/* BOXFLUX landing page styles */

:root {
  --bg: #0b0e1a;
  --bg-alt: #10142a;
  --card: #151a33;
  --card-border: rgba(255, 255, 255, 0.08);
  --text: #eef1fb;
  --text-dim: #a9b0cc;
  --accent-orange: #ff9d2e;
  --accent-yellow: #ffd23f;
  --accent-green: #3ecf5b;
  --accent-green-dark: #22a83f;
  --accent-purple: #7c5cff;
  --accent-blue: #3ec6ff;
  --focus-ring: #ffd23f;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font-head: "Lilita One", "Baloo 2", "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans KR", "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Baloo 2", "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans KR", "Noto Sans JP", -apple-system, system-ui, sans-serif;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: inherit;
}

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 400;
  letter-spacing: 0.3px;
  margin: 0 0 0.5em;
}

p {
  margin: 0 0 1em;
  color: var(--text-dim);
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent-yellow);
  color: #14162b;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 100;
  font-weight: 700;
}
.skip-link:focus {
  left: 0;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 14, 26, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--card-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  border-radius: 9px;
  box-shadow: 0 0 0 1px var(--card-border);
}

.brand-word {
  font-family: var(--font-head);
  font-size: 1.3rem;
  color: #fff;
  letter-spacing: 0.5px;
}
.brand-word .accent {
  background: linear-gradient(180deg, var(--accent-yellow), var(--accent-orange));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.site-nav {
  display: none;
  align-items: center;
  gap: 26px;
  font-weight: 600;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.site-nav a:hover,
.site-nav a:focus-visible {
  color: #fff;
}

.nav-cta {
  background: linear-gradient(180deg, var(--accent-green), var(--accent-green-dark));
  color: #0a1c0e !important;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700;
}

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

.lang-picker {
  flex-shrink: 0;
}

.lang-select {
  background: var(--card) url("data:image/svg+xml;utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23a9b0cc'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E") no-repeat right 10px center / 16px;
  border: 1px solid var(--card-border);
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 700;
  padding: 8px 30px 8px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.85rem;
  letter-spacing: 0.2px;
  appearance: none;
  -webkit-appearance: none;
  max-width: 40vw;
}
.lang-select:hover {
  border-color: var(--accent-yellow);
}
.lang-select option {
  background: var(--card);
  color: var(--text);
}

@media (min-width: 480px) {
  .lang-select {
    max-width: none;
  }
}

@media (min-width: 760px) {
  .site-nav {
    display: flex;
  }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 56px 0 64px;
  overflow: hidden;
  background:
    radial-gradient(600px 400px at 15% 0%, rgba(124, 92, 255, 0.25), transparent 60%),
    radial-gradient(700px 500px at 90% 20%, rgba(62, 198, 255, 0.15), transparent 60%),
    var(--bg);
}

.hero-glow {
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 480px;
  background: radial-gradient(closest-side, rgba(255, 157, 46, 0.18), transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 36px;
  align-items: center;
  text-align: center;
}

.hero-logo {
  width: min(340px, 80vw);
  height: auto;
  margin: 0 auto 6px;
  filter: drop-shadow(0 8px 24px rgba(255, 157, 46, 0.35));
}

.tagline {
  font-family: var(--font-head);
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  color: var(--accent-yellow);
  margin: 0 0 14px;
  text-shadow: 0 0 24px rgba(255, 210, 63, 0.4);
}

.hero-desc {
  max-width: 46ch;
  margin: 0 auto 26px;
  font-size: 1.05rem;
  color: var(--text-dim);
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 700;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.btn-download {
  background: linear-gradient(180deg, #4be06a, var(--accent-green-dark));
  color: #062b0d;
  padding: 14px 28px;
  box-shadow: 0 10px 30px rgba(62, 207, 91, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  text-align: left;
}
.btn-download:hover {
  box-shadow: 0 14px 36px rgba(62, 207, 91, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn-download strong {
  display: block;
  font-size: 1.05rem;
  line-height: 1.15;
}
.btn-download small {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  opacity: 0.85;
}

.btn-lg {
  padding: 16px 32px;
}

.btn-ghost {
  background: transparent;
  border: 1.5px solid var(--card-border);
  color: var(--text-dim);
  padding: 12px 24px;
}
.btn-ghost:hover {
  border-color: var(--accent-blue);
  color: #fff;
}

.access-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}
@media (min-width: 900px) {
  .access-row {
    flex-direction: row;
    align-items: center;
    justify-content: flex-start;
  }
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  padding: 6px 16px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-size: 0.72rem;
  letter-spacing: 1.2px;
  color: var(--accent-yellow);
  background: rgba(255, 210, 63, 0.08);
  border: 1.5px solid rgba(255, 210, 63, 0.55);
  box-shadow: 0 0 14px rgba(255, 210, 63, 0.35), inset 0 0 10px rgba(255, 210, 63, 0.08);
}

.access-line {
  font-size: 0.92rem;
  color: var(--text-dim);
  font-weight: 600;
}

.hero-art {
  width: 100%;
  max-width: 520px;
}
.hero-art picture,
.hero-art img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55), 0 0 0 1px var(--card-border);
}

@media (min-width: 900px) {
  .hero-inner {
    flex-direction: row;
    text-align: left;
    align-items: center;
    gap: 48px;
  }
  .hero-logo {
    margin: 0 0 6px;
  }
  .hero-desc {
    margin: 0 0 26px;
  }
  .hero-ctas {
    align-items: flex-start;
  }
  .hero-copy {
    flex: 1 1 50%;
  }
  .hero-art {
    flex: 1 1 45%;
  }
}

/* ---------- Sections ---------- */
.section {
  padding: 64px 0;
}
.section-dark {
  background: var(--bg-alt);
}
.section h2 {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  text-align: center;
  color: #fff;
}
.section-sub {
  text-align: center;
  max-width: 46ch;
  margin: 0 auto 8px;
}

/* How to play */
.steps {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
  margin-top: 36px;
}
@media (min-width: 720px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}
.step {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  text-align: center;
}
.step-icon {
  font-size: 2.2rem;
  margin-bottom: 10px;
}
.step h3 {
  color: #fff;
  font-size: 1.15rem;
}
.step p {
  margin: 0;
  font-size: 0.95rem;
}

/* Gallery */
.gallery {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 30px 20px 10px;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.gallery::-webkit-scrollbar {
  height: 8px;
}
.gallery::-webkit-scrollbar-thumb {
  background: var(--card-border);
  border-radius: 8px;
}
.gallery figure {
  margin: 0;
  flex: 0 0 auto;
  scroll-snap-align: center;
  width: 220px;
}
.gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--card-border);
}
@media (min-width: 760px) {
  .gallery {
    justify-content: center;
    padding: 30px 0 10px;
  }
  .gallery figure {
    width: 230px;
  }
}

/* Features */
.features-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
  margin-top: 36px;
}
@media (min-width: 620px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1000px) {
  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}
.feature-card {
  background: linear-gradient(180deg, rgba(124, 92, 255, 0.08), rgba(21, 26, 51, 0.4));
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
}
.feature-icon {
  font-size: 2rem;
  margin-bottom: 8px;
}
.feature-card h3 {
  color: #fff;
  font-size: 1.05rem;
}
.feature-card p {
  font-size: 0.9rem;
  margin: 0;
}

/* Download */
.section-download {
  background:
    radial-gradient(500px 340px at 50% 0%, rgba(62, 207, 91, 0.14), transparent 65%),
    var(--bg-alt);
}
.download-wrap {
  text-align: center;
}
.download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  max-width: 460px;
  margin: 32px auto 0;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}
.download-card-icon img {
  border-radius: 20px;
  box-shadow: 0 8px 24px rgba(255, 157, 46, 0.35);
}
.download-meta {
  font-weight: 700;
  color: var(--text);
  margin: 0 0 14px;
}
@media (min-width: 560px) {
  .download-card {
    flex-direction: row;
    text-align: left;
  }
  .download-card-body {
    flex: 1;
  }
}

.install-steps {
  max-width: 560px;
  margin: 40px auto 0;
  text-align: left;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 26px 28px;
}
.install-steps h3 {
  color: #fff;
  font-size: 1.1rem;
  text-align: center;
}
.install-steps ol {
  padding-left: 20px;
  margin: 0 0 16px;
}
.install-steps li {
  margin-bottom: 8px;
  color: var(--text-dim);
}
.ios-note,
.test-note {
  font-size: 0.88rem;
  margin: 0;
}
.ios-note {
  color: var(--accent-blue);
}
.test-note {
  color: var(--text-dim);
  margin-top: 10px;
}
.test-note a {
  color: var(--accent-blue);
  font-weight: 700;
  text-decoration: none;
}
.test-note a:hover {
  text-decoration: underline;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 28px 0;
  background: var(--bg);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  text-align: center;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-dim);
}
.footer-brand img {
  border-radius: 7px;
}
.footer-links {
  display: flex;
  gap: 20px;
  font-size: 0.88rem;
}
.footer-links a {
  text-decoration: none;
  color: var(--text-dim);
}
.footer-links a:hover {
  color: var(--accent-yellow);
}
@media (min-width: 620px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ---------- Privacy page ---------- */
.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 70px 20px 90px;
}
.legal h1 {
  font-size: 2rem;
  color: #fff;
}
.legal h2 {
  font-size: 1.2rem;
  color: #fff;
  text-align: left;
  margin-top: 2em;
}
.legal p, .legal li {
  color: var(--text-dim);
}
.legal a {
  color: var(--accent-blue);
}
.legal .updated {
  font-size: 0.85rem;
  opacity: 0.7;
}
.back-link {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--accent-yellow);
  text-decoration: none;
  font-weight: 600;
}