bottom: 12px; }
.sidebar .logo img { width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0; }
.sidebar .logo strong { display: block; font-size: 0.9rem; }
.sidebar .logo span { font-size: 0.72rem; color: var(--muted); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 140px; }
.sidebar-spacer { flex: 1; min-height: 8px; }

.nav-group { font-size: 0.7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 12px 8px 4px; }
.sidebar .nav-item {
  display: block; width: 100%; text-align: left; padding: 10px 12px; border-radius: 10px;
  border: none; background: transparent; color: var(--muted); cursor: pointer; font: inherit; font-weight: 500;
  text-decoration: none;
}
.sidebar .nav-item.active, .sidebar .nav-item:hover { background: rgba(34,197,94,.1); color: var(--text); }

.main { flex: 1; padding: 20px; overflow: auto; min-width: 0; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.topbar h2 { margin: 0; font-size: 1.25rem; }
.pill { font-size: 0.72rem; font-weight: 600; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.bottom-nav { display: none; }

.grid-kpi { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 16px; }
.kpi { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px; }
.kpi span { display: block; font-size: 0.75rem; color: var(--muted); margin-bottom: 4px; }
.kpi strong { font-size: 1.2rem; }

.module-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; }
.module-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 14px; cursor: pointer; transition: border-color .15s; }
.module-card:hover { border-color: rgba(34,197,94,.35); }
.module-card h4 { margin: 0 0 4px; font-size: 0.92rem; }
.module-card p { margin: 0; font-size: 0.78rem; color: var(--muted); }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 16px; margin-bottom: 14px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.panel-head h3 { margin: 0; font-size: 1rem; }

.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -4px; padding: 0 4px; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; min-width: 480px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: .04em; }
tr.low-stock td { color: var(--warn); }

.pipeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(100px, 1fr)); gap: 8px; margin-top: 12px; }
.pipe-col { background: var(--surface2); border-radius: 10px; padding: 10px; min-height: 72px; }
.pipe-col h4 { margin: 0 0 8px; font-size: 0.78rem; color: var(--muted); text-transform: capitalize; }
.pipe-col strong { font-size: 1.1rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.form-row label:has(textarea) { grid-column: 1 / -1; }
.contact-comments { display: flex; flex-direction: column; gap: 6px; min-width: 160px; }
.contact-comments textarea { min-height: 48px; font-size: 0.82rem; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }

.module-intro {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.5;
  margin: 0 0 14px;
}

.grid-kpi-secondary { margin-bottom: 16px; }
.grid-kpi-secondary .kpi { opacity: 0.92; }

.badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
  text-transform: capitalize;
}
.badge-good { background: rgba(34,197,94,.15); color: var(--accent); }
.badge-warn { background: rgba(245,158,11,.15); color: var(--warn); }
.badge-danger { background: rgba(239,68,68,.15); color: var(--danger); }
.badge-muted { background: rgba(148,163,184,.12); color: var(--muted); }

.panel .hint { font-size: 0.75rem; }

@media (max-width: 767px) {
  .layout { flex-direction: column; }

  .sidebar { display: none; }

  .main {
    padding: 14px 12px calc(var(--bottom-nav-h) + var(--safe-b) + 16px);
    width: 100%;
  }

  .topbar { margin-bottom: 14px; }
  .topbar h2 { font-size: 1.05rem; }
  .pill { font-size: 0.65rem; max-width: 45vw; }

  .grid-kpi { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .kpi { padding: 12px; }
  .kpi strong { font-size: 1.05rem; }

  .module-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .pipeline { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .panel { padding: 14px 12px; }

  .bottom-nav {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 100;
    height: calc(var(--bottom-nav-h) + var(--safe-b));
    padding-bottom: var(--safe-b);
    background: rgba(7, 11, 20, 0.94);
    backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .bottom-nav::-webkit-scrollbar { display: none; }

  .bottom-nav-item {
    flex: 0 0 auto;
    min-width: 64px;
    max-width: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 6px;
    border: none;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-size: 0.62rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
  }
  .bottom-nav-item.active { color: var(--accent); }
  .bottom-nav-icon { font-size: 1.15rem; line-height: 1; }
}

@media (min-width: 768px) {
  .bottom-nav { display: none !important; }
}