:root {
  --shell: min(1360px, calc(100% - 2rem));
  --bg: #f5efe1;
  --paper: rgba(255, 252, 247, 0.88);
  --paper-strong: rgba(255, 255, 255, 0.96);
  --ink: #17120f;
  --muted: #5c534b;
  --faint: rgba(23, 18, 15, 0.66);
  --accent: #7f5af0;
  --accent-strong: #5634c2;
  --teal: #087f7a;
  --amber: #b86500;
  --line: rgba(127, 90, 240, 0.1);
  --border: rgba(23, 18, 15, 0.11);
  --border-strong: rgba(23, 18, 15, 0.2);
  --shadow: 0 24px 70px rgba(62, 35, 116, 0.12);
  --display: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --ui: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
}

html[data-theme='dark'] {
  color-scheme: dark;
  --bg: #090712;
  --paper: rgba(20, 16, 36, 0.84);
  --paper-strong: rgba(25, 20, 45, 0.96);
  --ink: #f7f1ff;
  --muted: #c5bad6;
  --faint: rgba(247, 241, 255, 0.72);
  --accent: #a77aff;
  --accent-strong: #d6bdff;
  --teal: #56d7ce;
  --amber: #ffb762;
  --line: rgba(167, 122, 255, 0.14);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.18);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.4);
}

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

html {
  overflow-x: clip;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 14%, rgba(127, 90, 240, 0.16), transparent 26%),
    radial-gradient(circle at 92% 8%, rgba(8, 127, 122, 0.14), transparent 30%),
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 46px 46px, 46px 46px, auto;
  font-family: var(--ui);
  line-height: 1.65;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--accent) 64%, transparent);
  text-underline-offset: 0.16em;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: var(--shell);
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  top: -5rem;
  left: 1rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(22px);
}

.header-scroll {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  width: 100%;
  padding: 0.75rem max(1rem, calc((100vw - 1360px) / 2));
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.brand,
.site-nav,
.locale-menu {
  flex: 0 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border-strong);
  background: var(--ink);
  color: var(--bg);
  font-family: var(--mono);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
  white-space: nowrap;
}

.brand strong {
  font-size: 1rem;
  line-height: 1.1;
}

.brand small {
  color: var(--faint);
  font-size: 0.76rem;
}

.site-nav,
.locale-menu {
  position: relative;
}

.locale-menu summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 44px;
  min-width: 78px;
  padding: 0.75rem 0.95rem;
  border: 1px solid var(--border-strong);
  background: var(--paper);
  box-shadow: var(--shadow);
  color: var(--ink);
  list-style: none;
  user-select: none;
}

.locale-menu summary::-webkit-details-marker {
  display: none;
}

.locale-menu__chevron {
  font-size: 0.62rem;
  transition: transform 180ms ease;
}

.locale-menu[open] .locale-menu__chevron {
  transform: rotate(180deg);
}

.locale-menu__panel {
  position: fixed;
  top: 82px;
  right: max(1rem, calc((100vw - 1360px) / 2));
  z-index: 80;
  display: grid;
  width: 220px;
  padding: 0.32rem;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--paper-strong) 92%, transparent);
  box-shadow: 0 28px 64px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(18px);
}

.locale-menu__panel a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 46px;
  padding: 0.82rem 0.95rem;
  color: var(--muted);
  text-decoration: none;
}

.locale-menu__panel a[aria-current='page'],
.locale-menu__panel a:hover {
  background: color-mix(in srgb, var(--accent) 24%, transparent);
  color: var(--ink);
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.site-nav a,
.locale-menu summary,
.locale-menu__panel a,
.icon-button {
  min-height: 42px;
  padding: 0.72rem 0.9rem;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current='page'],
.locale-menu summary:hover {
  background: var(--accent);
  color: #fffaf5;
}

.icon-button {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  gap: 1rem;
  padding: 3rem 0 1.3rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent-strong);
  font-family: var(--mono);
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1,
h2 {
  font-family: var(--display);
  line-height: 0.98;
  letter-spacing: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(3rem, 8vw, 6rem);
}

h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(2rem, 4vw, 3.35rem);
}

.hero-lead {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.16rem;
}

.page-stack {
  display: grid;
  gap: 1rem;
  padding-bottom: 3rem;
}

.tool-panel,
.content-panel,
.feature-card,
.mini-card {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--paper), var(--paper-strong));
  box-shadow: var(--shadow);
}

.mini-card,
.page-link-card {
  text-decoration: none;
}

.tool-panel {
  container-type: inline-size;
  display: grid;
  gap: 1rem;
  min-width: 0;
  padding: clamp(1rem, 3vw, 1.35rem);
}

.ad-zone {
  position: relative;
  display: grid;
  align-items: center;
  min-height: 124px;
  padding: 0.7rem;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in srgb, var(--paper) 90%, transparent), var(--paper-strong));
  box-shadow: var(--shadow);
}

.ad-zone::before {
  content: "";
  position: absolute;
  inset: 0.7rem;
  opacity: 0.9;
  background:
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 12%, transparent), transparent),
    color-mix(in srgb, var(--muted) 10%, transparent);
  background-size: 220% 100%, 100% 100%;
  animation: ad-pulse 1.7s ease-in-out infinite;
}

.ad-zone[data-ad-ready='true']::before {
  opacity: 0.18;
  animation: none;
}

.ad-slot {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  min-height: 96px;
}

@keyframes ad-pulse {
  from {
    background-position: 120% 0, 0 0;
  }

  to {
    background-position: -120% 0, 0 0;
  }
}

.timer-panel.is-finished {
  border-color: color-mix(in srgb, var(--amber) 60%, var(--border));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--amber) 22%, transparent), var(--shadow);
}

.timer-display {
  display: grid;
  place-items: center;
  min-height: clamp(150px, 28vw, 270px);
  padding: 1rem;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--accent) 10%, transparent) 1px, transparent 1px),
    linear-gradient(color-mix(in srgb, var(--accent) 10%, transparent) 1px, transparent 1px),
    color-mix(in srgb, var(--paper-strong) 88%, transparent);
  background-size: 26px 26px;
  font-family: var(--mono);
  font-size: clamp(2rem, 11cqi, 9rem);
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1;
  text-align: center;
}

.status-line,
.finish-message,
.content-panel p {
  margin-bottom: 0;
  color: var(--muted);
}

.button-row,
.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.button {
  min-height: 48px;
  min-width: 104px;
  padding: 0.82rem 1rem;
  border: 1px solid var(--border-strong);
  background: var(--paper-strong);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.86rem;
  letter-spacing: 0.08em;
  line-height: 1.25;
  overflow-wrap: anywhere;
  text-transform: uppercase;
  white-space: normal;
}

.button:hover,
.button.primary {
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fffaf5;
}

.secondary-row .button:hover {
  background: var(--teal);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.75rem;
}

.settings-grid label {
  display: grid;
  gap: 0.35rem;
  color: var(--faint);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.settings-grid input,
.settings-grid select {
  width: 100%;
  min-height: 46px;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border-strong);
  background: var(--paper-strong);
  color: var(--ink);
}

.phase-badge {
  justify-self: start;
  padding: 0.45rem 0.75rem;
  background: var(--teal);
  color: white;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.lap-list {
  display: grid;
  gap: 0.4rem;
  max-height: 340px;
  padding: 0;
  overflow: auto;
  list-style: none;
}

.lap-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--paper-strong) 78%, transparent);
  font-family: var(--mono);
}

.clock-grid,
.card-grid,
.mini-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.85rem;
}

.clock-card,
.feature-card,
.mini-card {
  display: grid;
  gap: 0.45rem;
  padding: 1rem;
}

.feature-card {
  color: inherit;
  text-decoration: none;
}

.feature-card strong,
.clock-card strong,
.mini-card strong {
  font-size: 1.35rem;
  line-height: 1.1;
}

.feature-card span,
.clock-card span,
.clock-card small,
.clock-card em,
.mini-card span {
  color: var(--muted);
}

.clock-card strong {
  font-family: var(--mono);
  font-size: 2rem;
}

.clock-card em {
  font-style: normal;
  font-size: 0.9rem;
}

.content-panel {
  display: grid;
  gap: 0.9rem;
  padding: 1.1rem;
}

.case-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.55rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.case-list li,
.link-cloud a,
.faq-list details {
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--paper-strong) 78%, transparent);
}

.case-list li {
  padding: 0.75rem 0.85rem;
}

.link-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.link-cloud a {
  padding: 0.65rem 0.8rem;
  text-decoration: none;
}

.faq-list {
  display: grid;
  gap: 0.55rem;
}

.faq-list details {
  padding: 0.8rem 0.9rem;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 700;
}

.faq-list p {
  margin: 0.6rem 0 0;
}

.mini-card strong {
  font-family: var(--mono);
  color: var(--accent-strong);
}

.date-display {
  align-content: center;
  gap: 0.2rem;
}

.date-display span {
  display: block;
}

.date-display small {
  color: var(--muted);
  font-family: var(--ui);
  font-size: clamp(1rem, 2.6vw, 1.45rem);
  font-weight: 600;
}

.page-link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.75rem;
}

.page-link-card {
  display: grid;
  gap: 0.45rem;
  padding: 0.95rem;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--paper-strong) 82%, transparent);
  color: inherit;
}

.page-link-card strong {
  line-height: 1.15;
}

.page-link-card span {
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer {
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0 1.5rem;
  color: var(--muted);
}

.footer-grid p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

@media (max-width: 720px) {
  .brand small {
    display: none;
  }

  .hero {
    gap: 0.75rem;
    padding: 1.25rem 0 0.8rem;
  }

  .hero-lead {
    font-size: 1rem;
  }

  .tool-panel {
    gap: 0.8rem;
    padding: 0.9rem;
  }

  .ad-zone {
    min-height: 98px;
    padding: 0.45rem;
  }

  .ad-zone::before {
    inset: 0.45rem;
  }

  .button {
    flex: 1 1 132px;
    min-width: 0;
  }

  .timer-display {
    padding: 0.75rem;
    min-height: 118px;
    font-size: clamp(2rem, 10cqi, 4rem);
  }

  .footer-grid {
    display: grid;
  }

  .locale-menu__panel {
    right: 1rem;
  }
}