/* 메인 페이지 — 작품을 고르는 곳.
   작품 화면(style.css)과는 성격이 달라 따로 둔다. */

:root {
  --bg: #07080b;
  --surface: rgba(255, 255, 255, 0.035);
  --line: rgba(255, 255, 255, 0.09);
  --text: #eef1f6;
  --muted: #98a2b3;
  --accent: #22d3ee;
}

* { box-sizing: border-box; }

body.home {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard Variable", "Pretendard", -apple-system,
    "Apple SD Gothic Neo", "Segoe UI", "Malgun Gothic", sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

/* 배경의 은은한 빛 — 내용 뒤에 깔린다 */
.glowfield {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(48rem 26rem at 12% -8%, rgba(34, 211, 238, 0.16), transparent 60%),
    radial-gradient(42rem 24rem at 92% 6%, rgba(168, 85, 247, 0.14), transparent 62%),
    radial-gradient(38rem 22rem at 50% 108%, rgba(251, 191, 36, 0.1), transparent 60%);
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(48px, 9vw, 104px) clamp(20px, 5vw, 40px) 64px;
}

/* ── 첫 화면 ──────────────────────────────────────────── */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 22px;
  padding: 7px 15px 7px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  /* 한글은 자간을 넓히면 늘어져 보인다. 라틴 대문자용 값을 쓰지 않는다. */
  letter-spacing: 0.01em;
}

.eyebrow .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.16);
}

.hero h1 {
  margin: 0;
  font-size: clamp(38px, 7.4vw, 76px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(96deg, #67e8f9 0%, #a78bfa 48%, #fbbf24 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  max-width: 46ch;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: clamp(15px, 1.7vw, 17px);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12.5px;
}

/* ── 작품 카드 ────────────────────────────────────────── */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(248px, 1fr));
  gap: 16px;
  margin: clamp(44px, 7vw, 72px) 0 0;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(168deg, hsla(var(--hue), 90%, 62%, 0.09), transparent 46%),
    rgba(255, 255, 255, 0.028);
  color: inherit;
  text-decoration: none;
  overflow: hidden;
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    border-color 0.28s, background 0.28s, box-shadow 0.28s;
}

/* 위쪽 모서리를 따라 흐르는 색 띠 */
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, transparent,
    hsl(var(--hue) 92% 66%), transparent);
  opacity: 0.45;
  transition: opacity 0.28s;
}

.card:hover, .card:focus-visible {
  transform: translateY(-5px);
  border-color: hsla(var(--hue), 90%, 66%, 0.5);
  background:
    linear-gradient(168deg, hsla(var(--hue), 90%, 62%, 0.16), transparent 52%),
    rgba(255, 255, 255, 0.05);
  box-shadow: 0 22px 46px -24px hsla(var(--hue), 90%, 50%, 0.8);
  outline: none;
}

.card:hover::before, .card:focus-visible::before { opacity: 1; }

.icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 4px;
  border-radius: 15px;
  background: hsla(var(--hue), 88%, 60%, 0.14);
  border: 1px solid hsla(var(--hue), 88%, 66%, 0.28);
  font-size: 25px;
  line-height: 1;
}

.card h2 {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.62;
}

.card footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: auto;
  padding-top: 16px;
  font-size: 12px;
}

.need {
  padding: 4px 10px;
  border-radius: 999px;
  background: hsla(var(--hue), 88%, 60%, 0.12);
  color: hsl(var(--hue) 85% 76%);
  font-weight: 600;
}

.go {
  color: var(--muted);
  font-weight: 600;
  transition: transform 0.28s, color 0.28s;
}

.card:hover .go, .card:focus-visible .go {
  color: var(--text);
  transform: translateX(3px);
}

/* ── 이용 방법 ────────────────────────────────────────── */

.how {
  margin: clamp(48px, 8vw, 80px) 0 0;
  padding: 28px 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}

/* 안내 상자가 연달아 오면 사이는 좁게 둔다 */
.how ~ .how { margin-top: 16px; }

.how h3 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.how ol,
.how .tips {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px 26px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  font-size: 13.5px;
}

/* 순서가 있는 단계가 아니라 골라 쓰는 방법들이다 */
.how .tips { list-style: none; padding-left: 0; }

.how .tips li {
  position: relative;
  padding-left: 16px;
}

.how .tips li::before {
  content: "";
  position: absolute;
  top: 0.55em;
  left: 2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.7;
}

.how li { padding-left: 2px; }
.how b { color: var(--text); font-weight: 600; }

/* ── 아래 ─────────────────────────────────────────────── */

.bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: clamp(44px, 7vw, 72px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.by {
  display: flex;
  align-items: center;
  gap: 12px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(140deg, #67e8f9, #a78bfa);
  color: #0a1420;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.by div { display: flex; flex-direction: column; line-height: 1.35; }
.by b { font-size: 14px; }
.by span { color: var(--muted); font-size: 12px; }

.fine {
  flex: 1 1 320px;
  margin: 0;
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.65;
  text-align: right;
}

/* ── 등장 ─────────────────────────────────────────────── */

.hero, .grid > *, .how, .bottom {
  animation: rise 0.66s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.grid > *:nth-child(2) { animation-delay: 0.06s; }
.grid > *:nth-child(3) { animation-delay: 0.12s; }
.grid > *:nth-child(4) { animation-delay: 0.18s; }
.how { animation-delay: 0.22s; }
.how ~ .how { animation-delay: 0.26s; }
.bottom { animation-delay: 0.3s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

@media (max-width: 640px) {
  .fine { text-align: left; }
  .card { padding: 20px 18px 18px; }
}