:root {
  --bg: #0a0b0d;
  --bg-2: #111317;
  --calc-body: #1c1f26;
  --calc-edge: #0d0e11;
  --screen-bg: #07140d;
  --green: #4ade80;
  --green-dim: #2f6b48;
  --cyan: #22d3ee;
  --amber: #fbbf24;
  --rose: #fb7185;
  --yellow: #fde047;
  --text: #d4d8dd;
  --text-dim: #7c828c;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  overflow-x: hidden;
}

.crt-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255, 255, 255, 0.025) 0px,
    rgba(255, 255, 255, 0.025) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}

main {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 4rem 1.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(74, 222, 128, 0.08), transparent),
    var(--bg);
}

.hero-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 3.5rem;
  align-items: center;
}

@media (max-width: 800px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    justify-items: center;
  }
}

/* ---------- Calculator ---------- */

.calculator {
  background: var(--calc-body);
  border: 1px solid #2a2e37;
  border-radius: 22px;
  padding: 1.1rem;
  width: 300px;
  box-shadow:
    0 30px 60px -20px rgba(0, 0, 0, 0.8),
    0 0 0 1px rgba(255, 255, 255, 0.02) inset,
    0 -2px 0 rgba(0, 0, 0, 0.4) inset;
}

.calculator-bezel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.8rem;
  padding: 0 0.15rem;
  height: 22px;
}

.calculator-logo {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.03em;
  color: var(--green-dim);
  transform: scaleY(0.75);
  transform-origin: left;
}

.solar-strip {
  width: 84px;
  height: 100%;
  background: #2a2a2a;
  border: 1px solid #3a3e46;
  border-radius: 5px;
  display: flex;
  gap: 2px;
  padding: 2px;
  cursor: pointer;
  transition: border-color 200ms ease;
}

.solar-strip span {
  flex: 1;
  background: #111;
  border-radius: 2px;
  opacity: 0.8;
}

.solar-strip:hover {
  border-color: var(--green-dim);
}

/* ---------- Solar reset (hover / tap-and-hold) ---------- */

.calculator .screen {
  transition: filter 200ms ease;
}

.calculator.is-resetting .screen {
  filter: brightness(0.15) saturate(0.3);
}

.calculator.is-resetting .key {
  transition: background-color 150ms ease, color 150ms ease, box-shadow 150ms ease;
  background: #2a2e37 !important;
  color: #6b7280 !important;
  box-shadow: none !important;
}

.calculator.is-resetting .key-badge,
.calculator.is-resetting .key-bar {
  opacity: 0;
  transition: opacity 120ms ease;
}

.screen {
  background: var(--screen-bg);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  border: 1px solid #0f2419;
  box-shadow: inset 0 0 18px rgba(74, 222, 128, 0.08);
  font-family: 'VT323', monospace;
  margin-bottom: 1rem;
}

.screen-row {
  color: var(--green);
  text-shadow: 0 0 8px rgba(74, 222, 128, 0.55);
}

.screen-row--status {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
  color: var(--green-dim);
  text-shadow: none;
  margin-bottom: 0.3rem;
}

.screen-row--target {
  position: relative;
  font-size: 2.4rem;
  line-height: 1;
  letter-spacing: 1px;
  transition: transform 80ms ease;
}

.screen-row--target.is-hit {
  animation: target-shake 280ms ease;
}

.screen-row--target.is-eliminated #target-val {
  color: var(--yellow);
  text-shadow: 0 0 14px rgba(253, 224, 71, 0.8);
}

@keyframes target-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-4px); }
  40% { transform: translateX(4px); }
  60% { transform: translateX(-2px); }
  80% { transform: translateX(2px); }
}

.dmg-float {
  position: absolute;
  right: 0;
  top: -4px;
  font-size: 1.1rem;
  color: var(--rose);
  text-shadow: 0 0 8px rgba(251, 113, 133, 0.7);
  opacity: 0;
}

.dmg-float.is-active {
  animation: dmg-float-up 760ms ease-out;
}

.dmg-float.is-zero {
  color: var(--text-dim);
  text-shadow: none;
}

@keyframes dmg-float-up {
  0% { opacity: 0; transform: translateY(4px) scale(0.85); }
  20% { opacity: 1; transform: translateY(-2px) scale(1.1); }
  100% { opacity: 0; transform: translateY(-22px) scale(1); }
}

.screen-row--input {
  font-size: 1.5rem;
  min-height: 1.8rem;
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(34, 211, 238, 0.55);
}

.cursor {
  animation: blink 1s steps(1) infinite;
}

.screen-row--feed {
  font-size: 1.1rem;
  min-height: 1.4rem;
  color: var(--amber);
  text-shadow: 0 0 8px rgba(251, 191, 36, 0.55);
}

@keyframes blink {
  50% { opacity: 0; }
}

.keys {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.key {
  position: relative;
  background: #2a2e37;
  border-bottom: 3px solid #15171b;
  border-radius: 8px;
  height: 46px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-weight: 700;
  font-size: 0.95rem;
  color: #cdd2da;
  transition: transform 80ms ease, background-color 200ms ease;
  overflow: hidden;
}

.key-label {
  line-height: 1;
}

.key-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(0, 0, 0, 0.35);
}

.key-bar-fill {
  display: block;
  height: 100%;
  width: 100%;
  background: #3f7a52;
  transition: width 160ms ease, background-color 200ms ease;
}

.key-bar-fill.durability-mid {
  background: var(--amber);
}

.key-bar-fill.durability-low {
  background: var(--rose);
}

.key-badge {
  position: absolute;
  top: 2px;
  right: 3px;
  font-size: 0.55rem;
  line-height: 1;
  opacity: 0.9;
}

.key--op {
  color: var(--amber);
}

.key--eq {
  background: #143d28;
  color: var(--green);
  border-bottom-color: #0a1f15;
}

.key--flicker { box-shadow: 0 0 0 1px rgba(253, 224, 71, 0.4) inset; color: var(--yellow); }
.key--sticky { box-shadow: 0 0 0 1px rgba(217, 119, 6, 0.45) inset; }
.key--power { box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.5) inset; color: #34d399; }
.key--vampire { box-shadow: 0 0 0 1px rgba(244, 63, 94, 0.5) inset; color: var(--rose); }

.key.is-pressed {
  transform: translateY(2px) scale(0.96);
}

.key.is-broken {
  animation: key-crack 360ms ease;
  background: #1a1c21;
  color: #4b505a;
}

@keyframes key-crack {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-3px) rotate(-2deg); }
  50% { transform: translateX(3px) rotate(2deg); }
  75% { transform: translateX(-2px) rotate(-1deg); }
}

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

.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (max-width: 800px) {
  .hero-copy {
    align-items: center;
  }
}

.kicker {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--green-dim);
  margin: 0;
}

h1 {
  font-family: 'VT323', monospace;
  font-size: 4.2rem;
  line-height: 0.95;
  margin: 0;
  letter-spacing: 1px;
  color: var(--text);
}

h1 .accent {
  color: var(--green);
  text-shadow: 0 0 18px rgba(74, 222, 128, 0.5);
}

.tagline {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 30ch;
  margin: 0;
}

.cta-row {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.4rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn--primary {
  background: var(--green);
  color: #06140b;
  box-shadow: 0 0 24px rgba(74, 222, 128, 0.35);
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px rgba(74, 222, 128, 0.5);
}

.btn--ghost {
  border: 1px solid #2c3038;
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--green-dim);
  color: var(--green);
}

.store-note {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin: 0;
}

/* ---------- Features ---------- */

.features {
  padding: 5rem 1.5rem;
  background: var(--bg-2);
  border-top: 1px solid #1a1d23;
  border-bottom: 1px solid #1a1d23;
}

.features h2,
.playtest h2 {
  font-family: 'VT323', monospace;
  font-size: 2.2rem;
  text-align: center;
  margin: 0 0 2.5rem;
  color: var(--text);
}

.feature-grid {
  max-width: 1080px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }
}

.feature-card {
  background: var(--bg);
  border: 1px solid #1f232b;
  border-radius: 12px;
  padding: 1.4rem;
}

.feature-card h3 {
  margin: 0.6rem 0 0.4rem;
  font-size: 1.05rem;
  color: var(--text);
}

.feature-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.5;
}

.feature-card code {
  background: #1c1f26;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  color: var(--green);
}

.chip {
  display: inline-flex;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  letter-spacing: 0.04em;
}

.chip--std { background: #1f2937; color: #9ca3af; }
.chip--flicker { background: #3a3415; color: var(--yellow); }
.chip--vampire { background: #3a1620; color: var(--rose); }
.chip--loot { background: #3a3215; color: var(--amber); }

/* ---------- Playtest ---------- */

.playtest {
  padding: 5rem 1.5rem;
  text-align: center;
}

.playtest-inner {
  max-width: 560px;
  margin: 0 auto;
}

.playtest p {
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 2rem;
}

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

footer {
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  border-top: 1px solid #1a1d23;
}

.footer-links {
  margin-top: 0.5rem;
}

.footer-links a {
  color: var(--text-dim);
  text-decoration: underline;
  text-decoration-color: #2c3038;
}

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

/* ---------- Legal page ---------- */

.legal {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
  line-height: 1.7;
}

.legal a {
  color: var(--cyan);
  text-decoration: underline;
}

.legal h1 {
  font-size: 2.4rem;
  margin-bottom: 0.3rem;
}

.legal .updated {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 2.5rem;
}

.legal h2 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  color: var(--green);
  margin-top: 2.2rem;
  margin-bottom: 0.6rem;
}

.legal p,
.legal li {
  color: var(--text);
  font-size: 0.92rem;
}

.legal ul {
  padding-left: 1.3rem;
}

.legal .back-link {
  display: inline-block;
  margin-bottom: 2rem;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.85rem;
}

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