* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgb(255 255 255 / 0.82), transparent 26rem),
    radial-gradient(circle at 88% 18%, rgb(223 232 225 / 0.5), transparent 30rem),
    linear-gradient(180deg, #faf7f1 0, var(--bg) 34rem);
}

body::before {
  position: fixed;
  inset: 4.5rem 0 auto;
  height: min(38rem, 68vh);
  pointer-events: none;
  background:
    radial-gradient(circle at 18% 22%, rgb(168 96 73 / 0.06), transparent 22rem),
    radial-gradient(circle at 78% 18%, rgb(64 91 80 / 0.07), transparent 26rem);
  content: "";
  opacity: 0;
  transform: translate3d(0, -8px, 0);
  animation: ambient-settle 900ms ease-out 80ms forwards;
}

@keyframes ambient-settle {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

a {
  color: var(--primary-dark);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--primary-dark);
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: 0.01em;
}

p {
  margin-bottom: var(--space-4);
}

svg {
  width: 1.15em;
  height: 1.15em;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.skip-link {
  position: fixed;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 50;
  transform: translateY(-150%);
  border: 1px solid var(--primary-dark);
  border-radius: var(--radius-sm);
  background: var(--surface);
  padding: var(--space-2) var(--space-3);
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: calc(var(--space-3) + env(safe-area-inset-top, 0px)) max(var(--space-4), calc((100vw - 74rem) / 2)) var(--space-3);
  border-bottom: 1px solid rgb(207 194 177 / 0.68);
  background: rgb(250 247 241 / 0.88);
  box-shadow: 0 1px 0 rgb(255 255 255 / 0.72);
  backdrop-filter: blur(18px) saturate(1.1);
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-3);
  border: 0;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text);
  padding: var(--space-1) var(--space-2) var(--space-1) 0;
  text-align: left;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--font-display);
  font-size: var(--step-1);
  letter-spacing: 0.02em;
}

.brand small {
  color: var(--muted);
  font-size: 0.75rem;
  line-height: 1.2;
}

.brand-mark {
  width: 2.3rem;
  height: 2.3rem;
  flex: 0 0 auto;
  border: 1px solid var(--primary);
  border-radius: 11px;
  background:
    linear-gradient(90deg, transparent 45%, var(--primary-dark) 46% 54%, transparent 55%),
    linear-gradient(180deg, var(--surface-strong) 0 50%, var(--primary-soft) 51%);
  box-shadow: inset 0 0 0 3px rgb(255 255 255 / 0.36), var(--shadow-sm);
}

.top-nav {
  display: flex;
  gap: var(--space-1);
  overflow-x: auto;
  scrollbar-width: none;
}

.top-nav::-webkit-scrollbar {
  display: none;
}

.top-nav button {
  display: inline-flex;
  min-height: 2.7rem;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  padding: var(--space-2) var(--space-3);
  white-space: nowrap;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.top-nav button[aria-current="page"],
.top-nav button:hover {
  border-color: var(--line);
  background: rgb(255 253 249 / 0.9);
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
}

.app-shell {
  width: min(100%, 74rem);
  margin: 0 auto;
  padding: var(--space-6) var(--space-4) calc(6rem + var(--safe-bottom));
}

.loading-state,
.noscript {
  display: grid;
  min-height: 45vh;
  place-items: center;
  text-align: center;
}

.soft-loader {
  width: 2.4rem;
  height: 2.4rem;
  border: 2px solid var(--primary-soft);
  border-top-color: var(--primary-dark);
  border-radius: 999px;
  animation: spin 0.9s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (min-width: 768px) {
  .app-shell {
    padding: var(--space-8) var(--space-7) calc(7rem + var(--safe-bottom));
  }
}

@media (max-width: 520px) {
  .top-nav span {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  body::before {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before {
    animation: none;
    opacity: 1;
    transform: none;
  }
}