html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--text-base);
  background:
    radial-gradient(circle at top left, rgba(69, 110, 245, 0.08), transparent 28%),
    radial-gradient(circle at top right, rgba(14, 165, 161, 0.06), transparent 24%),
    linear-gradient(180deg, #fafbfe 0%, var(--bg-page) 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.32) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.32) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.32), transparent 80%);
}

.app-shell {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.main-content {
  display: grid;
  gap: 22px;
}

.view {
  display: none;
}

.view.is-active {
  display: grid;
  gap: 22px;
}

.view-placeholder {
  place-items: center;
  min-height: 60vh;
}

.ph-wrap {
  width: min(720px, 100%);
  padding: 56px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.ph-wrap h2 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
  color: var(--text-strong);
}

.ph-wrap p {
  font-size: 1.02rem;
  color: var(--text-muted);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid rgba(69, 110, 245, 0.55);
  outline-offset: 2px;
}

body[data-theme="dark"] {
  background:
    radial-gradient(circle at top left, rgba(103, 132, 255, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(45, 184, 170, 0.08), transparent 24%),
    linear-gradient(180deg, #151d2b 0%, var(--bg-page) 100%);
}

body[data-theme="dark"]::before {
  opacity: 0.16;
}