/* ============================================
   02-layout.css — Nav, page containers, headers
   ============================================ */

/* ---------- NAV ---------- */
.topnav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 var(--space-6);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-2);
  backdrop-filter: blur(24px) saturate(180%);
  background: rgba(255, 255, 255, 0.85);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-lg);
  font-weight: 700;
  letter-spacing: -0.4px;
  cursor: pointer;
  user-select: none;
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), #059669);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.logo-text { color: var(--text); }

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
}

.tab-btn {
  padding: 7px 14px;
  color: var(--muted-2);
  font-size: var(--fs-sm);
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--t-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: -0.1px;
}

.tab-btn:hover {
  color: var(--text);
  background: var(--surface-2);
}

.tab-btn.active {
  color: var(--blue-text);
  background: var(--blue-soft);
}

.tab-btn i { font-size: 16px; }

.tab-btn.deal-room-tab {
  color: var(--muted-2);
  background: transparent;
}

.tab-btn.deal-room-tab:hover {
  color: #4338ca;
  background: rgba(99, 102, 241, 0.10);
}

.tab-btn.deal-room-tab.active {
  color: #4338ca;
  background: rgba(99, 102, 241, 0.15);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.balance-pill {
  background: var(--accent-soft);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--r-full);
  padding: 7px 14px;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--accent);
  font-family: 'IBM Plex Mono', monospace;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all var(--t-fast);
}

.balance-pill:hover {
  background: rgba(16, 185, 129, 0.15);
}

.balance-pill i { font-size: 14px; }

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--r-md);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-2);
  font-size: 16px;
  transition: all var(--t-fast);
  position: relative;
}

.icon-btn:hover {
  background: var(--surface-3);
  color: var(--text);
  border-color: var(--border-3);
}

.notif-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 7px;
  height: 7px;
  background: var(--red);
  border-radius: 50%;
  border: 2px solid var(--bg);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--fs-xs);
  color: #fff;
  cursor: pointer;
  border: 1.5px solid var(--surface);
  box-shadow: 0 0 0 1px var(--border-3);
}

/* ---------- PAGE CONTAINER ---------- */
.page {
  position: relative;
  z-index: 2;
  display: none;
  padding: var(--space-10) var(--space-8) var(--space-16);
  max-width: 1200px;
  margin: 0 auto;
}

.page.active {
  display: block;
}

/* ---------- PAGE HEADER ---------- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.page-title {
  font-size: var(--fs-4xl);
  font-weight: 700;
  letter-spacing: -1.2px;
  line-height: 1.1;
  margin-bottom: var(--space-2);
  color: var(--text);
}

.page-sub {
  font-size: var(--fs-base);
  color: var(--muted-2);
  line-height: 1.5;
  max-width: 580px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}

/* ---------- BACK BUTTON ---------- */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--muted-2);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--space-6);
  transition: color var(--t-fast);
  padding: 6px 12px;
  border-radius: var(--r-sm);
  margin-left: -12px;
}

.back-btn:hover {
  color: var(--text);
  background: var(--surface-2);
}

.back-btn i { font-size: 16px; }

/* ---------- TOAST WRAP ---------- */
.toast-wrap {
  position: fixed;
  bottom: var(--space-5);
  right: var(--space-5);
  z-index: 1500;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  max-width: 360px;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  position: relative;
  z-index: 2;
  background: var(--surface);
  border-top: 1px solid var(--border-2);
  margin-top: var(--space-16);
}

/* Hide footer on the chat (full-screen) page */
body:has(.deal-page.active) .site-footer {
  display: none;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-12) var(--space-8) var(--space-6);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}

.footer-brand .logo {
  margin-bottom: var(--space-3);
}

.footer-tag {
  font-size: var(--fs-sm);
  color: var(--muted-2);
  line-height: 1.65;
  max-width: 340px;
  margin-bottom: var(--space-4);
}

.footer-trust {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 11px;
  color: var(--muted-2);
  font-weight: 500;
}

.trust-pill i {
  color: var(--accent);
  font-size: 13px;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  color: var(--text);
  margin-bottom: var(--space-4);
}

.footer-col a {
  display: block;
  font-size: var(--fs-sm);
  color: var(--muted-2);
  padding: 5px 0;
  transition: color var(--t-fast);
  text-decoration: none;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-copy {
  font-size: var(--fs-xs);
  color: var(--muted-2);
}

.footer-socials {
  display: flex;
  gap: 6px;
}

.footer-social {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: var(--surface-2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-2);
  transition: all var(--t-fast);
  font-size: 15px;
  text-decoration: none;
}

.footer-social:hover {
  background: var(--blue-soft);
  border-color: rgba(59, 130, 246, 0.25);
  color: var(--blue-text);
  transform: translateY(-1px);
}

.footer-legal {
  display: flex;
  gap: var(--space-4);
}

.footer-legal a {
  font-size: var(--fs-xs);
  color: var(--muted-2);
  transition: color var(--t-fast);
  text-decoration: none;
}

.footer-legal a:hover {
  color: var(--text);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .site-footer-inner {
    padding: var(--space-8) var(--space-4) var(--space-5);
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}