:root {
  --bg: #f0ebe4;
  --surface: #ffffff;
  --ink: #1a1a18;
  --paper: #faf5f2;
  --accent: #c8842d;
  --accent-muted: #d0c8be;
  --line: #e0d8ce;
  --line-strong: #d0c8be;
  --muted: #aaa;
  --muted-deep: #888;
  --rest-ink: #bbb;
  --rest-line: #ccc;
  --success: #2e7d32;
  --strava: #fc4c02;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Space Mono", monospace;
  overflow-x: hidden;
}

button {
  font: inherit;
}

.poster-shell {
  min-height: 100vh;
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.poster-header {
  display: flex;
  align-items: center;
  padding: 12px 64px;
}

.brand-lockup {
  display: inline-flex;
  flex-direction: column;
  font-family: "Archivo Black", sans-serif;
  font-size: 18px;
  line-height: 0.85;
  letter-spacing: 1px;
  cursor: pointer;
}

.brand-lockup span:last-child {
  color: var(--accent);
}

.week-switcher {
  display: flex;
  align-items: center;
  gap: 16px;
}

.week-current {
  min-width: 110px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: "Archivo Black", sans-serif;
  font-size: 18px;
  line-height: 16px;
  letter-spacing: 0.6px;
  color: var(--accent);
  text-transform: uppercase;
}

.week-arrow,
.week-arrow-spacer {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.week-arrow {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  transition: transform 160ms ease, color 160ms ease;
}

.week-arrow__icon {
  width: 18px;
  height: 18px;
  display: block;
}

.week-arrow:hover,
.week-arrow:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.poster-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.poster-stage {
  display: flex;
  align-items: stretch;
  padding: 24px 64px 0;
}

.hero-block {
  display: flex;
  flex-direction: column;
}

.hero-title {
  display: flex;
  flex-direction: column;
  font-family: "Archivo Black", sans-serif;
}

.hero-week {
  font-size: clamp(170px, 15vw, 200px);
  line-height: 0.85;
  letter-spacing: -6px;
}

.hero-number {
  font-size: clamp(260px, 24vw, 320px);
  line-height: 0.78;
  letter-spacing: -8px;
  color: var(--accent);
}

.hero-summary {
  display: none;
}

.hero-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-nav .week-nav-arrow,
.hero-nav .week-nav-arrow-spacer {
  display: none;
}

.hero-separator {
  color: var(--accent-muted);
}

.week-summary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin: 0;
  padding: 16px 64px 32px;
  font-size: 11px;
  line-height: 14px;
  font-weight: 700;
  color: var(--muted);
}

.card-rail-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 32px 32px 0;
}

.rail-arrow,
.rail-arrow-spacer {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.rail-arrow {
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
  padding: 0;
  transition: border-color 160ms ease;
}

.rail-arrow:hover {
  border-color: var(--accent);
}

.rail-arrow-spacer {
  visibility: hidden;
}

.week-nav-arrow,
.week-nav-arrow-spacer {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.week-nav-arrow {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
}

.detail-panel-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

.detail-panel {
  display: none;
  position: relative;
  width: 340px;
  height: 340px;
  flex-shrink: 0;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 32px;
  flex-direction: column;
  justify-content: space-between;
  gap: 16px;
}

.detail-panel.is-visible {
  display: flex;
  animation: fade-up 320ms cubic-bezier(0.2, 0.7, 0.15, 1) both;
}

.detail-panel--dark {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.detail-panel--rest {
  opacity: 0.5;
  background: transparent;
  border-color: var(--line-strong);
}

.detail-panel__top,
.detail-panel__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.detail-panel__day {
  font-size: 14px;
  line-height: 16px;
  text-transform: uppercase;
}

.detail-panel--light .detail-panel__day {
  color: var(--muted-deep);
}

.detail-panel--dark .detail-panel__day {
  color: var(--accent);
}

.detail-panel__status {
  font-size: 10px;
  line-height: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
}

.detail-panel--dark .detail-panel__status {
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.5);
}

.detail-panel__status--complete {
  color: var(--success);
  border-color: var(--success);
}

.detail-panel--dark .detail-panel__status--complete {
  color: var(--success);
  border-color: var(--success);
}

.detail-panel__title {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: 24px;
  line-height: 1.2;
}

.detail-panel__text {
  margin: 0;
  font-size: 13px;
  line-height: 20px;
}

.detail-panel--light .detail-panel__text {
  color: var(--muted-deep);
}

.detail-panel--dark .detail-panel__text {
  color: rgba(255, 255, 255, 0.6);
}

.detail-panel__metric {
  font-size: 14px;
  line-height: 18px;
}

.detail-panel--light .detail-panel__metric {
  color: var(--muted);
}

.detail-panel--dark .detail-panel__metric {
  color: var(--accent);
}

.detail-panel__distance {
  font-size: 16px;
  line-height: 20px;
  font-weight: 700;
  color: var(--accent);
}

.detail-panel__unit {
  font-size: 11px;
  font-weight: 400;
  color: var(--muted);
}

.detail-panel--dark .detail-panel__unit {
  color: rgba(255, 255, 255, 0.4);
}

.detail-panel__strava {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  line-height: 16px;
  font-weight: 700;
  color: var(--success);
  text-decoration: none;
  transition: color 160ms ease;
}

.detail-panel__strava:hover {
  color: var(--strava);
}


.card-rail {
  display: flex;
}

.card-rail--desktop {
  flex: 1;
  gap: 12px;
}

.desktop-card {
  flex: 1 1 0;
  height: 153px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 24px;
  background: var(--surface);
  animation: card-rise 420ms cubic-bezier(0.2, 0.7, 0.15, 1) both;
  animation-delay: calc(var(--card-index) * 50ms);
}

.desktop-card--light {
  background: var(--surface);
  border-color: var(--line);
}

.desktop-card--dark {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.desktop-card--rest {
  opacity: 0.5;
  background: transparent;
  border-color: var(--line-strong);
}

.desktop-card.is-active {
  border-color: var(--accent);
  border-width: 2px;
}

.desktop-card__top,
.desktop-card__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.desktop-card__day {
  font-size: 10px;
  line-height: 12px;
  text-transform: uppercase;
}

.desktop-card--light .desktop-card__day {
  color: var(--muted-deep);
}

.desktop-card--dark .desktop-card__day {
  color: var(--accent);
}

.desktop-card--rest .desktop-card__day {
  color: var(--rest-ink);
}

.desktop-card__title {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: 16px;
  line-height: 1.2;
}

.desktop-card__metric {
  font-size: 11px;
  line-height: 14px;
}

.desktop-card__distance {
  font-size: 12px;
  line-height: 16px;
  font-weight: 700;
}

.desktop-card--light .desktop-card__metric {
  color: var(--muted);
}

.desktop-card--light .desktop-card__distance {
  color: var(--accent);
}

.desktop-card--dark .desktop-card__metric,
.desktop-card--dark .desktop-card__distance {
  color: var(--accent);
}

.desktop-card--rest .desktop-card__title,
.desktop-card--rest .desktop-card__metric {
  color: var(--rest-ink);
}

.card-detail {
  margin: 0;
  font-size: 11px;
  line-height: 16px;
  color: var(--muted);
  display: none;
}

.desktop-card .card-detail {
  display: none !important;
}

[data-expandable] {
  cursor: pointer;
}

.card-toggle {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 2px solid transparent;
  background: transparent;
  color: transparent;
  padding: 0;
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.card-toggle:hover,
.card-toggle:focus-visible {
  transform: translateY(-1px);
  outline: none;
}

.card-toggle--light {
  border-color: #ddd;
}

.card-toggle--dark {
  border-color: #333;
}

.desktop-card.is-complete .card-toggle {
  background: transparent;
  color: transparent;
}

.desktop-card.is-complete .card-toggle--light {
  border-color: #ddd;
}

.desktop-card.is-complete .card-toggle--dark {
  border-color: #333;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.strava-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: transparent;
  padding: 4px 8px;
  font-family: "Space Mono", monospace;
  font-size: 9px;
  line-height: 12px;
  letter-spacing: 0.8px;
  color: var(--muted-deep);
  cursor: pointer;
  text-transform: uppercase;
  transition:
    border-color 160ms ease,
    color 160ms ease;
}

.strava-btn:hover,
.strava-btn:focus-visible {
  border-color: var(--strava);
  color: var(--strava);
  outline: none;
}

.strava-btn--connected {
  border-color: var(--strava);
  color: var(--strava);
}

.strava-check {
  font-weight: 700;
}

.strava-indicator {
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--success);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  flex-shrink: 0;
  text-decoration: none;
  transition: background-color 160ms ease;
}

.strava-indicator:hover {
  background: var(--strava);
}

.mobile-card {
  display: none;
}

.error-panel {
  margin: 64px;
  padding: 24px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.error-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 12px;
  line-height: 16px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.error-title {
  margin: 0;
  font-family: "Archivo Black", sans-serif;
  font-size: 28px;
  line-height: 1;
}

.error-copy {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 22px;
}

.reveal {
  animation: fade-up 520ms cubic-bezier(0.2, 0.7, 0.15, 1) both;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

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

@keyframes card-rise {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

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

@media (max-width: 700px) {
  .poster-shell {
    max-width: 100%;
  }

  .poster-header {
    align-items: center;
    padding: 16px 20px 0;
  }

  .brand-lockup {
    font-size: 16px;
  }

  .poster-stage {
    padding: 16px 20px 0;
    justify-content: center;
  }

  .hero-block {
    padding: 16px 0;
  }

  .hero-nav .week-nav-arrow,
  .hero-nav .week-nav-arrow-spacer {
    display: inline-flex;
  }

  .hero-title {
    flex-direction: row;
    align-items: baseline;
    gap: 10px;
  }

  .hero-week,
  .hero-number {
    font-size: 36px;
    line-height: 1;
    letter-spacing: -1px;
  }

  .week-summary {
    padding: 8px 20px 20px;
  }

  .card-rail-wrapper {
    display: block;
    padding: 8px 0 0;
  }

  .card-rail--mobile {
    flex-direction: column;
    gap: 8px;
    padding: 8px 20px 20px;
    width: 100%;
  }

  .mobile-card__row {
    width: 100%;
  }

  .desktop-card {
    display: none;
  }

  .mobile-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-radius: 10px;
    border: 1px solid var(--line);
    padding: 16px;
    animation: card-rise 380ms cubic-bezier(0.2, 0.7, 0.15, 1) both;
    animation-delay: calc(var(--card-index) * 45ms);
  }

  .mobile-card__row {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .mobile-card.is-expanded .card-detail {
    display: block;
  }

  .mobile-card--dark .card-detail {
    color: rgba(255, 255, 255, 0.5);
  }

  .mobile-card--rest .card-detail {
    color: var(--rest-ink);
  }

  .detail-panel-wrap {
    display: none;
  }

  .detail-panel {
    display: none !important;
  }

  .mobile-card--light {
    background: var(--surface);
    border-color: var(--line);
  }

  .mobile-card--dark {
    background: var(--ink);
    border-color: var(--ink);
    color: var(--paper);
  }

  .mobile-card--rest {
    background: transparent;
    border-color: var(--line-strong);
    opacity: 0.5;
  }

  .mobile-card.is-complete {
    border-width: 2px;
    border-color: var(--success);
  }

  .mobile-card.strava-verified {
    border-width: 2px;
    border-color: var(--strava);
  }

  .mobile-card.strava-verified .mobile-card__day {
    color: var(--strava);
  }

  .mobile-card__day {
    width: 44px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex-shrink: 0;
  }

  .mobile-card__day-name,
  .mobile-card__day-date {
    font-size: 9px;
    line-height: 12px;
  }

  .mobile-card__day-name {
    font-weight: 700;
  }

  .mobile-card--light .mobile-card__day {
    color: var(--muted-deep);
  }

  .mobile-card--dark .mobile-card__day {
    color: var(--accent);
  }

  .mobile-card--rest .mobile-card__day {
    color: var(--rest-ink);
  }

  .mobile-card.is-complete .mobile-card__day {
    color: var(--success);
  }

  .mobile-card__content {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .mobile-card__title {
    margin: 0;
    font-family: "Archivo Black", sans-serif;
    font-size: 16px;
    line-height: 20px;
  }

  .mobile-card__meta {
    margin: 0;
    font-size: 10px;
    line-height: 12px;
  }

  .mobile-card--light .mobile-card__meta {
    color: var(--muted);
  }

  .mobile-card--dark .mobile-card__meta {
    color: var(--accent);
  }

  .mobile-card--rest .mobile-card__title {
    color: var(--rest-ink);
  }

  .card-toggle {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
  }

  .mobile-card .card-toggle--light {
    border-color: #ddd;
  }

  .mobile-card .card-toggle--dark {
    border-color: #333;
  }

  .mobile-card.is-complete .card-toggle {
    border-color: var(--success);
    background: var(--success);
    color: #fff;
  }

  .strava-indicator {
    width: 24px;
    height: 24px;
    font-size: 12px;
  }

  .strava-btn {
    font-size: 7px;
    padding: 3px 6px;
    letter-spacing: 0.4px;
  }

  .header-actions {
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}