:root {
  --ink: #0c1210;
  --ink-2: #15201b;
  --paper: #f3f6f1;
  --muted: #9aab9f;
  --lime: #c8f542;
  --lime-dim: #9fc41f;
  --warn: #ff6b4a;
  --line: rgba(243, 246, 241, 0.12);
  --font-display: "Anton", "IBM Plex Sans KR", sans-serif;
  --font-body: "IBM Plex Sans KR", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--paper);
  background:
    radial-gradient(1200px 700px at 80% -10%, rgba(200, 245, 66, 0.18), transparent 55%),
    radial-gradient(900px 500px at -10% 30%, rgba(255, 107, 74, 0.12), transparent 50%),
    linear-gradient(160deg, #070b09 0%, var(--ink) 40%, #101a15 100%);
  min-height: 100vh;
  line-height: 1.5;
}

.noise {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  z-index: 0;
}

.top, main, .foot { position: relative; z-index: 1; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}
.brand {
  font-family: var(--font-display);
  letter-spacing: 0.04em;
  font-size: 1.35rem;
  color: var(--lime);
  text-decoration: none;
}
.top nav { display: flex; gap: 1rem; align-items: center; }
.top a { color: var(--muted); text-decoration: none; font-size: 0.92rem; }
.top a:hover { color: var(--paper); }
.nav-cta {
  color: var(--ink) !important;
  background: var(--lime);
  padding: 0.45rem 0.85rem;
  font-weight: 600;
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: end;
  min-height: calc(100vh - 5rem);
}
.brand-mark {
  margin: 0 0 0.6rem;
  color: var(--lime);
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 1.1rem;
}
.hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
}
.tick {
  color: var(--lime);
  display: inline-block;
  animation: pulse 2.4s ease-in-out infinite;
}
.tick:nth-child(2) { animation-delay: 0.4s; }
@keyframes pulse {
  0%, 100% { transform: translateY(0); filter: brightness(1); }
  50% { transform: translateY(-2px); filter: brightness(1.15); }
}
.lead {
  margin: 1.1rem 0 1.5rem;
  max-width: 34rem;
  color: var(--muted);
  font-size: 1.05rem;
}
.cta-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  padding: 0.85rem 1.25rem;
  transition: transform 0.2s ease, background 0.2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--lime); color: var(--ink); }
.btn.primary:hover { background: #d6ff63; }
.btn.ghost {
  background: transparent;
  color: var(--paper);
  outline: 1px solid var(--line);
}
.btn.wide { width: 100%; }
.timer {
  margin-top: 1.4rem;
  font-size: 0.92rem;
  color: var(--warn);
  font-variant-numeric: tabular-nums;
}

.hero-visual { display: flex; justify-content: flex-end; }
.screen {
  width: min(100%, 340px);
  background: var(--ink-2);
  border: 1px solid var(--line);
  box-shadow: 0 30px 80px rgba(0,0,0,0.45);
  animation: float 5s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(-1deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}
.screen-bar { height: 28px; background: #1d2a24; border-bottom: 1px solid var(--line); }
.screen-body { padding: 1.2rem; display: grid; gap: 0.7rem; }
.line { height: 10px; background: rgba(243,246,241,0.12); }
.w40 { width: 40%; }
.w60 { width: 60%; }
.w80 { width: 80%; }
.block { height: 110px; background: linear-gradient(135deg, rgba(200,245,66,0.25), rgba(255,107,74,0.15)); }
.cta-fake { height: 28px; width: 45%; background: var(--lime); }

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem;
  border-top: 1px solid var(--line);
}
.section h2 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: 0.03em;
  font-weight: 400;
}
.section-lead { color: var(--muted); margin: 0 0 1.5rem; }
.includes {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: grid;
  gap: 0.7rem;
}
.includes li {
  padding-left: 1.4rem;
  position: relative;
}
.includes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 0.55rem;
  height: 0.55rem;
  background: var(--lime);
}
.price {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--lime);
  margin: 0;
  letter-spacing: 0.02em;
}

.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
}
.steps li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
}
.steps strong { color: var(--lime); margin-right: 0.6rem; }

.pay-box {
  background: rgba(21, 32, 27, 0.85);
  border: 1px solid var(--line);
  padding: 1.1rem 1.2rem;
  margin-bottom: 1.5rem;
  display: grid;
  gap: 0.45rem;
}
.pay-box span { color: var(--muted); display: inline-block; min-width: 4rem; }
.pay-box.warning { border-color: var(--warn); }

.form {
  display: grid;
  gap: 0.85rem;
  max-width: 520px;
}
.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: var(--muted);
}
.form input, .form textarea {
  font: inherit;
  color: var(--paper);
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--line);
  padding: 0.75rem 0.85rem;
  outline: none;
}
.form input:focus, .form textarea:focus { border-color: var(--lime); }
.form-msg { min-height: 1.4rem; color: var(--lime); margin: 0; }
.form-msg.error { color: var(--warn); }

.foot {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}
.tiny { font-size: 0.85rem; }

@media (max-width: 800px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 1.5rem;
  }
  .hero-visual { justify-content: flex-start; }
  .screen { width: 100%; max-width: 320px; }
}