/* ============================================================================
   ZERAVA CRM — layout.css
   Sidebar, header, main grid
   ============================================================================ */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  background: var(--navy2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: var(--s4) 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar__brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.02em;
  padding: var(--s2) var(--s5) var(--s5);
  color: var(--white);
  display: flex;
  align-items: center;
  gap: var(--s2);
}
.sidebar__brand .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
}

.sidebar__nav { display: flex; flex-direction: column; gap: 2px; padding: 0 var(--s3); }

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--s3);
  padding: 10px var(--s3);
  border-radius: var(--r-sm);
  color: var(--white);
  font-size: 13px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 120ms ease, border-color 120ms ease;
  text-decoration: none;
}
.nav-item:hover { background: var(--navy3); color: var(--white); }
.nav-item.is-active {
  background: var(--navy3);
  border-color: var(--border);
  color: var(--white);
}
.nav-item .nav-icon {
  width: 18px; height: 18px;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--blue);
}
.nav-item .nav-count {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
  font-family: var(--font-mono);
}

.sidebar__footer {
  margin-top: auto;
  padding: var(--s4) var(--s5);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: var(--s2);
}
.sidebar__footer .user-email { color: var(--white); font-size: 12px; }

/* Main column */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  overflow: hidden;
}

.topbar {
  height: var(--header-h);
  flex: none;
  display: flex;
  align-items: center;
  padding: 0 var(--s5);
  border-bottom: 1px solid var(--border);
  background: var(--navy);
  z-index: 10;
  gap: var(--s4);
}
.topbar__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.topbar__actions { margin-left: auto; display: flex; gap: var(--s3); align-items: center; }

/* Content area — independent scroll */
.content {
  padding: var(--s6) var(--s6);
  max-width: 1400px;
  width: 100%;
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

/* Grids */
.grid { display: grid; gap: var(--s4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

/* Login */
.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 20% 0%, rgba(46,170,226,0.12), transparent 50%),
    radial-gradient(circle at 80% 100%, rgba(0,184,148,0.08), transparent 50%),
    var(--navy);
  padding: var(--s5);
}
.login-card {
  background: var(--navy2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--s7) var(--s6);
  width: 100%;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
}
.login-card .brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 28px;
  margin-bottom: var(--s2);
  display: flex;
  align-items: center;
  gap: var(--s2);
}
.login-card .brand .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 16px var(--blue);
}
.login-card p.lead {
  color: var(--muted);
  margin-bottom: var(--s5);
  font-size: 13px;
}

/* Lead detail panel — independent scroll on each side */
.split {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: var(--s5);
  align-items: start;
}
.split.is-collapsed { grid-template-columns: 1fr; }
.split > .panel-detail {
  position: sticky;
  top: 0;
  max-height: calc(100vh - var(--header-h) - var(--s6) - var(--s6));
  overflow-y: auto;
}

@media (max-width: 1100px) {
  .split { grid-template-columns: 1fr; }
  .split > .panel-detail { position: static; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}