/* Landing page layout. Components and tokens live in styles.css. */

.dim {
  color: var(--ink-3);
}

/* ---------- Nav ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  transition: background 0.25s, border-color 0.25s, backdrop-filter 0.25s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(244, 240, 230, 0.82);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom-color: var(--hair);
}
.nav-row {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 72px;
}
.nav-mark {
  font-size: 30px;
}
.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-2);
  padding: 8px 12px;
  border-radius: 999px;
  transition: color 0.15s, background 0.15s;
}
.nav-links a:hover {
  color: var(--ink);
  background: rgba(12, 34, 48, 0.06);
}
.nav-end {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang {
  display: inline-flex;
  border: 1px solid var(--hair-2);
  border-radius: 999px;
  padding: 3px;
}
.lang button {
  border: 0;
  background: transparent;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  padding: 5px 9px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--ink-3);
}
.lang button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--paper);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  padding: clamp(28px, 5vw, 64px) 0 0;
  overflow: hidden;
}
.hero-contours {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--sea);
  opacity: 0.22;
  pointer-events: none;
}
.hero-contours .soundings {
  opacity: 0.9;
}
.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding-bottom: clamp(48px, 7vw, 96px);
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.hero-copy .display {
  margin-top: -6px;
}
.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 14.5px;
  color: var(--ink-2);
}
.hero-facts li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  min-height: 600px;
}

/* Phone */
.phone {
  position: relative;
  width: 300px;
  height: 620px;
  border-radius: 50px;
  padding: 11px;
  background: linear-gradient(145deg, #1d3a4b, var(--ink) 40%, #06141c);
  box-shadow:
    inset 0 0 0 1.5px rgba(255, 255, 255, 0.08),
    0 50px 90px -30px rgba(12, 34, 48, 0.55),
    0 20px 40px -20px rgba(12, 34, 48, 0.4);
  transform: rotate(3deg);
}
.phone.reveal.in {
  transform: rotate(3deg);
}
.phone-island {
  position: absolute;
  top: 22px;
  left: 50%;
  translate: -50% 0;
  width: 92px;
  height: 26px;
  border-radius: 999px;
  background: #050d12;
}
.phone-screen {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 40px;
  overflow: hidden;
  background: var(--sea);
}
.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% 0;
  animation: drift 14s ease-in-out infinite alternate;
}
@keyframes drift {
  from {
    transform: scale(1.06) translate(0, 0);
  }
  to {
    transform: scale(1.12) translate(-8px, 10px);
  }
}
.ui-top {
  position: absolute;
  top: 56px;
  left: 14px;
  right: 14px;
  display: flex;
  justify-content: space-between;
}
.ui-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink);
  background: rgba(251, 250, 246, 0.86);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 999px;
}
.ui-prompt {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 86px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(251, 250, 246, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.ui-eyebrow {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--sea);
}
.ui-q {
  font-family: var(--serif);
  font-variation-settings: "opsz" 36, "SOFT" 30;
  font-size: 19px;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.ui-helm {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 22px;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}
.ui-b {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: 14px;
  font-size: 12.5px;
  font-weight: 600;
  background: rgba(251, 250, 246, 0.9);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.ui-b.port::before,
.ui-b.stbd::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--port);
}
.ui-b.stbd::before {
  background: var(--stbd);
}
.ui-b.active {
  background: var(--ink);
  color: var(--paper);
}

.hero-rule {
  position: absolute;
  width: 290px;
  left: max(-60px, calc(50% - 400px));
  top: 220px;
  transform: rotate(-2deg);
}
.hero-rule.reveal.in {
  transform: rotate(-2deg);
}
.hero-rule h4 {
  font-size: 19px;
}
.hero-rule .criteria li {
  grid-template-columns: 22px 1fr auto;
  padding: 8px 0;
  font-size: 14px;
}

/* Ticker */
.ticker {
  position: relative;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  overflow: hidden;
  background: var(--paper);
}
.ticker-track {
  display: flex;
  width: max-content;
  animation: tick 48s linear infinite;
}
.ticker-track span {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 16px 28px;
  white-space: nowrap;
  border-right: 1px solid var(--hair);
}
.ticker-track b {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 13px;
  color: var(--sea);
}
.ticker-track i {
  font-family: var(--serif);
  font-size: 20px;
  font-variation-settings: "opsz" 36, "SOFT" 60;
}
@keyframes tick {
  to {
    transform: translateX(-50%);
  }
}

/* ---------- Sections ---------- */

.section {
  padding: clamp(80px, 11vw, 150px) 0;
  position: relative;
}
.section-head {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: clamp(40px, 6vw, 72px);
  max-width: 820px;
}
.section-head.split {
  max-width: none;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: end;
  gap: 32px;
}
.section-head.split > div {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.section-head.center {
  align-items: center;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

/* How */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.step {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.step-art {
  width: 100%;
  aspect-ratio: 200 / 140;
  border-radius: var(--r);
  border: 1px solid var(--hair);
  margin-bottom: 10px;
  overflow: hidden;
}
.step-art .course {
  stroke: var(--ink);
  stroke-width: 1;
  stroke-dasharray: 3 3;
  opacity: 0.55;
}
.step-art .x {
  fill: none;
  stroke: var(--port);
  stroke-width: 1.4;
  stroke-dasharray: 2 2;
}
.step-art .opt {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
}
.step-art .opt.port {
  stroke: var(--port);
}
.step-art .opt.stbd {
  stroke: var(--stbd);
}
.step-art .opt.hold {
  stroke: var(--ink);
  stroke-dasharray: 4 4;
}
.step-art .track {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.4;
  stroke-dasharray: 4 3;
}
.step-art .track.faint {
  opacity: 0.4;
}
.step-art .para {
  font-family: var(--serif);
  font-size: 54px;
  font-style: italic;
  font-variation-settings: "opsz" 144, "SOFT" 100;
  fill: var(--sea);
}
.step-art .para-k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  fill: var(--ink-2);
}
.step-n {
  color: var(--sea);
  font-size: 13px;
}
.step p {
  color: var(--ink-2);
  font-size: 16px;
}

/* Try / demo */
.try {
  background: var(--paper-2);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.demo {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.demo-chart {
  border-radius: 4px;
}
.demo-chart .inner {
  background: var(--card);
}
#demo-svg {
  width: 100%;
  height: auto;
  aspect-ratio: 1;
}
.demo-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: sticky;
  top: 96px;
}
.demo-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.demo-q {
  min-height: 2.3em;
}
.demo-hint {
  color: var(--ink-2);
  margin-top: -6px;
}
.demo-result {
  display: flex;
  flex-direction: column;
  gap: 14px;
  animation: rise 0.5s var(--ease);
}
.demo-result .rule-card {
  box-shadow: var(--shadow);
}
.demo-result .criteria {
  margin-top: 12px;
}
.demo-result .criteria li {
  font-size: 14.5px;
  padding: 9px 0;
}
.demo-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}
.tag.ok {
  background: var(--stbd);
  border-color: var(--stbd);
  color: #fff;
}
.tag.bad {
  background: var(--port);
  border-color: var(--port);
  color: #fff;
}

/* Demo chart SVG styling */
#demo-svg .deep {
  fill: var(--card);
}
#demo-svg .shoal {
  fill: var(--shoal);
}
#demo-svg .shoal-2 {
  fill: var(--shoal-2);
}
#demo-svg .land {
  fill: var(--land);
  stroke: var(--land-edge);
  stroke-width: 1.2;
}
#demo-svg .contour {
  fill: none;
  stroke: var(--sea);
  stroke-width: 0.8;
  opacity: 0.5;
}
#demo-svg .grid {
  stroke: var(--ink);
  stroke-width: 0.5;
  opacity: 0.12;
}
#demo-svg .sounding {
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  fill: var(--ink-2);
  opacity: 0.75;
}
#demo-svg .label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  fill: var(--ink-2);
  text-transform: uppercase;
}
#demo-svg .rose {
  fill: none;
  stroke: var(--ink);
  stroke-width: 0.8;
  opacity: 0.6;
}
#demo-svg .rose-n {
  fill: var(--ink);
  opacity: 0.7;
}
#demo-svg .course {
  stroke: var(--ink);
  stroke-width: 1;
  stroke-dasharray: 4 4;
  opacity: 0.5;
  fill: none;
}
#demo-svg .track {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
#demo-svg .track.you {
  stroke: var(--ink);
}
#demo-svg .track.other {
  stroke: var(--sea);
  stroke-dasharray: 1 5;
  stroke-width: 2.4;
}
#demo-svg .risk {
  fill: none;
  stroke: var(--port);
  stroke-width: 1.4;
  stroke-dasharray: 3 3;
  transform-box: fill-box;
  transform-origin: center;
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse {
  50% {
    transform: scale(1.25);
    opacity: 0.4;
  }
}
#demo-svg .cpa-line {
  stroke: var(--port);
  stroke-width: 1.2;
}
#demo-svg .cpa-line.ok {
  stroke: var(--stbd);
}
#demo-svg .cpa-text {
  font-family: var(--mono);
  font-size: 11px;
  fill: var(--ink);
}
#demo-svg .cpa-bg {
  fill: var(--card);
  stroke: var(--hair-2);
}
#demo-svg .boat-you {
  fill: var(--ink);
}
#demo-svg .boat-other {
  fill: var(--card);
  stroke: var(--ink);
  stroke-width: 1.6;
}
#demo-svg .sail {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.8;
  stroke-linecap: round;
}
#demo-svg .channel {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1;
  stroke-dasharray: 8 6;
  opacity: 0.5;
}
#demo-svg .wind {
  fill: var(--sea);
}

/* Correct — night */
.night {
  background: var(--night);
  color: var(--paper);
  overflow: hidden;
}
.night::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--night-hair) 1px, transparent 1px),
    linear-gradient(90deg, var(--night-hair) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at 70% 50%, black 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 70% 50%, black 10%, transparent 70%);
  opacity: 0.6;
}
.night .eyebrow,
.night .lede {
  color: rgba(244, 240, 230, 0.72);
}
.night .h1 em {
  color: var(--mark);
}
.correct-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.correct-grid > div:first-child {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.facts {
  margin: 12px 0 0;
  display: grid;
  gap: 0;
}
.facts div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--night-hair);
}
.facts dt {
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 11.5px;
  color: var(--mark);
  padding-top: 3px;
}
.facts dd {
  margin: 0;
  font-size: 15.5px;
  color: rgba(244, 240, 230, 0.85);
}
.debrief-card {
  background: var(--card);
  color: var(--ink);
  border-radius: var(--r-lg);
  padding: 26px 26px 20px;
  box-shadow: 0 50px 100px -40px rgba(0, 0, 0, 0.7);
}
.debrief-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--hair);
}
.debrief-head .mono {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.debrief-head .h3 {
  margin-top: 6px;
}
.debrief-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 6px;
  padding-top: 14px;
  border-top: 1px solid var(--hair);
}
.debrief-foot .mono {
  font-size: 12px;
}
.debrief-tip {
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  color: var(--sea);
}

/* Rules index */
.rules-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: clamp(40px, 6vw, 96px);
  align-items: start;
}
.rules-intro {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 110px;
}
.index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--ink);
}
.index li {
  display: grid;
  grid-template-columns: 72px auto 1fr auto;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--hair);
  transition: background 0.2s;
}
.index .n {
  color: var(--sea);
  font-size: 14px;
}
.index .t {
  font-family: var(--serif);
  font-size: clamp(22px, 2.4vw, 30px);
  font-variation-settings: "opsz" 72, "SOFT" 30;
  letter-spacing: -0.015em;
  line-height: 1.1;
}
.index .lead {
  border-bottom: 1.5px dotted var(--hair-2);
  transform: translateY(-5px);
  min-width: 20px;
}
.index .d {
  color: var(--ink-2);
  font-size: 15px;
  text-align: right;
  max-width: 260px;
}

/* Free sailing */
.free {
  padding-top: 0;
}
.free-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.free-card {
  margin: 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  aspect-ratio: 5 / 4;
  background: var(--sea);
}
.free-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 15% 8%;
  transition: transform 1.2s var(--ease);
}
.free-card:hover img {
  transform: scale(1.04);
}
.free-card figcaption {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 16px;
  padding: 16px 18px;
  border-radius: var(--r);
  background: rgba(251, 250, 246, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.free-card figcaption .mono {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.free-card figcaption .h3 {
  font-size: clamp(18px, 1.7vw, 22px);
}

/* Who */
.who {
  border-top: 1px solid var(--hair);
}
.who-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.who-item {
  padding: 0 32px;
  border-left: 1px solid var(--hair);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.who-item:first-child {
  padding-left: 0;
  border-left: 0;
}
.who-n {
  font-family: var(--serif);
  font-style: italic;
  font-size: 84px;
  line-height: 1;
  letter-spacing: -0.04em;
  font-variation-settings: "opsz" 144, "SOFT" 100;
  color: var(--sea);
  margin-bottom: 8px;
}
.who-item p {
  color: var(--ink-2);
}

/* Modules */
.modules {
  background: var(--paper-2);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
}
.mod-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--hair);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.mod {
  background: var(--paper-2);
  padding: 26px 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  min-height: 230px;
}
.mod.live {
  background: var(--card);
}
.mod-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
}
.mod-top .mono {
  color: var(--ink-3);
  font-size: 13px;
}
.mod p {
  color: var(--ink-2);
  font-size: 15.5px;
  max-width: 24em;
}
.mod:not(.live) .h3,
.mod:not(.live) p {
  opacity: 0.75;
}
.mod-art {
  width: 78px;
  height: 52px;
  margin-top: auto;
  padding-top: 8px;
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.5;
  stroke-linecap: round;
  color: var(--ink);
  overflow: visible;
}

/* Price */
.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 920px;
  margin: 0 auto;
}
.plan {
  background: var(--card);
  border: 1px solid var(--hair);
  border-radius: var(--r-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.plan.featured {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.plan-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--hair);
}
.plan.featured .plan-head {
  border-bottom-color: var(--night-hair);
}
.plan-title-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.plan-price {
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.plan-price .amt {
  font-family: var(--serif);
  font-size: 56px;
  font-variation-settings: "opsz" 144, "SOFT" 30;
  letter-spacing: -0.03em;
  line-height: 1;
}
.plan-price .per {
  font-family: var(--mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.plan.featured .per,
.plan.featured .plan-sub {
  color: rgba(244, 240, 230, 0.7);
}
.plan-sub {
  color: var(--ink-2);
}
.ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  font-size: 15.5px;
}
.ticks li {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 8px;
}
.ticks li::before {
  content: "";
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--stbd);
  border-bottom: 2px solid var(--stbd);
  transform: rotate(-45deg) translate(2px, 5px);
}
.plan.featured .ticks li::before {
  border-color: var(--mark);
}
.partners {
  max-width: 920px;
  margin: 20px auto 0;
  padding: 26px 30px;
  border: 1px dashed var(--hair-2);
  border-radius: var(--r-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
}
.partners > div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.partners .mono {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.partners p {
  color: var(--ink-2);
  font-size: 15.5px;
}

/* FAQ */
.faq {
  border-top: 1px solid var(--hair);
}
.faq-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.3fr;
  gap: clamp(32px, 6vw, 96px);
}
.faq-grid > div:first-child {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.faq-list {
  border-top: 2px solid var(--ink);
}
.faq-list details {
  border-bottom: 1px solid var(--hair);
}
.faq-list summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 44px 22px 0;
  font-family: var(--serif);
  font-size: clamp(19px, 1.8vw, 23px);
  font-variation-settings: "opsz" 48, "SOFT" 30;
  letter-spacing: -0.01em;
  position: relative;
}
.faq-list summary::-webkit-details-marker {
  display: none;
}
.faq-list summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 50%;
  translate: 0 -50%;
  font-family: var(--sans);
  font-size: 24px;
  font-weight: 300;
  color: var(--sea);
  transition: rotate 0.25s var(--ease);
}
.faq-list details[open] summary::after {
  rotate: 45deg;
}
.faq-list details p {
  padding: 0 0 24px;
  color: var(--ink-2);
  max-width: 40em;
}

/* CTA */
.cta {
  position: relative;
  padding: clamp(90px, 12vw, 170px) 0;
  background:
    radial-gradient(ellipse 60% 70% at 50% 110%, rgba(42, 96, 132, 0.32), transparent 70%),
    var(--shoal);
  overflow: hidden;
}
.cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-radial-gradient(circle at 50% 120%, transparent 0 38px, rgba(23, 53, 79, 0.1) 38px 39px);
  pointer-events: none;
}
.cta-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}
.cta .display em {
  color: var(--sea-deep);
}
.cta .field {
  width: 100%;
  margin-top: 8px;
}
.cta-done {
  font-family: var(--serif);
  font-size: 22px;
  font-style: italic;
  color: var(--sea-deep);
}

/* Footer */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding: 64px 0 32px;
  overflow: hidden;
}
.footer-mark {
  color: var(--paper);
  font-size: clamp(80px, 40vw, 540px);
  letter-spacing: -0.045em;
  line-height: 0.85;
  margin-left: -0.04em;
}
.footer-row {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  justify-content: space-between;
  border-top: 1px solid var(--night-hair);
  padding-top: 22px;
}
.footer .dim {
  color: rgba(244, 240, 230, 0.6);
  font-size: 12.5px;
  text-decoration: none;
}
.footer a.dim:hover {
  color: var(--paper);
}

/* ---------- Responsive ---------- */

@media (max-width: 1020px) {
  .nav-links {
    display: none;
  }
  .nav-end {
    margin-left: auto;
  }
  .hero-grid,
  .demo,
  .correct-grid,
  .rules-grid,
  .faq-grid,
  .section-head.split {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    min-height: 0;
    padding: 10px 0 40px;
  }
  .hero-rule {
    left: auto;
    right: calc(50% + 60px);
  }
  .steps {
    grid-template-columns: 1fr 1fr;
    gap: 36px 20px;
  }
  .demo-panel,
  .rules-intro {
    position: static;
  }
  .mod-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  body {
    font-size: 16px;
  }
  .nav-row {
    height: 62px;
  }
  .nav-mark {
    font-size: 26px;
  }
  .nav-end .btn {
    display: none;
  }
  .hero-ctas .btn {
    flex: 1;
  }
  .phone {
    width: 260px;
    height: 540px;
    border-radius: 44px;
  }
  .phone-screen {
    border-radius: 34px;
  }
  .hero-rule {
    position: relative;
    left: auto;
    right: auto;
    top: auto;
    bottom: auto;
    width: 100%;
    max-width: 340px;
    margin: -30px auto 0;
  }
  .ui-b {
    font-size: 11.5px;
    gap: 4px;
  }
  .hero-visual {
    flex-direction: column;
    align-items: center;
  }
  .steps,
  .free-grid,
  .who-grid,
  .mod-grid,
  .price-grid {
    grid-template-columns: 1fr;
  }
  .who-grid {
    gap: 40px;
  }
  .who-item,
  .who-item:first-child {
    padding: 0;
    border-left: 0;
  }
  .free-card {
    aspect-ratio: 4 / 5;
  }
  .index li {
    grid-template-columns: 62px 1fr;
    gap: 4px 10px;
  }
  .index .lead {
    display: none;
  }
  .index .d {
    grid-column: 2;
    text-align: left;
  }
  .facts div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .partners {
    flex-direction: column;
    align-items: flex-start;
  }
  .helm-btn {
    padding: 10px;
  }
  .helm-btn .v {
    font-size: 14px;
  }
  .plan {
    padding: 24px;
  }
}