/* =========================================
   snekgame.io — style.css
   Matrix-themed app landing page
   ========================================= */

/* --- FONTS & RESET --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --green:        #00ff41;
  --green-dim:    #00c032;
  --green-glow:   #00ff4180;
  --green-faint:  #00ff410d;
  --red-accent:   #ff2a2a;
  --bg:           #020c02;
  --bg-card:      #040f04;
  --bg-card-border: #0d2b0d;
  --text:         #c8ffc8;
  --text-muted:   #4a7a4a;
  --font-mono:    'Share Tech Mono', monospace;
  --font-display: 'Orbitron', sans-serif;
  --nav-h:        68px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-mono);
  overflow-x: hidden;
  min-height: 100vh;
}

/* --- MATRIX RAIN CANVAS --- */
#matrix-rain {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.18;
  pointer-events: none;
}

/* --- UTILITY --- */
.accent { color: var(--green); }

/* --- NAV --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  background: rgba(2, 12, 2, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bg-card-border);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.nav-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  filter: drop-shadow(0 0 6px var(--green-glow));
}

.nav-logo-text {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--green); }

/* --- HERO --- */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 2rem 4rem;
  text-align: left;
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 5rem;
  max-width: 1000px;
  width: 100%;
}

.hero-logo-wrap {
  flex-shrink: 0;
}

.hero-logo {
  width: 260px;
  height: 260px;
  object-fit: contain;
  filter:
    drop-shadow(0 0 20px var(--green-glow))
    drop-shadow(0 0 60px #00ff4133);
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}

.hero-text {
  flex: 1;
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--green-dim);
  letter-spacing: 0.2em;
  margin-bottom: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.2s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  color: var(--text);
  letter-spacing: -0.01em;
  text-shadow: 0 0 30px var(--green-glow);
  margin-bottom: 1.25rem;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.35s forwards;
}

.hero-dot {
  color: var(--text-muted);
  font-size: 0.7em;
}

.hero-tagline {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.5s forwards;
}

.hero-tagline br { display: block; }

.cta-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s ease 0.65s forwards;
}

/* --- STORE BUTTONS --- */
.store-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-family: var(--font-mono);
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid;
  min-width: 170px;
}

.store-btn:hover {
  transform: translateY(-2px);
}

.ios-btn {
  background: var(--green);
  color: var(--bg);
  border-color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

.ios-btn:hover {
  box-shadow: 0 0 35px var(--green-glow), 0 0 70px #00ff4122;
}

.gplay-btn {
  background: transparent;
  color: var(--green);
  border-color: var(--bg-card-border);
  box-shadow: none;
}

.gplay-btn:hover {
  border-color: var(--green);
  box-shadow: 0 0 20px var(--green-glow);
}

.store-icon {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.store-btn-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.store-btn-text small {
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.store-btn-text {
  font-size: 0.9rem;
  font-weight: bold;
  letter-spacing: 0.05em;
}

/* --- SCROLL HINT --- */
.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* --- SECTIONS SHARED --- */
.section-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--green-dim);
  letter-spacing: 0.2em;
  margin-bottom: 0.6rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--text);
  letter-spacing: 0.04em;
  margin-bottom: 3rem;
  text-shadow: 0 0 20px var(--green-glow);
}

/* --- FEATURES --- */
.features {
  position: relative;
  z-index: 1;
  padding: 7rem 0;
  border-top: 1px solid var(--bg-card-border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--bg-card-border);
  border-radius: 10px;
  padding: 2rem 1.75rem;
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
}

.feature-card:hover {
  border-color: var(--green-dim);
  box-shadow: 0 0 30px var(--green-faint), inset 0 0 20px var(--green-faint);
  transform: translateY(-4px);
}

.feature-icon {
  width: 42px;
  height: 42px;
  color: var(--green);
  margin-bottom: 1.25rem;
  filter: drop-shadow(0 0 6px var(--green-glow));
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green);
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* --- SCREENSHOTS --- */
.screenshots {
  position: relative;
  z-index: 1;
  padding: 7rem 0;
  border-top: 1px solid var(--bg-card-border);
}

.screenshots-row {
  display: flex;
  gap: 1.5rem;
  align-items: flex-end;
  justify-content: center;
  flex-wrap: wrap;
}

.screenshot-frame {
  width: 200px;
  border: 1px solid var(--bg-card-border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  background: var(--bg-card);
}

.screenshot-frame.featured {
  width: 230px;
  border-color: var(--green-dim);
  box-shadow: 0 0 40px var(--green-glow);
  transform: translateY(-16px);
}

.screenshot-frame:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 30px var(--green-glow);
}

.screenshot-frame.featured:hover {
  transform: translateY(-22px);
}

.screenshot-placeholder {
  aspect-ratio: 9/19;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
  background: repeating-linear-gradient(
    0deg,
    var(--green-faint) 0px,
    var(--green-faint) 1px,
    transparent 1px,
    transparent 28px
  );
}

/* If using real images, replace placeholder with: */
.screenshot-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.ss-label {
  font-size: 0.62rem;
  color: var(--green-dim);
  letter-spacing: 0.1em;
}

.ss-hint {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
}

.screenshots-note {
  margin-top: 2.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

/* --- DOWNLOAD CTA SECTION --- */
.download-cta {
  position: relative;
  z-index: 1;
  padding: 8rem 0;
  border-top: 1px solid var(--bg-card-border);
  background: radial-gradient(ellipse 60% 50% at 50% 50%, #00ff410a 0%, transparent 70%);
}

.cta-center {
  text-align: center;
}

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

.cta-center .section-title {
  margin-bottom: 2.5rem;
}

/* --- FOOTER --- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--bg-card-border);
  padding: 3.5rem 0 2.5rem;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.footer-logo-img {
  width: 30px;
  height: 30px;
  object-fit: contain;
  filter: drop-shadow(0 0 5px var(--green-glow));
}

.footer-logo-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 0.72rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.footer-sub {
  color: #2a4a2a;
  font-size: 0.65rem;
}

/* --- ANIMATIONS --- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 2.5rem;
  }

  .hero-logo {
    width: 180px;
    height: 180px;
  }

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

  .nav-links {
    display: none;
  }

  .features-grid {
    grid-template-columns: 1fr 1fr;
  }

  .screenshots-row {
    gap: 1rem;
  }

  .screenshot-frame { width: 160px; }
  .screenshot-frame.featured { width: 180px; }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .store-btn { min-width: 150px; }
}