/* ============================================
   PropCRM — Layout
   ============================================ */

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

html, body {
  height: 100%;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  /* font-size controlled by variables.css fluid scale */
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition), width var(--transition);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.brand-icon {
  width: 36px; height: 36px;
  background: var(--brand);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; color: #fff;
  flex-shrink: 0;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 18px;
  color: #fff;
  line-height: 1.1;
}

.brand-tagline {
  font-size: var(--fs-xs);
  color: var(--sidebar-text);
  margin-top: 2px;
}

/* Nav */
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
  overflow-y: auto;
}

.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.nav-section-label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  padding: 16px 20px 6px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 20px;
  font-size: var(--fs-base);
  color: var(--sidebar-text);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  position: relative;
  margin: 2px 8px;
  border-radius: var(--radius-sm);
}

.nav-link:hover {
  background: var(--sidebar-hover-bg);
  color: #fff;
}

.nav-link.active {
  background: var(--sidebar-active-bg);
  color: var(--sidebar-active-text);
  font-weight: 500;
}

.nav-link.active::before {
  content: '';
  position: absolute;
  left: -8px; top: 25%; bottom: 25%;
  width: 3px;
  background: var(--brand);
  border-radius: 0 3px 3px 0;
}

.nav-link i { font-size: 20px; flex-shrink: 0; }

.nav-badge {
  margin-left: auto;
  background: #ef4444;
  color: #fff;
  font-size: var(--fs-xs);
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 10px;
  min-width: 20px;
  text-align: center;
}

/* Sidebar user */
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  cursor: pointer;
}

.user-avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.user-name { font-size: var(--fs-base); color: #fff; font-weight: 600; }
.user-role { font-size: var(--fs-xs); color: var(--sidebar-text); margin-top: 1px; }
.user-arrow { font-size: 16px; color: var(--sidebar-text); margin-left: auto; }

/* ── Main Content ── */
.main-content {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition);
}

/* ── Topbar ── */
.topbar {
  height: var(--topbar-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.sidebar-toggle {
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 20px;
  display: none;
  align-items: center;
  justify-content: center;
}

.topbar-title {
  font-size: var(--fs-xl);
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}

.topbar-actions { display: flex; gap: 8px; align-items: center; }

.topbar-btn {
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  color: var(--text-secondary);
  font-size: 18px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  transition: background var(--transition);
}

.topbar-btn:hover { background: var(--surface2); color: var(--text-primary); }

.notif-dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 8px; height: 8px;
  background: #ef4444;
  border-radius: 50%;
  border: 2px solid var(--surface);
}

/* ── Pages ── */
.page-wrapper { flex: 1; }

.page { display: none; }
.page.active { display: block; }

.page-inner {
  padding: 32px 32px 48px;
  max-width: 1440px;
}

/* WhatsApp page is full height */
#page-whatsapp { display: none; height: calc(100vh - var(--topbar-height)); }
#page-whatsapp.active { display: flex; }

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 14px;
}

.page-title {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 36px);
  color: var(--text-primary);
  font-weight: 400;
  margin: 0;
  line-height: 1.2;
}

.page-subtitle {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ── Responsive — Tablet ── */
@media (max-width: 1024px) {
  .page-inner { padding: 24px 24px 40px; }
}

/* ── Responsive — Mobile ── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }
  .main-content { margin-left: 0; }
  .sidebar-toggle { display: flex; }
  .page-inner { padding: 16px 14px 32px; }
  .page-header { margin-bottom: 18px; gap: 10px; }
}

@media (max-width: 480px) {
  .page-inner { padding: 14px 12px 28px; }
  .topbar { padding: 0 14px; }
}