/* Hexoku — hexoku.com */
:root {
  --bg-deep: #0a0d14;
  --bg-card: rgba(18, 22, 34, 0.85);
  --border: rgba(102, 164, 246, 0.22);
  --text: #e8ecf4;
  --muted: #9aa7bd;
  --accent-a: #66a4f6;
  --accent-b: #d07cfe;
  --accent-warm: #f46a1d;
  --success: #00ff88;
  --radius: 14px;
  --font-sans: "Outfit", system-ui, sans-serif;
  --font-display: "Sora", var(--font-sans);
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --max: 1080px;
  --tap: 44px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(102, 164, 246, 0.18), transparent),
    radial-gradient(ellipse 80% 50% at 100% 50%, rgba(208, 124, 254, 0.08), transparent),
    radial-gradient(ellipse 60% 40% at 0% 80%, rgba(244, 106, 29, 0.06), transparent),
    repeating-linear-gradient(
      -25deg,
      transparent,
      transparent 40px,
      rgba(102, 164, 246, 0.02) 40px,
      rgba(102, 164, 246, 0.02) 41px
    );
}

a {
  color: var(--accent-a);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: #9ec4ff;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  padding: 0.75rem 1rem;
  background: var(--accent-a);
  color: #000;
  z-index: 9999;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(10, 13, 20, 0.82);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.65rem 1rem;
  padding: 0.65rem 0;
  max-width: var(--max);
  margin-inline: auto;
  width: min(100% - 2rem, var(--max));
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.82rem;
  font-weight: 700;
}

.lang-switch a {
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  text-decoration: none;
  color: var(--muted);
}

.lang-switch a:hover {
  color: var(--text);
}

.lang-switch .is-current {
  padding: 0.35rem 0.55rem;
  border-radius: 8px;
  background: rgba(102, 164, 246, 0.22);
  color: var(--text);
}

@media (min-width: 861px) {
  .nav-main {
    flex: 1 1 auto;
    min-width: 0;
  }

  .nav-main ul {
    justify-content: flex-end;
  }

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

@media (max-width: 860px) {
  .lang-switch {
    margin-left: auto;
  }
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.brand:hover {
  color: #fff;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  object-fit: contain;
  object-position: center;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: var(--tap);
  height: var(--tap);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin-inline: auto;
  background: var(--text);
  border-radius: 1px;
}

.nav-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.1rem;
  align-items: center;
}

.nav-main a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav-main a:hover,
.nav-main a[aria-current="page"] {
  color: var(--text);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: flex;
  }

  .nav-main {
    position: fixed;
    inset: 0 0 auto 0;
    top: 58px;
    max-height: 0;
    overflow: hidden;
    background: rgba(10, 13, 20, 0.97);
    border-bottom: 1px solid var(--border);
    transition: max-height 0.35s ease;
  }

  .nav-main.is-open {
    max-height: 420px;
  }

  .nav-main ul {
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.25rem;
    gap: 0;
  }

  .nav-main a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }
}

/* Hero */
.hero {
  padding: clamp(2rem, 6vw, 4rem) 0 3rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

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

  .store-row {
    justify-content: center;
  }

  .hero-visual {
    max-width: min(100%, 400px);
    margin-inline: auto;
  }
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.85rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 1rem;
  background: linear-gradient(120deg, #fff 0%, var(--accent-a) 45%, var(--accent-b) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 34ch;
  margin: 0 0 1.5rem;
}

.store-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: var(--tap);
  padding: 0.55rem 1.1rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--border);
  transition: transform 0.15s ease, border-color 0.15s, box-shadow 0.15s;
}

.btn-store:hover {
  transform: translateY(-2px);
  border-color: var(--accent-a);
  box-shadow: 0 8px 28px rgba(102, 164, 246, 0.2);
}

.btn-store.android {
  background: linear-gradient(145deg, #1a232e, #121820);
  color: #fff;
}

.btn-store.ios {
  background: linear-gradient(145deg, #2a2a2e, #121214);
  color: #fff;
}

.btn-store svg {
  flex-shrink: 0;
}

.hero-visual {
  position: relative;
}

.hero-visual .glow {
  position: absolute;
  inset: -15%;
  background: radial-gradient(circle, rgba(208, 124, 254, 0.35), transparent 65%);
  z-index: -1;
  pointer-events: none;
}

.hero-visual img {
  display: block;
  width: min(100%, 560px);
  height: auto;
  max-height: min(72vh, 560px);
  margin-inline: auto;
  object-fit: contain;
  object-position: center;
  filter: drop-shadow(var(--shadow));
  border-radius: 22px;
}

/* Sections */
section {
  padding: 2.5rem 0;
}

.section-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
  letter-spacing: -0.02em;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.card-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 0.85rem;
  border-radius: 12px;
  background: rgba(102, 164, 246, 0.12);
  padding: 8px;
  object-fit: contain;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 700px) {
  .gallery {
    grid-template-columns: 1fr;
  }
}

.gallery figure {
  margin: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.gallery figcaption {
  padding: 0.65rem 0.85rem;
  font-size: 0.88rem;
  color: var(--muted);
}

/* Content pages */
.page-main {
  padding: 2.5rem 0 4rem;
}

.page-main h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin: 0 0 1rem;
}

.page-main h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
}

.page-main p,
.page-main li {
  color: var(--muted);
}

.page-main ul {
  padding-left: 1.25rem;
}

.page-main li + li {
  margin-top: 0.35rem;
}

.prose {
  max-width: 65ch;
}

/* Forms */
.form-card {
  max-width: 520px;
  margin-top: 1.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.35);
  color: var(--text);
  font: inherit;
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: 2px solid var(--accent-a);
  outline-offset: 2px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 0 1.35rem;
  border: none;
  border-radius: 12px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  color: #0a0d14;
  background: linear-gradient(120deg, var(--accent-a), var(--accent-b));
  box-shadow: 0 10px 32px rgba(102, 164, 246, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.form-hint {
  font-size: 0.88rem;
  color: var(--muted);
  margin-top: 1rem;
}

/* App-only feedback panel */
.app-feedback {
  display: none;
  margin-bottom: 2rem;
  padding: 1.5rem;
  border-radius: var(--radius);
  border: 1px solid rgba(208, 124, 254, 0.45);
  background: linear-gradient(145deg, rgba(208, 124, 254, 0.12), rgba(102, 164, 246, 0.08));
}

body.show-app-feedback .app-feedback {
  display: block;
}

.app-feedback h2 {
  margin-top: 0;
  color: #fff;
}

.badge-app {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  background: var(--accent-warm);
  color: #0a0d14;
  margin-bottom: 0.75rem;
}

.support-default .when-no-app {
  display: block;
}

.support-default .when-app-main {
  display: none;
}

body.show-app-feedback.support-default .when-no-app {
  display: none;
}

body.show-app-feedback.support-default .when-app-main {
  display: block;
}

/* Footer */
.site-footer {
  margin-top: auto;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max);
  margin-inline: auto;
  width: min(100% - 2rem, var(--max));
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}

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

.footer-copy {
  font-size: 0.88rem;
  color: var(--muted);
}

.layout-stack {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}

.faq-item strong {
  color: var(--text);
}