/* swipetris landing — arcade cabinet in your pocket */

:root {
  --bg: #0f1115;
  --bg-deep: #090b0f;
  --panel: #151922;
  --line: #262c38;
  --ink: #e8ecf4;
  --dim: #8b93a7;
  --cyan: #22d3ee;
  --yellow: #facc15;
  --purple: #a855f7;
  --green: #4ade80;
  --red: #f87171;
  --blue: #3b82f6;
  --orange: #fb923c;
  --pixel: "Press Start 2P", monospace;
  --mono: "JetBrains Mono", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--mono);
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(34, 211, 238, 0.09), transparent 60%),
    radial-gradient(900px 600px at -10% 40%, rgba(168, 85, 247, 0.07), transparent 60%),
    radial-gradient(700px 500px at 60% 110%, rgba(250, 204, 21, 0.05), transparent 60%),
    var(--bg);
  color: var(--ink);
  min-height: 100dvh;
  overflow-x: hidden;
}

/* CRT scanlines + vignette over everything */
.scanlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  background:
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.14) 0 1px, transparent 1px 3px);
  mix-blend-mode: multiply;
}
.scanlines::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 100% at 50% 40%, transparent 55%, rgba(0, 0, 0, 0.4));
}

main { max-width: 1060px; margin: 0 auto; padding: 0 20px; }

/* ============ HERO ============ */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 44px;
  padding: 56px 0 40px;
  text-align: center;
}

.brand-block {
  --block: clamp(17px, 3.2vw, 24px);
  display: grid;
  grid-template-columns: repeat(3, var(--block));
  grid-template-rows: repeat(2, var(--block));
  gap: 2px;
  width: max-content;
  margin-bottom: 20px;
  animation: rise 0.7s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}
.brand-block i {
  display: block;
  border-radius: 4px;
  background: linear-gradient(135deg, #71f39e 0%, var(--green) 46%, #25b85d 100%);
  box-shadow: inset 2px 2px 0 rgba(255,255,255,.38), inset -3px -3px 0 rgba(0,0,0,.25), 0 4px 10px rgba(74,222,128,.18);
}
.brand-block i:nth-child(1) { grid-column: 2; }
.brand-block i:nth-child(2) { grid-column: 3; }
.brand-block i:nth-child(3) { grid-column: 1; grid-row: 2; }
.brand-block i:nth-child(4) { grid-column: 2; grid-row: 2; }

.logo {
  font-family: var(--pixel);
  font-size: clamp(22px, 6.4vw, 42px);
  letter-spacing: 0.04em;
  line-height: 1.3;
  animation: rise 0.7s 0.06s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}
.logo span { display: inline-block; }
.logo .l1 { color: var(--cyan);   text-shadow: 0 0 18px rgba(34, 211, 238, 0.55); }
.logo .l2 { color: var(--yellow); text-shadow: 0 0 18px rgba(250, 204, 21, 0.5); }
.logo .l3 { color: var(--purple); text-shadow: 0 0 18px rgba(168, 85, 247, 0.55); }
.logo .l4 { color: var(--green);  text-shadow: 0 0 18px rgba(74, 222, 128, 0.5); }
.logo .l5 { color: var(--red);    text-shadow: 0 0 18px rgba(248, 113, 113, 0.5); }
.logo .l6 { color: var(--blue);   text-shadow: 0 0 18px rgba(59, 130, 246, 0.55); }
.logo .l7 { color: var(--orange); text-shadow: 0 0 18px rgba(251, 146, 60, 0.5); }

.tagline {
  margin-top: 22px;
  font-family: var(--pixel);
  font-size: clamp(9px, 2.4vw, 12px);
  color: var(--dim);
  letter-spacing: 0.14em;
  animation: rise 0.7s 0.08s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

.sub {
  margin-top: 26px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
  animation: rise 0.7s 0.16s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 36px;
  font-family: var(--pixel);
  font-size: clamp(12px, 3vw, 15px);
  color: #0c0d10;
  background: var(--yellow);
  text-decoration: none;
  padding: 18px 30px;
  border: 3px solid #0c0d10;
  transition: transform 0.12s ease, background 0.12s ease;
  animation: rise 0.7s 0.24s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}
.cta svg { width: 1.05em; height: 1.05em; fill: currentColor; flex: 0 0 auto; }
.cta:hover { transform: translateY(-1px); background: #ffe05a; }
.cta:active { transform: translateY(1px); }
.cta:focus-visible { outline: 3px solid var(--cyan); outline-offset: 4px; }

.cta-note {
  margin-top: 16px;
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 0.08em;
  animation: rise 0.7s 0.3s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

/* gesture legend */
.gestures {
  display: flex;
  gap: clamp(18px, 5vw, 40px);
  margin-top: 46px;
  justify-content: center;
  animation: rise 0.7s 0.38s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}
.gesture { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.g-label { font-size: 11px; color: var(--dim); line-height: 1.6; letter-spacing: 0.06em; }
.g-label em { font-style: normal; color: var(--ink); font-weight: 700; }

.glyph {
  position: relative;
  width: 52px;
  height: 52px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  overflow: hidden;
}
.glyph i {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  left: 50%;
  top: 50%;
  margin: -5px 0 0 -5px;
}
.glyph-drag i { animation: gDrag 1.8s ease-in-out infinite; }
@keyframes gDrag {
  0%, 100% { transform: translateX(-13px); }
  50% { transform: translateX(13px); }
}
.glyph-tap i { animation: gTap 1.6s ease infinite; }
.glyph-tap i::after {
  content: "";
  position: absolute;
  inset: -6px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  opacity: 0;
  animation: gRing 1.6s ease infinite;
}
@keyframes gTap { 0%, 100% { transform: scale(1); } 12% { transform: scale(0.6); } 30% { transform: scale(1); } }
@keyframes gRing { 0% { transform: scale(0.4); opacity: 0.9; } 45% { transform: scale(1.8); opacity: 0; } 100% { opacity: 0; } }
.glyph-flick i { animation: gFlick 1.5s cubic-bezier(0.6, 0, 0.9, 0.4) infinite; }
@keyframes gFlick {
  0% { transform: translateY(-16px); opacity: 0; }
  18% { opacity: 1; }
  48% { transform: translateY(18px); opacity: 1; }
  60%, 100% { transform: translateY(20px); opacity: 0; }
}

/* ============ PHONE ============ */
.phone-wrap {
  position: relative;
  animation: rise 0.9s 0.2s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}
.phone {
  position: relative;
  width: min(300px, 76vw);
  aspect-ratio: 9 / 19;
  background: #05070a;
  border: 3px solid #2b3140;
  border-radius: 46px;
  padding: 11px;
  box-shadow:
    0 0 0 1px rgba(0, 0, 0, 0.8),
    0 24px 70px rgba(0, 0, 0, 0.6),
    0 0 90px rgba(34, 211, 238, 0.12);
  animation: floaty 7s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(-1.2deg); }
  50% { transform: translateY(-10px) rotate(-1.2deg); }
}
.phone-shadow {
  width: 60%;
  height: 18px;
  margin: 26px auto 0;
  border-radius: 50%;
  background: radial-gradient(50% 50% at 50% 50%, rgba(0, 0, 0, 0.55), transparent 70%);
  animation: shadowPulse 7s ease-in-out infinite;
}
@keyframes shadowPulse {
  0%, 100% { transform: scaleX(1); opacity: 1; }
  50% { transform: scaleX(0.88); opacity: 0.7; }
}
.island {
  position: absolute;
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  width: 34%;
  height: 22px;
  background: #000;
  border-radius: 999px;
  z-index: 3;
}
.screen {
  width: 100%;
  height: 100%;
  border-radius: 36px;
  background:
    radial-gradient(120% 70% at 50% 0%, rgba(34, 211, 238, 0.07), transparent 55%),
    var(--bg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}
.screen::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.1) 0 1px, transparent 1px 3px);
}

.demo-hud {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 56px 18px 8px;
}
.demo-score span {
  display: block;
  font-family: var(--pixel);
  font-size: 6px;
  color: var(--dim);
  margin-bottom: 5px;
  letter-spacing: 0.12em;
}
.demo-score b {
  font-family: var(--pixel);
  font-size: 12px;
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(34, 211, 238, 0.6);
}
.demo-hiscore { text-align: right; }
.demo-hiscore span {
  display: block;
  font-family: var(--pixel);
  font-size: 6px;
  color: var(--dim);
  letter-spacing: 0.1em;
  margin-bottom: 5px;
}
.demo-hiscore b {
  font-family: var(--pixel);
  font-size: 9px;
  color: var(--yellow);
  letter-spacing: 0.04em;
}

.demo-stage {
  flex: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px 0 16px;
}

#demo-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 2px;
  width: 72%;
  aspect-ratio: 8 / 13;
  transition: opacity 0.45s ease;
  transform: perspective(700px) rotateX(4deg); /* echo the game's 3D camera */
}
#demo-board.fade { opacity: 0; }
#demo-board .cell {
  border-radius: 2.5px;
  background: rgba(255, 255, 255, 0.035);
}
/* bevelled like the game's rounded 3D blocks */
#demo-board .cell.on {
  border-radius: 3px;
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.42), rgba(255, 255, 255, 0.06) 46%, rgba(0, 0, 0, 0.3));
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.4), inset 0 -3px 0 rgba(0, 0, 0, 0.35), 0 2px 5px rgba(0, 0, 0, 0.35);
}
#demo-board .cell.c-I { background: var(--cyan); }
#demo-board .cell.c-O { background: var(--yellow); }
#demo-board .cell.c-T { background: var(--purple); }
#demo-board .cell.c-S { background: var(--green); }
#demo-board .cell.c-Z { background: var(--red); }
#demo-board .cell.c-J { background: var(--blue); }
#demo-board .cell.c-L { background: var(--orange); }
#demo-board .cell.clearing { animation: cellClear 0.3s ease both; }
@keyframes cellClear {
  0% { filter: brightness(3); }
  100% { filter: brightness(3); transform: scale(0.1); opacity: 0; }
}

/* fake thumb */
#demo-thumb {
  position: absolute;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 34%, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.12) 70%);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  opacity: 0;
  z-index: 4;
  pointer-events: none;
  transition: left 0.42s cubic-bezier(0.3, 0, 0.3, 1), top 0.3s ease, opacity 0.22s ease, transform 0.15s ease;
  transform: translate(-50%, -50%);
}
#demo-thumb.show { opacity: 0.92; }
#demo-thumb.press { transform: translate(-50%, -50%) scale(0.72); }
#demo-thumb.flicking { transition: left 0.42s, top 0.16s cubic-bezier(0.5, 0, 1, 0.6), opacity 0.22s ease; }
#demo-thumb::after {
  content: "";
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.7);
  opacity: 0;
}
#demo-thumb.ripple::after { animation: gRing 0.5s ease both; }

#demo-pops {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  z-index: 5;
}
.demo-pop {
  position: absolute;
  font-family: var(--pixel);
  font-size: 11px;
  color: var(--yellow);
  text-shadow: 0 0 12px rgba(250, 204, 21, 0.8);
  animation: popRise 1s ease-out both;
}
.demo-pop.big { font-size: 14px; color: var(--cyan); text-shadow: 0 0 16px rgba(34, 211, 238, 0.9); }
@keyframes popRise {
  0% { transform: translateY(14px) scale(0.6); opacity: 0; }
  20% { transform: translateY(0) scale(1.1); opacity: 1; }
  75% { opacity: 1; }
  100% { transform: translateY(-26px) scale(1); opacity: 0; }
}

/* ============ MARQUEE ============ */
.marquee {
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
  overflow: hidden;
  padding: 13px 0;
  margin: 26px -20px 0;
}
.marquee-track {
  display: inline-flex;
  white-space: nowrap;
  animation: marquee 26s linear infinite;
}
.marquee-track span {
  font-family: var(--pixel);
  font-size: 9px;
  color: var(--dim);
  letter-spacing: 0.18em;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ============ FEATURES ============ */
.features { padding: 58px 0 10px; }

.section-label {
  font-family: var(--pixel);
  font-size: clamp(11px, 3vw, 14px);
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(34, 211, 238, 0.45);
  letter-spacing: 0.12em;
  margin-bottom: 30px;
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 55%), var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px 22px;
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 22px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.5), transparent);
}
.card h3 {
  font-family: var(--pixel);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 16px 0 12px;
}
.card p { font-size: 13.5px; line-height: 1.75; color: var(--dim); }
.card p .fine { font-size: 11px; }

/* tetromino icons — 4 blocks each */
.piece-icon {
  display: grid;
  gap: 2px;
  width: max-content;
}
.piece-icon i {
  width: 13px;
  height: 13px;
  border-radius: 2.5px;
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, 0.35), inset 0 -3px 0 rgba(0, 0, 0, 0.3);
}
.icon-O { grid-template-columns: repeat(2, 13px); }
.icon-O i { background: var(--yellow); box-shadow: inset 0 2px 0 rgba(255,255,255,.35), inset 0 -3px 0 rgba(0,0,0,.3), 0 0 12px rgba(250, 204, 21, 0.35); }
.icon-I { grid-template-columns: repeat(4, 13px); }
.icon-I i { background: var(--cyan); box-shadow: inset 0 2px 0 rgba(255,255,255,.35), inset 0 -3px 0 rgba(0,0,0,.3), 0 0 12px rgba(34, 211, 238, 0.35); }
.icon-T { grid-template-columns: repeat(3, 13px); }
.icon-T i { background: var(--purple); box-shadow: inset 0 2px 0 rgba(255,255,255,.35), inset 0 -3px 0 rgba(0,0,0,.3), 0 0 12px rgba(168, 85, 247, 0.35); }
.icon-T i:nth-child(1) { grid-column: 2; }
.icon-T i:nth-child(2) { grid-column: 1; grid-row: 2; }
.icon-T i:nth-child(3) { grid-column: 2; grid-row: 2; }
.icon-T i:nth-child(4) { grid-column: 3; grid-row: 2; }
.icon-S { grid-template-columns: repeat(3, 13px); }
.icon-S i { background: var(--green); box-shadow: inset 0 2px 0 rgba(255,255,255,.35), inset 0 -3px 0 rgba(0,0,0,.3), 0 0 12px rgba(74, 222, 128, 0.35); }
.icon-S i:nth-child(1) { grid-column: 2; }
.icon-S i:nth-child(2) { grid-column: 3; }
.icon-S i:nth-child(3) { grid-column: 1; grid-row: 2; }
.icon-S i:nth-child(4) { grid-column: 2; grid-row: 2; }

/* hi-score sample list */
.hiscores {
  list-style: none;
  margin: 18px 0 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-deep);
  padding: 6px 0;
}
.hiscores li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--pixel);
  font-size: 9px;
  padding: 9px 16px;
  color: var(--ink);
}
.hiscores li + li { border-top: 1px solid rgba(255, 255, 255, 0.04); }
.hiscores .rk { width: 14px; color: var(--dim); }
.hiscores .rk.r1 { color: var(--yellow); text-shadow: 0 0 8px rgba(250, 204, 21, 0.6); }
.hiscores .rk.r2 { color: var(--cyan); }
.hiscores .rk.r3 { color: var(--orange); }
.hiscores .nm { letter-spacing: 0.3em; }
.hiscores b { margin-left: auto; font-weight: 400; color: var(--dim); }
.hiscores b.you { color: var(--green); text-shadow: 0 0 8px rgba(74, 222, 128, 0.5); animation: blink 1.2s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0.25; } }
.fine { font-size: 11px !important; margin-top: 4px; }

/* ============ BOTTOM CTA ============ */
.bottom-cta {
  text-align: center;
  padding: 70px 0 80px;
}
.insert-coin {
  font-family: var(--pixel);
  font-size: clamp(9px, 2.6vw, 12px);
  color: var(--dim);
  letter-spacing: 0.16em;
  margin-bottom: 28px;
  animation: blink 1.6s steps(2) infinite;
}

/* ============ FOOTER ============ */
footer {
  border-top: 1px solid var(--line);
  padding: 22px 20px calc(22px + env(safe-area-inset-bottom));
  display: flex;
  justify-content: center;
  gap: 10px;
  font-size: 11px;
  color: var(--dim);
  letter-spacing: 0.06em;
}
footer a { color: var(--cyan); text-decoration: none; }
footer .dot { opacity: 0.5; }

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============ DESKTOP ============ */
@media (min-width: 900px) {
  .hero {
    flex-direction: row;
    text-align: left;
    justify-content: space-between;
    padding: 90px 0 60px;
    gap: 60px;
  }
  .hero-copy { max-width: 520px; }
  .gestures { justify-content: flex-start; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .card-scores { grid-column: 1 / -1; }
  .card-scores .hiscores { max-width: 420px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}