/* ─────────────────────────────────────────────
   ReflexDuels — Marketing Website Styles
   Dark theme matching the iOS app
───────────────────────────────────────────── */

/* ── Design Tokens ── */
:root {
  --bg-primary: #020308;
  --bg-gradient: linear-gradient(155deg, #050B1E 0%, #08041C 55%, #020308 100%);
  --bg-card: rgba(255, 255, 255, 0.05);
  --border-card: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-muted: rgba(255, 255, 255, 0.4);
  --accent-cyan: #00D4FF;
  --accent-purple: #7C3AED;
  --accent-blue: #3B82F6;
  --accent-teal: #14B8A6;
  --accent-orange: #F97316;
  --accent-gold: #FCD34D;
  --accent-green: #22C55E;
  --accent-red: #EF4444;
  --font-main: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --nav-height: 64px;
  --max-width: 1200px;
}

/* ── Reset ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent-cyan);
  text-decoration: none;
  transition: opacity 0.2s;
}

a:hover {
  opacity: 0.8;
}

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

/* ── Section ── */
.section {
  padding: 80px 0;
  position: relative;
}

.section-title {
  font-size: 2rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: 48px;
  letter-spacing: -0.02em;
}

/* ── Glow Effects ── */
.glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

.glow--cyan {
  background: var(--accent-cyan);
  filter: blur(140px);
  opacity: 0.18;
}

.glow--purple {
  background: var(--accent-purple);
  filter: blur(120px);
  opacity: 0.15;
}

.glow--blue {
  background: var(--accent-blue);
  filter: blur(130px);
  opacity: 0.12;
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(2, 3, 8, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 1000;
  transition: background 0.3s;
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.nav__logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav__links {
  display: none;
  list-style: none;
  gap: 32px;
  align-items: center;
}

.nav__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--text-primary);
  opacity: 1;
}

.nav__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* ── Language Toggle ── */
.lang-toggle {
  display: flex;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.lang-toggle__btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.05em;
}

.lang-toggle__btn.active {
  background: var(--accent-cyan);
  color: #020308;
}

.lang-toggle__btn:hover:not(.active) {
  background: rgba(255, 255, 255, 0.08);
}

/* ── Hamburger ── */
.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translateY(5px) translateX(5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translateY(-5px) translateX(5px);
}

/* ── Mobile Nav Overlay ── */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(2, 3, 8, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  padding: 32px 24px;
}

.mobile-nav.open {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav a {
  color: var(--text-primary);
  font-size: 1.4rem;
  font-weight: 700;
}

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 40px);
  padding-bottom: 40px;
  position: relative;
  overflow: hidden;
  background: var(--bg-gradient);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 48px;
}

.hero__content {
  text-align: center;
  z-index: 1;
}

.hero__icon {
  width: 80px;
  height: 80px;
  border-radius: 18px;
  margin: 0 auto 24px;
  box-shadow: 0 8px 48px rgba(0, 212, 255, 0.28);
}

.hero__label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent-cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero__headline {
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1.05;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.7;
}

.hero__phone {
  z-index: 1;
  width: 260px;
  flex-shrink: 0;
}

/* ── App Store Badge ── */
.app-store-badge {
  display: inline-block;
  transition: transform 0.2s, opacity 0.2s;
}

.app-store-badge:hover {
  transform: scale(1.05);
  opacity: 1;
}

.app-store-badge img {
  height: 48px;
  width: auto;
}

/* ── Phone Mockup ── */
.phone-mockup {
  position: relative;
  flex-shrink: 0;
  width: 100%;
}

.phone-mockup__frame {
  display: block;
  width: 100%;
  height: auto;
  position: relative;
  z-index: 1;
}

.phone-mockup__screen {
  position: absolute;
  left: 5.09%;
  top: 2.21%;
  width: 89.82%;
  height: 95.58%;
  border-radius: 13.73% / 6.33%;
  overflow: hidden;
  z-index: 2;
}

.phone-mockup__screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
}

/* ── Game Modes ── */
.modes {
  background: var(--bg-primary);
}

.modes__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.mode-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform 0.3s, border-color 0.3s;
}

.mode-card:hover {
  transform: translateY(-4px);
}

.mode-card--solo {
  border-color: rgba(249, 115, 22, 0.2);
}

.mode-card--solo:hover {
  border-color: rgba(249, 115, 22, 0.4);
}

.mode-card--daily {
  border-color: rgba(252, 211, 77, 0.2);
}

.mode-card--daily:hover {
  border-color: rgba(252, 211, 77, 0.4);
}

.mode-card--versus {
  border-color: rgba(59, 130, 246, 0.2);
}

.mode-card--versus:hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.mode-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.mode-card__title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.mode-card--solo .mode-card__title { color: var(--accent-orange); }
.mode-card--daily .mode-card__title { color: var(--accent-gold); }
.mode-card--versus .mode-card__title { color: var(--accent-blue); }

.mode-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ── Screenshots Carousel ── */
.screenshots {
  background: var(--bg-gradient);
  overflow: hidden;
}

.carousel {
  position: relative;
}

.carousel__track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 0 24px 32px;
}

.carousel__track::-webkit-scrollbar {
  display: none;
}

.carousel__slide {
  scroll-snap-align: center;
  flex-shrink: 0;
  width: 200px;
}

.carousel__dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.carousel__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  padding: 0;
}

.carousel__dot.active {
  background: var(--accent-cyan);
  width: 24px;
  border-radius: 4px;
}

/* ── Features Grid ── */
.features {
  background: var(--bg-primary);
}

.features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 14px;
  padding: 24px;
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.feature-card__icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.feature-card__title {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.feature-card__desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Feature card accent colors via icon */
.feature-card--minigames .feature-card__title { color: var(--accent-green); }
.feature-card--zones .feature-card__title { color: var(--accent-orange); }
.feature-card--gamecenter .feature-card__title { color: var(--accent-purple); }
.feature-card--daily .feature-card__title { color: var(--accent-gold); }
.feature-card--leaderboards .feature-card__title { color: var(--accent-blue); }
.feature-card--design .feature-card__title { color: var(--accent-cyan); }

/* ── Download CTA ── */
.cta-section {
  background: var(--bg-gradient);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section__icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin: 0 auto 28px;
  box-shadow: 0 12px 60px rgba(0, 212, 255, 0.3);
}

.cta-section__tagline {
  font-size: 2.2rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.cta-section__subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

/* ── Footer ── */
.footer {
  background: var(--bg-primary);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 40px 0;
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
}

.footer__links a:hover {
  color: var(--text-primary);
}

.footer__tagline {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer__copyright {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* ── Scroll Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */

/* Tablet */
@media (min-width: 640px) {
  .section-title {
    font-size: 2.4rem;
  }

  .hero__headline {
    font-size: 3.4rem;
  }

  .hero__icon {
    width: 96px;
    height: 96px;
    border-radius: 22px;
  }

  .hero__phone {
    width: 300px;
  }

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

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .carousel__slide {
    width: 220px;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .section {
    padding: 100px 0;
  }

  .nav__links {
    display: flex;
  }

  .hamburger {
    display: none;
  }

  .hero__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .hero__content {
    text-align: left;
    max-width: 520px;
  }

  .hero__icon {
    margin: 0 0 24px;
  }

  .hero__subtitle {
    margin: 0 0 32px;
  }

  .hero__headline {
    font-size: 3.8rem;
  }

  .hero__phone {
    width: 320px;
  }

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

  .carousel__slide {
    width: 240px;
  }

  .cta-section__tagline {
    font-size: 2.6rem;
  }
}

/* Large Desktop */
@media (min-width: 1280px) {
  .hero__headline {
    font-size: 4.2rem;
  }

  .hero__phone {
    width: 360px;
  }

  .carousel__slide {
    width: 260px;
  }
}