/* AxelStack — shared styles */

:root {
  --bg: #0a0c10;
  --bg-elev: #12161d;
  --bg-card: #161b23;
  --border: #232a35;
  --text: #e7ecf3;
  --text-muted: #9aa6b8;
  --accent: #4f8cff;
  --accent-hover: #6ea0ff;
  --accent-soft: rgba(79, 140, 255, 0.12);
  --radius: 14px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--accent-hover);
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 12, 16, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

.brand:hover {
  color: var(--text);
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s ease, border-color 0.15s ease,
    transform 0.05s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--text);
}

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

.hero {
  position: relative;
  padding: 110px 0 90px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 500px;
  background: radial-gradient(
    circle,
    rgba(79, 140, 255, 0.18),
    transparent 70%
  );
  pointer-events: none;
}

.hero h1 {
  position: relative;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 0 0 20px;
  font-weight: 800;
}

.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent), #a07bff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  position: relative;
  max-width: 620px;
  margin: 0 auto 34px;
  font-size: 1.18rem;
  color: var(--text-muted);
}

.hero-actions {
  position: relative;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 22px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  color: var(--accent-hover);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

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

section {
  padding: 70px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin: 0 0 12px;
  letter-spacing: -0.02em;
}

.section-head p {
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* ---------- App cards ---------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.app-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.app-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  font-size: 1.7rem;
  margin-bottom: 18px;
}

.app-icon.duel {
  background: linear-gradient(135deg, #ff6b6b, #ffa94d);
}

.app-icon.calc {
  background: linear-gradient(135deg, #4f8cff, #38d39f);
}

/* Real app logos */
.app-icon.logo {
  width: 72px;
  height: 72px;
  padding: 0;
  background: none;
  border-radius: 16px;
  overflow: hidden;
}

.app-icon.logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.app-card h3 {
  margin: 0 0 6px;
  font-size: 1.4rem;
  letter-spacing: -0.01em;
}

.badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 11px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: rgba(255, 180, 60, 0.14);
  color: #ffc266;
  border: 1px solid rgba(255, 180, 60, 0.25);
}

.app-card p {
  color: var(--text-muted);
  margin: 0;
}

/* ---------- Feature row ---------- */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.feature h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}

.feature .ficon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

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

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px;
  text-align: center;
}

.cta-band h2 {
  margin: 0 0 12px;
  font-size: 1.8rem;
}

.cta-band p {
  color: var(--text-muted);
  margin: 0 0 26px;
}

/* ---------- Contact ---------- */

.contact-box {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 40px;
}

.contact-box .email {
  display: inline-block;
  margin: 14px 0 4px;
  font-size: 1.35rem;
  font-weight: 700;
}

.contact-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ---------- Page intro (sub pages) ---------- */

.page-intro {
  padding: 80px 0 30px;
  text-align: center;
}

.page-intro h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: 0 0 14px;
  letter-spacing: -0.02em;
}

.page-intro p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* ---------- Prose (about) ---------- */

.prose {
  max-width: 720px;
  margin: 0 auto;
}

.prose p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin: 0 0 20px;
}

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

.prose h3 {
  color: var(--text);
  font-size: 1.2rem;
  margin: 32px 0 10px;
  letter-spacing: -0.01em;
}

/* Clickable app cards */
a.app-card {
  display: block;
  color: inherit;
}

a.app-card:hover {
  color: inherit;
}

.app-card .card-cta {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
}

/* ---------- App store page ---------- */

.store-top {
  padding: 50px 0 10px;
}

.store-hero {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.store-hero-icon {
  width: 118px;
  height: 118px;
  border-radius: 26px;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--border);
}

.store-hero-icon img {
  width: 100%;
  height: 100%;
  display: block;
}

.store-hero-info {
  flex: 1;
  min-width: 260px;
}

.store-hero-info h1 {
  margin: 0 0 4px;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  letter-spacing: -0.02em;
}

.store-dev {
  font-weight: 600;
  color: var(--accent);
}

.store-sub {
  color: var(--text-muted);
  margin: 2px 0 0;
  font-size: 0.98rem;
}

.store-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
  padding: 5px 13px;
  border-radius: 999px;
  background: rgba(255, 180, 60, 0.14);
  color: #ffc266;
  border: 1px solid rgba(255, 180, 60, 0.25);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.store-status .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #ffc266;
}

/* Stat strip */
.store-stats {
  display: flex;
  flex-wrap: wrap;
  margin: 34px 0 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.store-stats .stat {
  flex: 1;
  min-width: 110px;
  text-align: center;
  padding: 18px 14px;
  border-right: 1px solid var(--border);
}

.store-stats .stat:last-child {
  border-right: none;
}

.store-stats .stat .val {
  font-weight: 700;
  font-size: 1.05rem;
}

.store-stats .stat .lbl {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-top: 4px;
}

.store-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Google Play badge */
.play-badge {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  background: #000;
  border: 1px solid #3a4150;
  border-radius: 11px;
  padding: 9px 20px 9px 16px;
  transition: border-color 0.15s ease, transform 0.05s ease;
}

.play-badge:hover {
  border-color: #5a667a;
}

.play-badge:active {
  transform: translateY(1px);
}

.play-badge svg {
  width: 27px;
  height: 27px;
  flex-shrink: 0;
}

.play-badge svg.apple-ic {
  width: 22px;
  height: 27px;
}

.play-badge .pb-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  text-align: left;
}

.play-badge .pb-small {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #fff;
}

.play-badge .pb-big {
  font-size: 1.18rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.01em;
}

.play-badge[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
}

.store-note {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Feature banner */
.feature-banner {
  margin: 14px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.feature-banner img {
  width: 100%;
  display: block;
}

/* Screenshot gallery */
.shots {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding: 6px 2px 16px;
  scroll-snap-type: x mandatory;
}

.shots img {
  height: 460px;
  width: auto;
  border-radius: 18px;
  border: 1px solid var(--border);
  scroll-snap-align: start;
  flex-shrink: 0;
}

.store-section h2 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
}

.store-desc {
  color: var(--text-muted);
  max-width: 760px;
}

.store-desc p {
  margin: 0 0 16px;
}

.store-desc h3 {
  color: var(--text);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  margin: 26px 0 10px;
}

.store-desc ul {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
}

.store-desc li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
}

.store-desc li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* Data safety */
.safety {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 30px;
}

.safety-row {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.safety-row:last-child {
  border-bottom: none;
}

.safety-row .ic {
  color: var(--accent);
  font-size: 1.1rem;
  flex-shrink: 0;
  line-height: 1.5;
}

.safety-row .txt strong {
  display: block;
  margin-bottom: 2px;
}

.safety-row .txt span {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Additional info */
.addl-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 22px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 30px;
}

.addl-info .k {
  color: var(--text-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 3px;
}

.addl-info .v {
  font-weight: 600;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 8px;
}

.back-link:hover {
  color: var(--text);
}

@media (max-width: 640px) {
  .shots img {
    height: 380px;
  }
  .store-hero-icon {
    width: 92px;
    height: 92px;
    border-radius: 20px;
  }
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  margin-top: 40px;
}

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

.footer-inner .muted {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
}

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

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

@media (max-width: 640px) {
  .nav-links {
    gap: 18px;
  }
  .nav-links a {
    font-size: 0.9rem;
  }
  .hero {
    padding: 80px 0 60px;
  }
  section {
    padding: 50px 0;
  }
  .cta-band {
    padding: 36px 24px;
  }
}