.app-shell {
  position: relative;
  width: min(var(--max-app-width), 100%);
  margin: 0 auto;
  padding: 0 var(--space-md) calc(6.5rem + env(safe-area-inset-bottom));
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
}

.topbar-content {
  width: min(var(--max-app-width), 100%);
  margin: 0 auto;
  padding: var(--space-sm) var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.brand-logo {
  height: 2.1rem;
  width: auto;
  max-width: min(42vw, 8.5rem);
  object-fit: contain;
  box-shadow: var(--shadow-soft);
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: var(--space-xs);
}

.desktop-nav a {
  color: var(--color-text-muted);
  padding: 0.42rem 0.72rem;
  border-radius: var(--radius-pill);
  font-size: 0.93rem;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.desktop-nav a.is-active,
.desktop-nav a:hover {
  color: var(--color-text);
  background: rgba(248, 112, 0, 0.16);
}

.topbar-avatar {
  width: 2.15rem;
  height: 2.15rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  background: linear-gradient(
    160deg,
    rgba(248, 112, 0, 0.25) 0%,
    rgba(0, 40, 96, 0.38) 100%
  );
  color: var(--color-text);
  display: inline-grid;
  place-items: center;
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-fast), border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.topbar-avatar:hover {
  transform: translateY(-1px);
  border-color: rgba(248, 112, 0, 0.65);
}

.topbar-avatar.is-active {
  border-color: rgba(248, 112, 0, 0.9);
  box-shadow: 0 0 0 2px rgba(248, 112, 0, 0.24), var(--shadow-soft);
}

.topbar-avatar-mark {
  font-family: var(--font-display);
  font-size: 0.98rem;
  letter-spacing: 0.03em;
  line-height: 1;
}

:root[data-theme="light"] .topbar-avatar {
  border-color: rgba(17, 24, 39, 0.2);
  background: linear-gradient(
    160deg,
    rgba(248, 112, 0, 0.2) 0%,
    rgba(0, 40, 96, 0.16) 100%
  );
}

main {
  padding-top: var(--space-xl);
  display: grid;
  gap: var(--space-xl);
}

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  background: linear-gradient(
      140deg,
      rgba(248, 112, 0, 0.2) 0%,
      rgba(248, 112, 0, 0.05) 50%,
      rgba(0, 40, 96, 0.22) 100%
    ),
    var(--hero-overlay);
  border: 1px solid var(--hero-border);
  box-shadow: var(--shadow-heavy);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -15% -45% auto;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--hero-glow), transparent 66%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  gap: var(--space-lg);
}

.section {
  display: grid;
  gap: var(--space-md);
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  font-size: 1.55rem;
}

.two-col {
  display: grid;
  gap: var(--space-md);
}

.grid-cards {
  display: grid;
  gap: var(--space-md);
}

.form-grid {
  display: grid;
  gap: var(--space-md);
}

.footer-note {
  margin: var(--space-xl) 0 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.bottom-nav {
  position: fixed;
  z-index: 24;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(0.65rem + env(safe-area-inset-bottom));
  width: min(620px, calc(100% - 1rem));
  background: var(--bottom-nav-bg);
  border: 1px solid var(--bottom-nav-border);
  border-radius: 1rem;
  box-shadow: var(--shadow-heavy);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0.35rem;
  gap: 0.2rem;
}

.bottom-nav a {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  padding: 0.38rem 0.15rem;
  border-radius: 0.6rem;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.bottom-nav a.is-active,
.bottom-nav a:hover {
  color: var(--color-text);
  background: rgba(248, 112, 0, 0.22);
}

[data-animate] {
  opacity: 0;
  transform: translateY(14px);
  animation: reveal 600ms ease forwards;
}

[data-animate="2"] {
  animation-delay: 130ms;
}

[data-animate="3"] {
  animation-delay: 220ms;
}

[data-animate="4"] {
  animation-delay: 310ms;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 740px) {
  .app-shell {
    padding-bottom: calc(6.5rem + env(safe-area-inset-bottom));
  }

  .grid-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-col {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .span-2 {
    grid-column: span 2;
  }
}

@media (min-width: 1100px) {
  .hero-grid {
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
  }

  .grid-cards.cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .app-shell {
    padding-bottom: 2.5rem;
  }

  .bottom-nav {
    display: none;
  }

  .desktop-nav {
    display: inline-flex;
    margin-left: auto;
  }

}