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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--tone-ink);
  background:
    radial-gradient(circle at top right, color-mix(in srgb, var(--tone-glow) 32%, transparent), transparent 32%),
    linear-gradient(180deg, var(--tone-bg), var(--tone-bg-deep));
  min-height: 100vh;
  background-attachment: fixed;
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
}

body::before {
  opacity: 0.08;
  background-image: url("/assets/spb/patterns/pattern-01.svg");
  background-size: 220px 220px;
}

body[data-city="msk"]::before {
  background-image: url("/assets/msk/patterns/pattern-01.svg");
}

body::after {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), transparent 22%, rgba(255, 255, 255, 0.1));
  z-index: -1;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

.site-shell {
  width: min(100%, 1400px);
  margin: 0 auto;
  padding: 0 var(--space-4) var(--space-7);
}

.site-header,
.site-footer,
.content-card,
.utility-strip,
.page-hero__text,
.track-card,
.set-card,
.track-detail,
.saved-plan-card,
.note-card,
.rules-grid__item,
.contact-card {
  backdrop-filter: blur(18px);
  background: var(--tone-panel);
  border: 1px solid var(--tone-line);
  box-shadow: var(--shadow-soft);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  gap: var(--space-3);
  align-items: center;
  grid-template-columns: 1.1fr auto auto;
  margin: var(--space-4) 0 var(--space-5);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-xl);
}

.brand-lockup {
  display: grid;
  gap: 0.2rem;
}

.brand-lockup strong {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 1vw + 1rem, 1.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-lockup span {
  color: var(--tone-ink-soft);
  font-size: 0.95rem;
}

.main-nav,
.city-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.main-nav a,
.city-switch a,
.pill-link,
.saved-plan-card__button,
.plan-toolbar button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.72rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--tone-line);
  background: rgba(255, 255, 255, 0.54);
  text-decoration: none;
  font-size: 0.92rem;
  font-family: var(--font-display);
}

.main-nav a[aria-current="page"],
.city-switch a[aria-current="page"],
.pill-link.is-solid,
.saved-plan-card__button,
.plan-toolbar button {
  background: var(--tone-accent);
  color: #fff;
  border-color: transparent;
}

.page-hero,
.stack-grid,
.tracks-grid,
.sets-grid,
.rules-grid,
.contacts-grid,
.notes-grid,
.plan-grid {
  display: grid;
  gap: var(--space-5);
}

.page-hero {
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.95fr);
  align-items: stretch;
  margin-bottom: var(--space-6);
}

.page-hero__text {
  padding: clamp(1.4rem, 2vw, 2.6rem);
  border-radius: var(--radius-xl);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--tone-ink-soft);
}

.eyebrow img {
  width: 1.2rem;
  height: 1.2rem;
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  line-height: 0.96;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.4rem, 6vw, 5.4rem);
}

h2 {
  font-size: clamp(1.8rem, 3.6vw, 3.4rem);
}

h3 {
  font-size: clamp(1.1rem, 2vw, 1.55rem);
}

p,
li {
  line-height: 1.65;
  font-size: 1rem;
}

.content-card,
.utility-strip {
  padding: var(--space-5);
  border-radius: var(--radius-xl);
}

.utility-strip {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.tracks-grid,
.sets-grid,
.notes-grid,
.contacts-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

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

.track-card,
.set-card,
.note-card,
.contact-card,
.saved-plan-card,
.rules-grid__item {
  padding: var(--space-4);
  border-radius: var(--radius-lg);
}

.track-card header,
.set-card header,
.saved-plan-card__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  align-items: start;
}

.track-card__icon,
.set-card__icon {
  width: 3rem;
  height: 3rem;
}

.scene-figure {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  min-height: 100%;
  box-shadow: var(--shadow-deep);
}

.scene-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section-title {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.track-detail {
  padding: var(--space-5);
  border-radius: var(--radius-xl);
}

.track-detail__grid,
.set-detail__grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.8rem;
  border-radius: 999px;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}

.status-chip--free {
  background: color-mix(in srgb, var(--tone-status-free) 18%, white);
  color: var(--tone-status-free);
}

.status-chip--conditional {
  background: color-mix(in srgb, var(--tone-status-watch) 16%, white);
  color: var(--tone-status-watch);
}

.status-chip--separate {
  background: color-mix(in srgb, var(--tone-status-separate) 18%, white);
  color: var(--tone-status-separate);
}

.plan-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.saved-plan-card__mix {
  color: var(--tone-ink-soft);
}

.site-footer {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1.2fr 1fr;
  margin-top: var(--space-7);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
}

.site-footer small {
  color: var(--tone-ink-soft);
}

.toast-stack {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  display: grid;
  gap: 0.6rem;
  z-index: 60;
}

.toast-stack__item {
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(16, 41, 68, 0.9);
  color: #fff;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.24s ease, transform 0.24s ease;
  max-width: 22rem;
}

.toast-stack__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 980px) {
  .site-header,
  .page-hero,
  .utility-strip,
  .site-footer,
  .track-detail__grid,
  .set-detail__grid,
  .tracks-grid,
  .sets-grid,
  .rules-grid,
  .plan-grid,
  .notes-grid,
  .contacts-grid {
    grid-template-columns: 1fr;
  }

  .site-shell {
    padding-inline: var(--space-3);
  }

  .site-header {
    grid-template-columns: 1fr;
  }
}