* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
body.no-scroll { overflow: hidden; }
a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; }
[hidden] { display: none !important; }

/* ---------- Sidebar ---------- */
.sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  padding: 18px 14px;
  z-index: 40;
  transition: width .2s ease, transform .25s ease;
}
.brand { display: flex; align-items: center; gap: 12px; padding: 4px 6px 18px; }
.brand-logo { width: 40px; height: 40px; flex: none; }
.brand-text { flex: 1; min-width: 0; line-height: 1.15; }
.brand-text strong { display: block; font-size: 19px; font-weight: 800; letter-spacing: .06em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-text span { font-size: 10.5px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

.area-switch { position: relative; margin-bottom: 14px; }
.area-pill {
  width: 100%; display: flex; align-items: center; gap: 12px;
  padding: 8px 14px 8px 8px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border-strong);
  color: var(--text); font-size: 15.5px; font-weight: 700; cursor: pointer;
  box-shadow: 0 6px 24px rgba(45,212,191,.08);
}
.area-pill:hover { border-color: var(--accent-3); }
.area-pill .chev { margin-left: auto; color: var(--muted); transition: transform .2s; }
.area-switch.open .area-pill .chev { transform: rotate(180deg); }
.area-badge {
  width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; flex: none;
  background: radial-gradient(circle at 30% 30%, #134e4a, #0b2b29); color: var(--accent);
  border: 1px solid rgba(45,212,191,.3);
}
.area-menu {
  position: absolute; left: 0; right: 0; top: calc(100% + 8px); z-index: 50;
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: 18px;
  padding: 8px; box-shadow: var(--shadow);
  opacity: 0; transform: translateY(-6px); pointer-events: none; transition: .16s ease;
}
.area-switch.open .area-menu { opacity: 1; transform: none; pointer-events: auto; }
.area-opt {
  width: 100%; display: flex; align-items: center; gap: 14px; padding: 12px 14px; border-radius: 12px;
  background: none; border: 1px solid transparent; color: var(--text-2); font-size: 15.5px; font-weight: 600; cursor: pointer; text-align: left;
}
.area-opt:hover { background: var(--surface-2); color: var(--text); }
.area-opt.active {
  color: #fff; border-color: rgba(45,212,191,.35);
  background: linear-gradient(100deg, rgba(20,184,166,.45), rgba(13,148,136,.18) 60%, rgba(30,41,59,.4));
}
.area-opt small { margin-left: auto; font-size: 11px; color: var(--muted); font-weight: 600; }

.nav { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; padding-top: 6px; border-top: 1px solid var(--border); }
.nav-item, .nav-group-btn {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px; border-radius: 12px;
  color: var(--text-2); font-weight: 600; font-size: 14.5px; cursor: pointer; background: none; border: 0; width: 100%; text-align: left;
}
.nav-item:hover, .nav-group-btn:hover { background: var(--surface); color: var(--text); }
.nav-item.active { background: var(--accent-soft); color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); }
.nav-item .ic, .nav-group-btn .ic { flex: none; }
.nav-group-btn .chev { margin-left: auto; transition: transform .2s; color: var(--muted); }
.nav-group.open .nav-group-btn .chev { transform: rotate(180deg); }
.nav-children { margin: 2px 0 4px 21px; padding-left: 12px; border-left: 1px solid var(--border-strong); display: none; }
.nav-group.open .nav-children { display: block; }
.nav-badge { margin-left: auto; min-width: 20px; height: 20px; padding: 0 6px; border-radius: 999px; background: var(--accent); color: var(--on-accent); font-size: 11px; font-weight: 800; display: grid; place-items: center; }

.sidebar-foot { border-top: 1px solid var(--border); padding-top: 12px; display: flex; flex-direction: column; gap: 8px; }
.user-chip { display: flex; align-items: center; gap: 10px; padding: 6px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 13px; color: var(--on-accent); background: var(--grad); flex: none; }
.avatar.b { background: linear-gradient(135deg, #f9a8d4, #a78bfa); color: #2e1065; }
.user-chip .who { line-height: 1.2; min-width: 0; }
.user-chip .who strong { display: block; font-size: 14px; }
.user-chip .who span { font-size: 12px; color: var(--muted); }
.proto-tools { display: flex; gap: 6px; }
.proto-tools .btn { flex: 1; font-size: 12px; padding: 7px 8px; }

/* collapsed (desktop) */
.app.collapsed .sidebar { width: var(--sidebar-w-collapsed); padding: 18px 10px; }
.app.collapsed .brand-text,
.app.collapsed .area-pill span, .app.collapsed .area-pill .chev,
.app.collapsed .nav-item span, .app.collapsed .nav-group-btn span, .app.collapsed .nav-group-btn .chev,
.app.collapsed .user-chip .who, .app.collapsed .proto-tools, .app.collapsed .nav-badge { display: none; }
.app.collapsed .brand { flex-direction: column; padding-bottom: 12px; }
.app.collapsed .area-pill { padding: 6px; justify-content: center; }
.app.collapsed .nav-item, .app.collapsed .nav-group-btn { justify-content: center; }
.app.collapsed .nav-children { margin-left: 0; padding-left: 0; border: 0; }
.app.collapsed .area-menu { width: 240px; }
.app.collapsed .main { margin-left: var(--sidebar-w-collapsed); }

/* ---------- Main ---------- */
.main { margin-left: var(--sidebar-w); min-height: 100vh; transition: margin-left .2s ease; }
.view { padding: 28px 32px 48px; max-width: 1280px; margin: 0 auto; }
.mobile-top, .bottom-nav, .scrim { display: none; }

/* ---------- Mobile ---------- */
@media (max-width: 899px) {
  .sidebar { transform: translateX(-102%); width: min(86vw, 320px); box-shadow: var(--shadow); }
  .app.drawer-open .sidebar { transform: none; }
  .app.collapsed .sidebar { width: min(86vw, 320px); padding: 18px 14px; }
  .app.collapsed .brand-text, .app.collapsed .area-pill span, .app.collapsed .area-pill .chev,
  .app.collapsed .nav-item span, .app.collapsed .nav-group-btn span, .app.collapsed .nav-group-btn .chev,
  .app.collapsed .user-chip .who, .app.collapsed .proto-tools { display: revert; }
  .scrim { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.55); z-index: 35; opacity: 0; pointer-events: none; transition: opacity .2s; }
  .app.drawer-open .scrim { opacity: 1; pointer-events: auto; }
  .main, .app.collapsed .main { margin-left: 0; }
  .sidebar .brand .icon-btn { display: none; }

  .mobile-top {
    display: flex; align-items: center; gap: 10px; position: sticky; top: 0; z-index: 30;
    padding: 10px 16px; padding-top: max(10px, env(safe-area-inset-top));
    background: rgba(7,9,12,.88); backdrop-filter: blur(14px); border-bottom: 1px solid var(--border);
  }
  .mobile-top .area-pill { width: auto; font-size: 14.5px; padding: 5px 12px 5px 5px; }
  .mobile-top .area-badge { width: 30px; height: 30px; }
  .mobile-top .mt-logo { width: 30px; height: 30px; margin-left: auto; }

  .view { padding: 18px 16px calc(var(--bottom-nav-h) + 28px + env(safe-area-inset-bottom)); }

  .bottom-nav {
    display: grid; grid-template-columns: repeat(5, 1fr); align-items: center;
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
    height: calc(var(--bottom-nav-h) + env(safe-area-inset-bottom)); padding-bottom: env(safe-area-inset-bottom);
    background: rgba(11,15,19,.94); backdrop-filter: blur(14px); border-top: 1px solid var(--border);
  }
  .bn-item { display: flex; flex-direction: column; align-items: center; gap: 3px; color: var(--muted); font-size: 10.5px; font-weight: 700; background: none; border: 0; padding: 6px 0; cursor: pointer; }
  .bn-item.active { color: var(--accent); }
  .bn-plus { justify-self: center; width: 52px; height: 52px; border-radius: 18px; border: 0; background: var(--grad); color: var(--on-accent); display: grid; place-items: center; box-shadow: 0 8px 22px rgba(45,212,191,.35); cursor: pointer; transform: translateY(-10px); }
  .mobile-top .area-switch { margin: 0; }
  .mobile-top .area-menu { width: 260px; right: auto; }
}

/* ---------- Login (modo remoto) ---------- */
body.logged-out .app { display: none; }
#login { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; background: radial-gradient(circle at 50% 0%, rgba(45,212,191,.12), transparent 60%), var(--bg); }
.login-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border-strong); border-radius: 24px; padding: 28px 24px; display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow); }
.login-card h1 { margin: 0; text-align: center; font-size: 26px; letter-spacing: .08em; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.login-card p { margin: -8px 0 6px; text-align: center; }
.login-logo { width: 56px; height: 56px; margin: 0 auto; }