/* Tical website. Plain CSS, no build step. */

:root {
  color-scheme: light dark;

  --bg: #ffffff;
  --bg-soft: #f6f5fc;
  --card: #ffffff;
  --card-border: rgba(20, 16, 60, 0.08);
  --text: #1d1d1f;
  --text-2: #55555e;
  --text-3: #86868f;
  --brand: #5c45db;
  --brand-strong: #4a33c8;
  --brand-soft: #efebff;
  --on-brand: #ffffff;
  --glow-violet: rgba(124, 99, 247, 0.30);
  --glow-pink: rgba(255, 95, 130, 0.18);
  --glow-blue: rgba(40, 140, 255, 0.16);
  --shadow: 0 30px 60px -28px rgba(40, 24, 130, 0.45), 0 12px 24px -16px rgba(40, 24, 130, 0.25);
  --bezel: linear-gradient(150deg, #34343a, #0e0e11 60%);
  --bezel-edge: rgba(0, 0, 0, 0.35);
  --header-bg: rgba(255, 255, 255, 0.72);

  --tile-blue: #2f7cf6;
  --tile-orange: #f5822f;
  --tile-purple: #7c5cf5;
  --tile-green: #2cb25a;
  --tile-pink: #ec3f78;
  --tile-teal: #139ba1;

  --radius: 24px;
  --max: 1120px;
  --gutter: 24px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b10;
    --bg-soft: #121219;
    --card: #17171f;
    --card-border: rgba(255, 255, 255, 0.08);
    --text: #f5f5f7;
    --text-2: #a8a8b3;
    --text-3: #75757f;
    --brand: #9d8bff;
    --brand-strong: #b3a4ff;
    --brand-soft: #1f1a3a;
    --on-brand: #120d2e;
    --glow-violet: rgba(124, 99, 247, 0.30);
    --glow-pink: rgba(255, 95, 130, 0.14);
    --glow-blue: rgba(40, 140, 255, 0.12);
    --shadow: 0 30px 60px -24px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.06);
    --bezel: linear-gradient(150deg, #4a4a52, #16161a 60%);
    --bezel-edge: rgba(255, 255, 255, 0.14);
    --header-bg: rgba(11, 11, 16, 0.7);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 6px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 16px;
  top: 12px;
  z-index: 100;
  background: var(--card);
  padding: 8px 14px;
}

.wrap {
  width: min(var(--max), 100% - 2 * var(--gutter));
  margin-inline: auto;
}

h1,
h2,
h3 {
  line-height: 1.1;
  letter-spacing: -0.022em;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", var(--font);
}

h2 {
  font-size: clamp(2rem, 4.2vw, 3rem);
  font-weight: 700;
}

h3 {
  font-size: 1.2rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

p {
  margin: 0;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand);
}

.lead {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  color: var(--text-2);
  line-height: 1.5;
}

.section {
  padding-block: clamp(72px, 10vw, 128px);
}

.section-soft {
  background: var(--bg-soft);
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(40px, 6vw, 64px);
  display: grid;
  gap: 14px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--card-border);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 1.1rem;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 30px;
  height: 30px;
}

.site-nav {
  display: flex;
  gap: 26px;
  font-size: 0.92rem;
}

.site-nav a {
  color: var(--text-2);
}

.site-nav a:hover {
  color: var(--text);
  text-decoration: none;
}

@media (max-width: 760px) {
  .site-nav .optional {
    display: none;
  }
}

/* Buttons */

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 10px 22px;
  text-align: center;
  text-wrap: balance;
  line-height: 1.25;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background-color 0.15s ease;
}

.button:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.button-primary {
  background: var(--brand);
  color: var(--on-brand);
  box-shadow: 0 10px 24px -12px var(--brand);
}

.button-primary:hover {
  background: var(--brand-strong);
}

.button-quiet {
  color: var(--text);
  background: var(--card);
  border-color: var(--card-border);
}

.button[aria-disabled="true"] {
  cursor: default;
}

.button[aria-disabled="true"]:hover {
  transform: none;
}

.fine {
  font-size: 0.85rem;
  color: var(--text-3);
}

/* Hero */

.hero {
  position: relative;
  padding-block: clamp(48px, 7vw, 96px) clamp(64px, 8vw, 110px);
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -10% 0 0 0;
  z-index: -1;
  background:
    radial-gradient(42% 50% at 72% 42%, var(--glow-violet), transparent 70%),
    radial-gradient(28% 36% at 92% 72%, var(--glow-pink), transparent 70%),
    radial-gradient(30% 40% at 55% 85%, var(--glow-blue), transparent 70%);
  pointer-events: none;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: clamp(32px, 5vw, 64px);
}

.hero-copy {
  display: grid;
  gap: 22px;
  justify-items: start;
}

.hero-icon {
  width: 88px;
  height: 88px;
  filter: drop-shadow(0 16px 24px rgba(60, 40, 180, 0.35));
}

.hero h1 {
  font-size: clamp(3rem, 8vw, 5.4rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1;
}

.hero .lead {
  max-width: 34ch;
}

.hero-visual {
  --front-width: clamp(200px, 23vw, 290px);
  --back-width: clamp(180px, 20.5vw, 258px);
  position: relative;
  height: clamp(460px, 52vw, 640px);
}

.hero-visual .device {
  position: absolute;
  width: var(--front-width);
}

.hero-visual .back {
  left: 2%;
  top: 6%;
  transform: rotate(-7deg);
  width: var(--back-width);
  opacity: 0.96;
}

.hero-visual .front {
  right: 4%;
  top: 0;
  transform: rotate(3deg);
}

/* Sits on the front phone's left edge, pointing from the ticket to the pass. */
.hero-arrow {
  position: absolute;
  right: calc(4% + var(--front-width) - 29px);
  top: 40%;
  z-index: 3;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--on-brand);
  background: var(--brand);
  box-shadow: 0 12px 28px -8px var(--brand);
}

.chip {
  position: absolute;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  background: color-mix(in srgb, var(--card) 82%, transparent);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  backdrop-filter: blur(16px) saturate(160%);
  border: 1px solid var(--card-border);
  box-shadow: 0 14px 30px -18px rgba(20, 10, 80, 0.45);
  white-space: nowrap;
}

.chip svg {
  flex: none;
  color: var(--tile-green);
}

.hero-visual .chip-code {
  right: 0;
  bottom: 12%;
}

.hero-visual .chip-device {
  left: 6%;
  bottom: 4%;
}

@media (max-width: 900px) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    justify-items: center;
    text-align: center;
  }

  .hero .lead {
    margin-inline: auto;
  }

  .hero-copy .actions {
    justify-content: center;
  }

  .hero-arrow {
    width: 44px;
    height: 44px;
    right: calc(4% + var(--front-width) - 22px);
  }

  .hero-arrow svg {
    width: 20px;
    height: 20px;
  }

  .hero-visual {
    --front-width: 54%;
    --back-width: 48%;
    width: min(100%, 520px);
    margin-inline: auto;
    height: clamp(420px, 118vw, 600px);
  }
}

/* Phone mockups */

.device {
  padding: 3.1%;
  border-radius: 15.5% / 7.2%;
  background: var(--bezel);
  box-shadow: var(--shadow), inset 0 0 0 1px var(--bezel-edge);
}

.device img {
  width: 100%;
  border-radius: 13% / 6%;
  aspect-ratio: 1206 / 2622;
  background: #000;
}

/* Steps */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
  list-style: none;
  padding: 0;
  margin: 0;
}

.step {
  display: grid;
  gap: 18px;
  align-content: start;
}

.step .device {
  width: min(100%, 280px);
  margin: 0 auto 10px;
}

.step-number {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: var(--on-brand);
  font-weight: 700;
  font-size: 0.95rem;
}

.step p {
  color: var(--text-2);
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin-inline: auto;
    gap: 64px;
  }
}

/* Features */

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 26px;
  display: grid;
  gap: 12px;
  align-content: start;
}

.feature p {
  color: var(--text-2);
  font-size: 0.98rem;
}

.tile {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  margin-bottom: 4px;
}

.tile svg {
  width: 24px;
  height: 24px;
}

.tile-blue { background: var(--tile-blue); }
.tile-orange { background: var(--tile-orange); }
.tile-purple { background: var(--tile-purple); }
.tile-green { background: var(--tile-green); }
.tile-pink { background: var(--tile-pink); }
.tile-teal { background: var(--tile-teal); }

@media (max-width: 900px) {
  .features {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .features {
    grid-template-columns: 1fr;
  }
}

/* Split sections (Wallet) */

.split {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: clamp(40px, 6vw, 88px);
  align-items: center;
}

.split .device {
  width: min(100%, 300px);
  margin-inline: auto;
}

.split-copy {
  display: grid;
  gap: 22px;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
  counter-reset: step;
}

.checklist li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  align-items: start;
  color: var(--text-2);
}

.checklist li::before {
  counter-increment: step;
  content: counter(step);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
}

.note {
  border-radius: 18px;
  padding: 18px 20px;
  background: var(--brand-soft);
  color: var(--text);
  font-size: 0.97rem;
}

.note strong {
  font-weight: 650;
}

@media (max-width: 860px) {
  .split {
    grid-template-columns: 1fr;
  }
}

/* Privacy */

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.privacy-item {
  display: grid;
  gap: 10px;
  align-content: start;
}

.privacy-item p {
  color: var(--text-2);
  font-size: 0.98rem;
}

.privacy-item svg {
  width: 28px;
  height: 28px;
  color: var(--brand);
}

@media (max-width: 900px) {
  .privacy-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 520px) {
  .privacy-grid {
    grid-template-columns: 1fr;
  }
}

/* FAQ */

.faq {
  max-width: 780px;
  margin-inline: auto;
  display: grid;
  gap: 12px;
}

.faq details {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 0 22px;
}

.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 0;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

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

.faq summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-3);
  line-height: 1;
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

.faq details p {
  color: var(--text-2);
  padding-bottom: 20px;
}

.faq details p + p {
  margin-top: -8px;
}

/* Closing call to action */

.closing {
  text-align: center;
  display: grid;
  gap: 20px;
  justify-items: center;
}

.closing img {
  width: 104px;
  height: 104px;
  filter: drop-shadow(0 18px 28px rgba(60, 40, 180, 0.35));
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--card-border);
  padding-block: 40px 56px;
  font-size: 0.9rem;
  color: var(--text-3);
}

.site-footer .wrap {
  display: grid;
  gap: 18px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--text-2);
}

/* Document pages (privacy, support) */

.doc {
  max-width: 740px;
  padding-block: clamp(48px, 8vw, 96px);
}

.doc h1 {
  font-size: clamp(2.3rem, 5vw, 3.2rem);
  font-weight: 750;
  margin-bottom: 12px;
}

.doc h2 {
  font-size: 1.45rem;
  margin: 44px 0 12px;
}

.doc p,
.doc li {
  color: var(--text-2);
}

.doc p + p {
  margin-top: 14px;
}

.doc ul {
  padding-left: 1.2em;
  display: grid;
  gap: 8px;
}

.doc .summary {
  margin-top: 28px;
  font-size: 1.1rem;
  color: var(--text);
  background: var(--brand-soft);
  border-radius: 18px;
  padding: 20px 22px;
}

.doc .button {
  margin-top: 22px;
}

@media (max-width: 400px) {
  :root {
    --gutter: 16px;
  }

  .button {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button,
  .faq summary::after {
    transition: none;
  }
}