@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@500;700;800;900&display=swap");

:root {
  --ink: #0a0a0b;
  --ink-soft: #25262a;
  --paper: #f4f3ee;
  --white: #fff;
  --steel: #b7bec8;
  --steel-light: #e7e9ec;
  --signal: #0878ed;
  --signal-dark: #0052ae;
  --yellow: #58c8ff;
  --blue: #174fda;
  --green: #168bc8;
  --cyan: #8ee7ff;
  --text: #121316;
  --muted: #53565c;
  --shell: min(1180px, calc(100% - 52px));
  --shadow: 12px 14px 0 rgba(10, 10, 11, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--paper);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", system-ui, sans-serif;
  font-weight: 700;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

::selection {
  color: var(--white);
  background: var(--signal);
}

.speed-rider-theme {
  min-width: 320px;
  padding-top: 78px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(10, 10, 11, 0.025) 25%, transparent 25%) 0 0 / 14px 14px,
    var(--paper);
}

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

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

/* Header */
.site-header {
  display: grid;
  z-index: 50;
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 78px;
  padding: 0 max(24px, calc((100vw - 1380px) / 2));
  color: var(--white);
  border-bottom: 0;
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.045) 0 2px, transparent 2px 12px),
    var(--ink);
  box-shadow: 0 7px 0 rgba(0, 0, 0, 0.18);
}

.site-header::after {
  display: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.08rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.brand-icon {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  object-fit: cover;
}

.brand-mark {
  display: grid;
  position: relative;
  place-items: center;
  width: 48px;
  height: 48px;
  color: var(--ink);
  background: var(--white);
  clip-path: polygon(10% 0, 100% 0, 100% 82%, 84% 100%, 0 100%, 0 16%);
}

.brand-mark::before {
  position: absolute;
  inset: 4px;
  border: 2px solid var(--ink);
  content: "";
  clip-path: inherit;
}

.brand-mark b {
  z-index: 1;
  font-size: 0.78rem;
  font-weight: 900;
}

.brand-mark i {
  display: none;
}

.site-header nav {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 3vw, 46px);
}

.site-header nav a {
  position: relative;
  padding-block: 9px;
  font-size: 0.87rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.site-header nav a::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 3px;
  background: var(--signal);
  content: "";
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.site-header nav a:hover::after,
.site-header nav a:focus-visible::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  color: var(--white);
  border: 2px solid var(--white);
  background: var(--signal);
  font-size: 0.8rem;
  font-weight: 900;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

.header-badge i {
  color: var(--yellow);
  font-style: normal;
}

/* Hero */
.sky-hero {
  position: relative;
  width: 100%;
  min-height: 0;
  height: clamp(340px, 34vw, 540px);
  overflow: hidden;
  background: #1986de;
}

.sky-hero::before {
  z-index: 3;
  position: absolute;
  inset: 0;
  border: 11px solid var(--ink);
  border-top-width: 11px;
  content: "";
  pointer-events: none;
  clip-path: none;
}

.sky-hero::after {
  display: none;
}

.sky-hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 46%;
}

.sky-hero-image-desktop {
  display: block;
}

.sky-hero-image-mobile {
  display: none;
}

.hero-burst {
  display: none;
}

.hero-burst i {
  position: absolute;
  top: 12%;
  right: -5%;
  width: 32%;
  height: 5px;
  background: var(--white);
  opacity: 0.55;
  transform: rotate(-9deg);
}

.hero-burst i:nth-child(2) {
  top: 21%;
  width: 22%;
  height: 3px;
}

.hero-burst i:nth-child(3) {
  top: auto;
  right: auto;
  bottom: 16%;
  left: -2%;
  width: 25%;
  background: var(--yellow);
}

.hero-burst i:nth-child(4) {
  top: auto;
  right: auto;
  bottom: 8%;
  left: 6%;
  width: 18%;
  height: 3px;
  background: var(--signal);
}

.hero-speed {
  display: none;
}

.hero-speed i {
  display: block;
  height: 5px;
  margin-bottom: 7px;
  background: var(--white);
}

.hero-speed i:nth-child(2) {
  width: 74%;
  margin-left: auto;
  background: var(--yellow);
}

.hero-speed i:nth-child(3) {
  width: 45%;
  margin-left: auto;
  background: var(--signal);
}

.hero-title {
  display: flex;
  z-index: 5;
  position: absolute;
  top: 50%;
  left: 50%;
  flex-direction: column;
  align-items: center;
  width: min(94%, 1560px);
  margin: 0;
  color: var(--white);
  font-size: clamp(2.7rem, 5.4vw, 6.9rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.075em;
  text-align: center;
  text-shadow: 0.06em 0.075em 0 rgba(5, 18, 43, 0.88);
  transform: translate(-50%, -50%) skewX(-4deg) rotate(-0.7deg);
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

.hero-title span:last-child {
  margin-top: 0.08em;
  font-size: 1.28em;
}

/* Intro */
.intro-section {
  display: grid;
  position: relative;
  grid-template-columns: 1.1fr 1fr 0.72fr;
  align-items: center;
  gap: clamp(34px, 4.8vw, 76px);
  padding-block: 108px 122px;
}

.intro-section::before {
  z-index: -1;
  position: absolute;
  inset: 30px -8vw 28px;
  border: 5px solid var(--ink);
  background:
    radial-gradient(circle, rgba(10, 10, 11, 0.13) 1.5px, transparent 1.7px) 0 0 / 16px 16px,
    var(--white);
  content: "";
  clip-path: polygon(3% 0, 100% 0, 97% 100%, 0 96%);
  box-shadow: var(--shadow);
}

.intro-section::after {
  display: none;
}

.section-label {
  display: inline-flex;
  align-items: stretch;
  margin: 0 0 24px;
  border: 3px solid var(--ink);
  background: var(--white);
  font-size: 0.8rem;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, calc(100% - 9px) 100%, 0 100%);
}

.section-label b {
  padding: 11px 15px;
  color: var(--white);
  background: var(--signal);
  font-weight: 900;
}

.section-label span {
  padding: 11px 20px 11px 15px;
}

.intro-copy h2,
.section-heading-row h2,
.risk-layout h2,
.offline-band h2,
.final-cta h2 {
  margin: 0;
  font-size: clamp(2.4rem, 4.3vw, 4.8rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.065em;
}

.intro-copy h2 em {
  color: var(--signal);
  font-style: normal;
  text-decoration: underline;
  text-decoration-color: var(--yellow);
  text-decoration-thickness: 10px;
  text-underline-offset: -3px;
}

.intro-copy > p:last-child {
  max-width: 590px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 2;
}

.intro-devices {
  position: relative;
  min-height: 610px;
}

.intro-devices::before {
  position: absolute;
  right: 3%;
  bottom: 2%;
  width: 88%;
  height: 18%;
  background: rgba(10, 10, 11, 0.2);
  content: "";
  filter: blur(20px);
  transform: skewX(-14deg);
}

.intro-phone {
  position: absolute;
  overflow: hidden;
  border: 0;
  border-radius: 38px;
  background: var(--ink);
  box-shadow: 0 0 0 7px var(--ink), 14px 18px 0 rgba(10, 10, 11, 0.18);
  line-height: 0;
  transition: transform 180ms ease;
}

.intro-phone::after {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 255, 255, 0.22);
  border-radius: inherit;
  content: "";
  pointer-events: none;
}

.intro-phone img {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  object-fit: contain;
  object-position: center;
}

.intro-phone-main {
  top: 0;
  left: 0;
  width: 58%;
  aspect-ratio: 591 / 1280;
  transform: rotate(-4deg);
}

.intro-phone-lock {
  right: 0;
  bottom: 0;
  width: 49%;
  aspect-ratio: 591 / 1280;
  transform: rotate(5deg);
}

.intro-devices:hover .intro-phone-main {
  transform: translateY(-7px) rotate(-5deg);
}

.intro-devices:hover .intro-phone-lock {
  transform: translateY(-7px) rotate(6deg);
}

.store-card {
  position: relative;
  padding: 26px 20px 24px;
  overflow: hidden;
  color: var(--white);
  border: 5px solid var(--ink);
  background:
    linear-gradient(var(--signal), var(--signal)) top / 100% 9px no-repeat,
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0 2px, transparent 2px 10px),
    var(--ink-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.store-card::before {
  display: none;
}

.store-card > p:first-child {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 0.78rem;
}

.store-card > p:first-child b {
  color: var(--yellow);
  font-size: 1rem;
}

.qr-slot {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  width: min(100%, 240px);
  height: auto;
  margin-inline: auto;
  padding: 0;
  overflow: hidden;
  border: 0;
  background: transparent;
  line-height: 0;
}

.qr-slot img {
  display: block;
  width: 100% !important;
  height: 100% !important;
  aspect-ratio: 1;
  object-fit: cover;
}

.store-card h3 {
  margin: 18px 0 0;
  color: var(--yellow);
  font-size: 1.1rem;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 5px;
}

.store-note {
  margin: 10px 0 0;
  color: #d7d9dd;
  font-size: 0.72rem;
  line-height: 1.7;
  text-align: center;
}

.compatibility {
  display: block;
  margin-top: 16px;
  padding: 8px 10px;
  color: var(--ink);
  background: var(--yellow);
  font-size: 0.72rem;
  text-align: center;
  clip-path: polygon(7px 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
}

/* Discipline */
.discipline-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(11px, 2vw, 30px);
  min-height: 98px;
  padding: 20px 26px;
  color: var(--white);
  border-block: 8px solid var(--ink);
  background:
    repeating-linear-gradient(120deg, rgba(255, 255, 255, 0.08) 0 2px, transparent 2px 12px),
    var(--signal);
}

.discipline-bar span {
  padding: 6px 10px;
  color: var(--ink);
  background: var(--yellow);
  font-size: 0.74rem;
  clip-path: polygon(5px 0, 100% 0, calc(100% - 5px) 100%, 0 100%);
}

.discipline-bar b {
  font-size: clamp(1.08rem, 2vw, 1.55rem);
  font-weight: 900;
}

.discipline-bar i {
  width: 30px;
  height: 4px;
  background: var(--white);
  transform: skewX(-30deg);
}

/* Shared headings */
.section-index {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 42px;
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.section-index span {
  display: grid;
  place-items: center;
  width: 58px;
  height: 40px;
  color: var(--white);
  background: var(--ink);
  font-size: 1rem;
  clip-path: polygon(9px 0, 100% 0, calc(100% - 9px) 100%, 0 100%);
}

.section-kicker {
  margin: 0 0 16px;
  color: var(--signal);
  font-size: 0.94rem;
  font-weight: 900;
  letter-spacing: 0.08em;
}

.section-heading-row {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: end;
  gap: 8vw;
}

.section-heading-row > p {
  max-width: 470px;
  margin: 0 0 8px;
  font-size: 1rem;
  line-height: 2;
}

/* Risk */
.risk-section {
  position: relative;
  padding-block: 130px 150px;
  color: var(--white);
}

.risk-section::before {
  z-index: -1;
  position: absolute;
  inset: 36px -12vw 30px;
  border-block: 7px solid var(--ink);
  background:
    repeating-linear-gradient(125deg, rgba(0, 0, 0, 0.08) 0 3px, transparent 3px 15px),
    var(--signal);
  content: "";
  clip-path: polygon(0 7%, 98% 0, 100% 92%, 3% 100%);
}

.risk-section::after {
  display: none;
}

.risk-section .section-index span {
  color: var(--ink);
  background: var(--yellow);
}

.risk-layout {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  align-items: center;
  gap: 9vw;
}

.risk-layout .section-kicker {
  color: var(--yellow);
}

.risk-copy {
  position: relative;
  padding: 40px 42px;
  overflow: hidden;
  color: var(--ink);
  border: 5px solid var(--ink);
  background:
    linear-gradient(var(--yellow), var(--yellow)) left / 13px 100% no-repeat,
    var(--white);
  box-shadow: 13px 15px 0 var(--ink);
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

.risk-copy::before {
  display: none;
}

.risk-copy p {
  margin: 0;
  font-size: 1.04rem;
  line-height: 2.1;
}

/* Flow */
.flow-section {
  position: relative;
  margin-top: -28px;
  padding-block: 140px 155px;
  color: var(--white);
  border-block: 9px solid var(--ink);
  background:
    linear-gradient(115deg, transparent 0 74%, rgba(8, 120, 237, 0.42) 74% 100%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.045) 0 2px, transparent 2px 14px),
    #17181c;
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
}

.flow-speed-lines {
  display: none;
}

.flow-speed-lines i {
  display: block;
  height: 6px;
  margin-bottom: 13px;
  background: var(--signal);
  transform: skewX(-28deg);
}

.flow-speed-lines i:nth-child(2) {
  width: 74%;
  margin-left: auto;
  background: var(--yellow);
}

.flow-speed-lines i:nth-child(3) {
  width: 48%;
  margin-left: auto;
  background: var(--white);
}

.section-index-white span {
  color: var(--ink);
  background: var(--yellow);
}

.light-kicker {
  color: var(--yellow);
}

.flow-section .section-heading-row > p {
  color: #d9dbdf;
}

.flow-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 18px;
  margin: 72px 0 0;
  padding: 10px 0 0;
  list-style: none;
  counter-reset: flow;
}

.flow-list li {
  position: relative;
  min-height: 310px;
  padding: 74px 24px 28px;
  color: var(--ink);
  border: 5px solid var(--ink);
  background: var(--white);
  box-shadow: 8px 10px 0 rgba(255, 255, 255, 0.14);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 0 100%);
}

.flow-list li:nth-child(2) {
  background: #dff3ff;
}

.flow-list li:nth-child(3) {
  background: #dce8ff;
}

.flow-list li:nth-child(4) {
  background: #d9f5ff;
}

.flow-list li:nth-child(5) {
  color: var(--white);
  background: var(--signal);
}

.flow-list li > span {
  display: grid;
  position: absolute;
  top: -5px;
  left: -5px;
  place-items: center;
  width: 72px;
  height: 58px;
  color: var(--white);
  border: 5px solid var(--ink);
  background: var(--signal);
  font-size: 1.18rem;
  font-weight: 900;
  clip-path: polygon(0 0, 100% 0, calc(100% - 15px) 100%, 0 100%);
}

.flow-list li:nth-child(5) > span {
  color: var(--ink);
  background: var(--yellow);
}

.flow-list h3 {
  margin: 0 0 18px;
  font-size: 1.23rem;
  font-weight: 900;
  line-height: 1.5;
}

.flow-list p {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  line-height: 1.85;
}

/* Features */
.features-section {
  position: relative;
  padding-block: 135px 150px;
}

.features-section::before {
  z-index: -1;
  position: absolute;
  inset: 20px -8vw 24px;
  background:
    repeating-linear-gradient(135deg, rgba(10, 10, 11, 0.05) 0 2px, transparent 2px 13px),
    #e2e4e7;
  content: "";
  clip-path: polygon(0 0, 100% 3%, 97% 100%, 2% 97%);
}

.section-heading-dark h2 {
  color: var(--ink);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  margin-top: 72px;
}

.feature-grid article {
  --feature-accent: var(--signal);
  position: relative;
  min-height: 270px;
  padding: 46px 48px 38px 128px;
  overflow: hidden;
  border: 5px solid var(--ink);
  background:
    linear-gradient(var(--feature-accent), var(--feature-accent)) left / 18px 100% no-repeat,
    var(--white);
  box-shadow: var(--shadow);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.feature-grid article::before {
  display: none;
}

.feature-grid article:nth-child(2) {
  --feature-accent: var(--yellow);
}

.feature-grid article:nth-child(3) {
  --feature-accent: var(--blue);
}

.feature-grid article:nth-child(4) {
  --feature-accent: var(--green);
}

.feature-grid article > span {
  display: grid;
  position: absolute;
  top: 45px;
  left: 38px;
  place-items: center;
  width: 70px;
  height: 52px;
  color: var(--white);
  background: var(--ink);
  font-size: 0.72rem;
  font-weight: 900;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.feature-grid h3 {
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 2.1vw, 2.2rem);
  font-weight: 900;
}

.feature-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.95;
}

/* Screens */
.screens-section {
  position: relative;
  padding-block: 150px 170px;
  color: var(--white);
  border-block: 8px solid var(--ink);
  background:
    radial-gradient(circle at 15% 10%, rgba(255, 255, 255, 0.13) 0 2px, transparent 3px) 0 0 / 21px 21px,
    var(--signal);
  clip-path: polygon(0 2.7%, 100% 0, 100% 97%, 0 100%);
}

.screens-section::before {
  display: none;
}

.screens-section .section-index span {
  color: var(--ink);
  background: var(--yellow);
}

.screens-section .section-kicker {
  color: var(--yellow);
}

.screens-section .section-heading-dark h2 {
  color: var(--white);
}

.screens-section .section-heading-row > p {
  color: #e8f4ff;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  margin-top: 82px;
}

.screens-grid figure {
  margin: 0;
}

.screens-grid figure > div {
  overflow: hidden;
  aspect-ratio: 591 / 1280;
  border: 0;
  border-radius: 36px;
  background: var(--ink);
  box-shadow: 0 0 0 7px var(--ink), 10px 14px 0 rgba(10, 10, 11, 0.28);
  line-height: 0;
}

.screens-grid figure img {
  width: 100%;
  height: 100%;
  border-radius: 34px;
  object-fit: contain;
  object-position: center;
}

.screens-grid figcaption {
  position: relative;
  min-height: 112px;
  margin-top: 17px;
  padding: 20px 18px 18px 58px;
  color: var(--ink);
  border: 4px solid var(--ink);
  background: var(--white);
  font-size: 0.82rem;
  line-height: 1.65;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 15px), calc(100% - 15px) 100%, 0 100%);
}

.screens-grid figcaption span {
  display: grid;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  place-items: center;
  width: 44px;
  color: var(--white);
  background: var(--ink);
  font-size: 0.78rem;
  writing-mode: horizontal-tb;
}

.screens-grid figcaption b {
  display: block;
  color: var(--signal);
  font-size: 1.1rem;
  font-weight: 900;
}

/* Offline */
.offline-band {
  display: grid;
  position: relative;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 60px;
  width: var(--shell);
  margin: 100px auto 120px;
  padding: 62px 74px;
  color: var(--ink);
  border: 7px solid var(--ink);
  background:
    repeating-linear-gradient(135deg, rgba(10, 10, 11, 0.055) 0 2px, transparent 2px 12px),
    var(--yellow);
  box-shadow: 16px 18px 0 var(--ink);
  clip-path: polygon(0 0, calc(100% - 48px) 0, 100% 48px, 100% 100%, 48px 100%, 0 calc(100% - 48px));
}

.offline-copy > span {
  display: inline-block;
  margin-bottom: 15px;
  padding: 8px 15px;
  color: var(--white);
  background: var(--signal);
  font-size: 0.8rem;
  clip-path: polygon(7px 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
}

.offline-band h2 {
  font-size: clamp(2rem, 3.5vw, 3.7rem);
}

.offline-band p {
  margin: 24px 0 0;
  font-size: 1rem;
  line-height: 1.9;
}

.offline-band strong {
  display: grid;
  place-items: center;
  width: 160px;
  height: 160px;
  padding: 7px;
  color: var(--white);
  border: 0;
  background: var(--ink);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
  transform: rotate(4deg);
  clip-path: polygon(50% 0, 93% 20%, 100% 69%, 73% 100%, 20% 94%, 0 52%, 19% 11%);
}

.offline-band strong span {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  background: var(--signal);
  clip-path: polygon(50% 0, 93% 20%, 100% 69%, 73% 100%, 20% 94%, 0 52%, 19% 11%);
}

/* Banner */
.promo-banner {
  margin-block: 100px 130px;
}

.promo-banner a {
  display: block;
  overflow: hidden;
  border: 7px solid var(--ink);
  background: var(--white);
  box-shadow: 16px 18px 0 var(--signal);
  clip-path: polygon(0 0, calc(100% - 38px) 0, 100% 38px, 100% 100%, 38px 100%, 0 calc(100% - 38px));
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.promo-banner a:hover,
.promo-banner a:focus-visible {
  box-shadow: 8px 10px 0 var(--signal);
  transform: translate(8px, 8px);
}

.promo-banner img {
  width: 100%;
  height: auto;
}

.promo-banner-note {
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.2vw, 1.08rem);
  font-weight: 800;
  letter-spacing: 0.03em;
  text-align: center;
}

/* CTA */
.final-cta {
  display: grid;
  position: relative;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 70px;
  margin-bottom: 120px;
  padding: 76px 86px;
  color: var(--white);
  border: 7px solid var(--ink);
  background:
    linear-gradient(115deg, transparent 0 63%, rgba(8, 120, 237, 0.9) 63% 100%),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0 2px, transparent 2px 13px),
    #18191d;
  box-shadow: 17px 19px 0 var(--yellow);
  clip-path: polygon(0 0, calc(100% - 48px) 0, 100% 48px, 100% 100%, 48px 100%, 0 calc(100% - 48px));
}

.final-cta > div > p {
  margin: 0 0 16px;
  color: var(--yellow);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.final-cta h2 {
  font-size: clamp(2.5rem, 4.4vw, 4.8rem);
}

.final-cta h2 em {
  color: var(--yellow);
  font-style: normal;
}

.app-store-button {
  display: inline-block;
  margin-top: 38px;
  padding: 18px 34px;
  color: var(--white);
  border: 3px solid var(--white);
  background: var(--signal);
  font-size: 1rem;
  font-weight: 900;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: color 160ms ease, background 160ms ease;
}

.app-store-button:hover,
.app-store-button:focus-visible {
  color: var(--ink);
  background: var(--yellow);
}

.final-qr {
  display: grid;
  place-items: center;
  aspect-ratio: 1 / 1;
  width: 260px;
  height: auto;
  padding: 0;
  overflow: hidden;
  border: 6px solid var(--ink);
  background: var(--white);
  box-shadow: 10px 12px 0 var(--ink);
  line-height: 0;
}

.final-qr img {
  display: block;
  width: 100% !important;
  height: 100% !important;
  aspect-ratio: 1;
  object-fit: cover;
}

/* Safety + footer */
.safety {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 26px;
  margin-bottom: 90px;
  padding: 30px 36px;
  border: 4px solid var(--ink);
  background: var(--white);
  clip-path: polygon(0 0, 100% 0, calc(100% - 18px) 100%, 0 100%);
}

.safety span {
  align-self: start;
  padding: 9px 14px;
  color: var(--white);
  background: var(--signal);
  font-size: 0.78rem;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.safety p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.9;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 34px;
  padding: 64px max(26px, calc((100vw - 1180px) / 2)) 42px;
  color: var(--white);
  border-top: 10px solid var(--signal);
  background:
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.045) 0 2px, transparent 2px 13px),
    var(--ink);
}

.footer-brand {
  color: var(--white);
}

.site-footer > div > p {
  margin: 20px 0 0 60px;
  color: var(--steel);
  font-size: 0.82rem;
}

.site-footer nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.82rem;
}

.site-footer nav a {
  border-bottom: 2px solid var(--signal);
}

.site-footer small {
  grid-column: 1 / -1;
  padding-top: 26px;
  color: #90949b;
  border-top: 1px solid #3e4045;
  font-size: 0.72rem;
}

/* Legal pages */
.legal-page {
  min-height: 100vh;
  padding: 80px 24px;
  background:
    repeating-linear-gradient(135deg, rgba(10, 10, 11, 0.04) 0 2px, transparent 2px 13px),
    var(--steel-light);
}

.legal-card {
  width: min(920px, 100%);
  margin-inline: auto;
  padding: clamp(36px, 6vw, 72px);
  border: 6px solid var(--ink);
  background: var(--white);
  box-shadow: 16px 18px 0 var(--signal);
  clip-path: polygon(0 0, calc(100% - 36px) 0, 100% 36px, 100% 100%, 36px 100%, 0 calc(100% - 36px));
}

.legal-kicker {
  display: inline-block;
  margin: 0 0 20px;
  padding: 8px 14px;
  color: var(--white);
  background: var(--signal);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}

.legal-card h1 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.05em;
}

.legal-updated,
.legal-lead {
  margin: 20px 0 45px;
  color: var(--muted);
  line-height: 1.9;
}

.legal-card section {
  margin-top: 42px;
}

.legal-card section h2,
.safety-note h2 {
  margin: 0 0 17px;
  padding-left: 16px;
  border-left: 9px solid var(--signal);
  font-size: 1.35rem;
  font-weight: 900;
}

.legal-card section p,
.legal-card li,
.safety-note p {
  color: var(--muted);
  line-height: 2;
}

.legal-card a {
  color: var(--signal-dark);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.safety-note {
  margin-top: 48px;
  padding: 28px 30px;
  border: 4px solid var(--ink);
  background: #dff3ff;
}

.support-mail {
  display: inline-block;
  margin-top: 16px;
  padding: 16px 24px;
  color: var(--white) !important;
  border: 3px solid var(--ink);
  background: var(--signal);
  font-weight: 900;
  text-decoration: none !important;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 30px;
  margin-top: 54px;
  padding-top: 25px;
  border-top: 3px solid var(--ink);
}

/* Keep panels rectangular: no cut-off corners on boxes or cards. */
.brand-mark,
.header-badge,
.intro-section::before,
.section-label,
.store-card,
.compatibility,
.discipline-bar span,
.section-index span,
.risk-section::before,
.risk-copy,
.flow-section,
.flow-list li,
.flow-list li > span,
.features-section::before,
.feature-grid article,
.feature-grid article > span,
.screens-section,
.screens-grid figcaption,
.offline-band,
.offline-copy > span,
.promo-banner a,
.final-cta,
.app-store-button,
.safety,
.safety span,
.legal-card,
.support-mail {
  clip-path: none;
}

.brand-mark,
.header-badge,
.section-label,
.compatibility,
.discipline-bar span,
.section-index span,
.flow-list li > span,
.feature-grid article > span,
.offline-copy > span,
.app-store-button,
.safety span,
.support-mail {
  border-radius: 7px;
}

.store-card,
.risk-copy,
.flow-list li,
.feature-grid article,
.screens-grid figcaption,
.offline-band,
.promo-banner a,
.final-cta,
.safety,
.legal-card {
  border-radius: 14px;
}

/* Responsive */
@media (max-width: 1050px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .hero-title span:first-child {
    font-size: clamp(2.75rem, 6vw, 4.2rem) !important;
  }

  .hero-title span:last-child {
    font-size: clamp(3.5rem, 8.5vw, 5.5rem) !important;
  }

  .site-header nav {
    display: none;
  }

  .intro-section {
    grid-template-columns: 1fr 1fr;
  }

  .intro-copy {
    grid-column: 1 / -1;
    max-width: 760px;
  }

  .intro-devices {
    min-height: 650px;
  }

  .flow-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .flow-list li:nth-child(4),
  .flow-list li:nth-child(5) {
    grid-column: span 1;
  }

  .screens-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 44px 32px;
  }
}

@media (max-width: 760px) {
  :root {
    --shell: min(100% - 28px, 680px);
  }

  html {
    scroll-padding-top: 70px;
  }

  .speed-rider-theme {
    padding-top: 68px;
  }

  .site-header {
    min-height: 68px;
    padding-inline: 14px;
  }

  .brand {
    gap: 9px;
    font-size: 0.84rem;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .brand-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
  }

  .brand-mark b {
    font-size: 0.66rem;
  }

  .header-badge {
    padding: 10px 12px;
    font-size: 0.65rem;
  }

  .sky-hero {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 9;
  }

  .sky-hero::before {
    border-width: 6px;
    border-top-width: 6px;
  }

  .sky-hero::after {
    height: 12px;
  }

  .sky-hero-image-desktop {
    display: none;
  }

  .sky-hero-image-mobile {
    display: block;
  }

  .hero-speed {
    right: 17px;
    bottom: 18px;
    height: 30px;
  }

  .hero-title {
    width: 94%;
    font-size: clamp(1.65rem, 7.6vw, 2.35rem);
    line-height: 1;
    letter-spacing: -0.07em;
    text-shadow: 0.055em 0.07em 0 rgba(5, 18, 43, 0.88);
  }

  .hero-title span:first-child {
    font-size: clamp(1.5rem, 7.5vw, 2.35rem) !important;
  }

  .hero-title span:last-child {
    font-size: clamp(2rem, 10.5vw, 3.15rem) !important;
  }

  .hero-speed i {
    height: 3px;
    margin-bottom: 5px;
  }

  .intro-section {
    grid-template-columns: 1fr;
    gap: 48px;
    padding-block: 84px 94px;
  }

  .intro-section::before {
    inset: 24px -5vw 20px;
    border-width: 4px;
    clip-path: polygon(3% 0, 100% 0, 97% 100%, 0 98%);
  }

  .intro-section::after {
    top: 21px;
    right: -5vw;
    height: 10px;
  }

  .section-label {
    margin-bottom: 20px;
    font-size: 0.7rem;
  }

  .section-label b,
  .section-label span {
    padding-block: 9px;
  }

  .intro-copy h2,
  .section-heading-row h2,
  .risk-layout h2 {
    font-size: clamp(2.1rem, 10vw, 3.45rem);
  }

  .intro-copy h2 em {
    text-decoration-thickness: 7px;
  }

  .intro-copy > p:last-child {
    margin-top: 23px;
    font-size: 0.93rem;
    line-height: 1.9;
  }

  .intro-devices {
    width: min(100%, 470px);
    min-height: 550px;
    margin-inline: auto;
  }

  .intro-phone {
    border-radius: 30px;
    box-shadow: 0 0 0 5px var(--ink), 10px 13px 0 rgba(10, 10, 11, 0.18);
  }

  .intro-phone img {
    border-radius: 28px;
  }

  .intro-phone-main {
    width: 58%;
  }

  .intro-phone-lock {
    width: 49%;
  }

  .store-card {
    width: min(100%, 390px);
    margin-inline: auto;
  }

  .discipline-bar {
    flex-wrap: wrap;
    gap: 8px 12px;
    min-height: 114px;
    padding-inline: 14px;
  }

  .discipline-bar i {
    width: 17px;
  }

  .discipline-bar b {
    font-size: 0.98rem;
  }

  .section-index {
    margin-bottom: 30px;
  }

  .risk-section {
    padding-block: 105px 125px;
  }

  .risk-section::before {
    inset: 24px -8vw 20px;
    clip-path: polygon(0 4%, 100% 0, 100% 96%, 2% 100%);
  }

  .risk-layout,
  .section-heading-row {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .risk-copy {
    padding: 33px 27px 33px 35px;
    box-shadow: 9px 11px 0 var(--ink);
  }

  .risk-copy p {
    font-size: 0.94rem;
  }

  .flow-section {
    padding-block: 116px 132px;
    clip-path: polygon(0 1%, 100% 0, 100% 99%, 0 100%);
  }

  .flow-speed-lines {
    top: 48px;
    width: 44%;
  }

  .flow-list {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 50px;
  }

  .flow-list li {
    min-height: 0;
    padding: 66px 26px 28px;
  }

  .features-section {
    padding-block: 112px 128px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    gap: 23px;
    margin-top: 50px;
  }

  .feature-grid article {
    min-height: 0;
    padding: 37px 28px 32px 96px;
  }

  .feature-grid article > span {
    top: 36px;
    left: 25px;
    width: 58px;
    height: 46px;
  }

  .feature-grid h3 {
    font-size: 1.52rem;
  }

  .screens-section {
    padding-block: 120px 140px;
    clip-path: polygon(0 1%, 100% 0, 100% 99%, 0 100%);
  }

  .screens-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px 14px;
    margin-top: 54px;
  }

  .screens-grid figure > div {
    border-radius: 25px;
    box-shadow: 0 0 0 5px var(--ink), 6px 8px 0 rgba(10, 10, 11, 0.28);
  }

  .screens-grid figure img {
    border-radius: 23px;
  }

  .screens-grid figcaption {
    min-height: 108px;
    padding: 16px 12px 15px 43px;
    font-size: 0.7rem;
  }

  .screens-grid figcaption span {
    width: 33px;
  }

  .screens-grid figcaption b {
    font-size: 0.96rem;
  }

  .offline-band {
    grid-template-columns: 1fr;
    gap: 38px;
    width: min(100% - 28px, 680px);
    margin-block: 80px 96px;
    padding: 48px 29px;
    box-shadow: 9px 11px 0 var(--ink);
    clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
  }

  .offline-band h2 {
    font-size: clamp(1.9rem, 9vw, 3rem);
  }

  .offline-band strong {
    width: 130px;
    height: 130px;
    margin-inline: auto;
    font-size: 1.7rem;
  }

  .promo-banner {
    margin-block: 78px 100px;
  }

  .promo-banner a {
    border-width: 5px;
    box-shadow: 9px 11px 0 var(--signal);
    clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  }

  .final-cta {
    grid-template-columns: 1fr;
    gap: 50px;
    margin-bottom: 90px;
    padding: 52px 28px;
    box-shadow: 9px 11px 0 var(--yellow);
    clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 30px 100%, 0 calc(100% - 30px));
  }

  .final-cta h2 {
    font-size: clamp(2.25rem, 10vw, 3.5rem);
  }

  .final-qr {
    width: min(260px, 84%);
    margin-inline: auto;
  }

  .safety {
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: 70px;
    padding: 26px 24px;
  }

  .safety span {
    justify-self: start;
  }

  .site-footer {
    grid-template-columns: 1fr;
    padding-inline: 24px;
  }

  .site-footer nav {
    flex-wrap: wrap;
  }

  .site-footer > div > p {
    margin-left: 50px;
  }

  .legal-page {
    padding: 34px 14px;
  }

  .legal-card {
    padding: 36px 24px 46px;
    border-width: 4px;
    box-shadow: 9px 11px 0 var(--signal);
    clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
  }
}

@media (max-width: 430px) {
  .header-badge i {
    display: none;
  }

  .header-badge {
    padding-inline: 9px;
    font-size: 0.58rem;
  }

  .intro-devices {
    min-height: 480px;
  }

  .screens-grid figcaption {
    min-height: 118px;
  }
}

/* Responsive rules must never reintroduce clipped card corners. */
.brand-mark,
.header-badge,
.intro-section::before,
.section-label,
.store-card,
.compatibility,
.discipline-bar span,
.section-index span,
.risk-section::before,
.risk-copy,
.flow-section,
.flow-list li,
.flow-list li > span,
.features-section::before,
.feature-grid article,
.feature-grid article > span,
.screens-section,
.screens-grid figcaption,
.offline-band,
.offline-copy > span,
.promo-banner a,
.final-cta,
.app-store-button,
.safety,
.safety span,
.legal-card,
.support-mail {
  clip-path: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}