/* Fachidiot — 공통 스타일 (다크·시네마틱) */
:root {
  --bg: #07070b;
  --line: rgba(255, 255, 255, .08);
  --line-strong: rgba(255, 255, 255, .18);
  --text: #eceaf4;
  --muted: #9a97ad;
  --soft: #c9c7d6;
  --a1: #8b5cf6;
  --a2: #22d3ee;
  --a3: #f472b6;
  --grad: linear-gradient(120deg, var(--a1), var(--a2) 55%, var(--a3));
  --radius: 20px;
  --max: 1120px;
}

* { box-sizing: border-box; margin: 0; }
html {
  scroll-behavior: smooth;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Malgun Gothic", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
body { min-height: 100vh; line-height: 1.65; overflow-x: hidden; }
html[data-lang="ko"] body { word-break: keep-all; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--a2); outline-offset: 3px; border-radius: 6px; }

/* 언어 전환: 비활성 언어는 숨긴다 */
html[data-lang="ko"] body [lang="en"],
html[data-lang="en"] body [lang="ko"] { display: none !important; }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.muted { color: var(--muted); }

/* ---------- 상단 내비 ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px max(24px, calc((100% - var(--max)) / 2 + 24px));
  background: rgba(7, 7, 11, .62);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -.01em; }
.brand img { width: 28px; height: 28px; }
.nav nav { display: flex; align-items: center; gap: 22px; font-size: .95rem; color: var(--muted); }
.nav nav a:hover { color: var(--text); }
.lang-toggle {
  font: inherit; font-size: .85rem; color: var(--text); cursor: pointer;
  background: transparent; border: 1px solid var(--line); border-radius: 999px; padding: 6px 13px;
}
.lang-toggle:hover { border-color: var(--line-strong); }
@media (max-width: 640px) { .nav nav a { display: none; } }

/* ---------- 버튼·배지 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 22px; border-radius: 999px; font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--grad); color: #0b0b10; box-shadow: 0 12px 32px -12px rgba(139, 92, 246, .7); }
.btn.ghost { border: 1px solid var(--line); background: rgba(255, 255, 255, .03); }
.btn.ghost:hover { border-color: var(--line-strong); }
.btn[aria-disabled="true"] { opacity: .55; pointer-events: none; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .8rem; font-weight: 600; padding: 6px 12px; border-radius: 999px;
  color: #7ee8f7; background: rgba(34, 211, 238, .1); border: 1px solid rgba(34, 211, 238, .25);
}
.badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 10px currentColor; }

/* ---------- 히어로 ---------- */
.hero {
  position: relative; min-height: min(88vh, 820px);
  display: flex; flex-direction: column; justify-content: center;
  max-width: var(--max); margin: 0 auto; padding: 120px 24px 96px;
}
.aurora {
  position: absolute; inset: -20% -30% auto; height: 120%; z-index: -1; pointer-events: none;
  background:
    radial-gradient(40% 50% at 20% 30%, rgba(139, 92, 246, .35), transparent 70%),
    radial-gradient(35% 45% at 75% 25%, rgba(34, 211, 238, .22), transparent 70%),
    radial-gradient(40% 40% at 55% 75%, rgba(244, 114, 182, .18), transparent 70%);
  filter: blur(40px);
  animation: drift 18s ease-in-out infinite alternate;
}
@keyframes drift { to { transform: translate3d(4%, 6%, 0) scale(1.08); } }
.eyebrow { font-size: .82rem; font-weight: 600; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.hero h1 {
  margin-top: 18px;
  font-size: clamp(3.5rem, 11vw, 8.5rem); font-weight: 800; letter-spacing: -.045em; line-height: .95;
  background: linear-gradient(180deg, #fff, #b9b6cc); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { margin-top: 26px; max-width: 36em; font-size: clamp(1.05rem, 2vw, 1.3rem); color: var(--muted); }
.cta { margin-top: 36px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 섹션 ---------- */
.section { padding: 96px 0; }
.section h2 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 750; letter-spacing: -.03em; line-height: 1.1; }
.section-head p { margin-top: 12px; color: var(--muted); max-width: 40em; }
.split { display: grid; grid-template-columns: 1.1fr .9fr; gap: 64px; align-items: center; }
.split .badge { margin-bottom: 18px; }
.split p { margin-top: 16px; color: var(--soft); max-width: 32em; }
.split .cta { margin-top: 28px; }
@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; gap: 48px; }
  .phone { margin: 0 auto; }
}

/* ---------- 라이브 배경화면 폰 목업 ---------- */
.phone {
  width: min(300px, 78vw); aspect-ratio: 9 / 19.5; padding: 10px; border-radius: 44px;
  background: linear-gradient(160deg, #2a2a35, #111118);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, .08), 0 40px 80px -30px rgba(0, 0, 0, .8), 0 0 120px -20px rgba(139, 92, 246, .35);
}
.screen { position: relative; height: 100%; border-radius: 36px; overflow: hidden; background: #0a0a12; isolation: isolate; }
.blob { position: absolute; width: 75%; aspect-ratio: 1; border-radius: 50%; filter: blur(30px); opacity: .85; mix-blend-mode: screen; }
.b1 { background: var(--a1); top: -10%; left: -20%; animation: float1 12s ease-in-out infinite alternate; }
.b2 { background: var(--a2); top: 35%; right: -25%; animation: float2 14s ease-in-out infinite alternate; }
.b3 { background: var(--a3); bottom: -15%; left: 5%; animation: float3 16s ease-in-out infinite alternate; }
@keyframes float1 { to { transform: translate(35%, 40%) scale(1.2); } }
@keyframes float2 { to { transform: translate(-45%, -30%) scale(.85); } }
@keyframes float3 { to { transform: translate(30%, -45%) scale(1.15); } }
.clock {
  position: absolute; top: 13%; left: 0; right: 0; text-align: center;
  font-size: clamp(2.6rem, 11vw, 3.4rem); font-weight: 300; letter-spacing: -.02em; line-height: 1.1;
  color: rgba(255, 255, 255, .94); text-shadow: 0 2px 20px rgba(0, 0, 0, .3);
}
.clock small { display: block; margin-top: 6px; font-size: .85rem; font-weight: 500; opacity: .8; letter-spacing: .02em; }
.dock { position: absolute; left: 10%; right: 10%; bottom: 5%; display: flex; justify-content: space-between; }
.dock i { width: 19%; aspect-ratio: 1; border-radius: 28%; background: rgba(255, 255, 255, .16); backdrop-filter: blur(6px); }

/* ---------- 프로젝트 카드 ---------- */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 20px; margin-top: 40px; }
.card {
  display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .015));
  transition: transform .3s ease, border-color .3s ease;
}
a.card:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.card-art {
  position: relative; aspect-ratio: 16 / 10; display: grid; place-items: center; overflow: hidden;
  background: var(--grad); font-size: 1.8rem; font-weight: 800; letter-spacing: -.03em; color: rgba(11, 11, 16, .85);
}
.card-art::after { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 80% at 80% 0%, rgba(255, 255, 255, .35), transparent 60%); }
.card-body { display: flex; flex-direction: column; gap: 8px; padding: 20px 22px 24px; }
.meta { display: flex; flex-wrap: wrap; gap: 8px; font-size: .78rem; color: var(--muted); }
.chip { padding: 3px 10px; border: 1px solid var(--line); border-radius: 999px; }
.card h3 { font-size: 1.25rem; letter-spacing: -.01em; }
.card p { color: var(--muted); font-size: .95rem; }
.card.next { border-style: dashed; justify-content: center; align-items: center; text-align: center; min-height: 260px; padding: 24px; color: var(--muted); background: transparent; }
.card.next b { display: block; color: var(--text); font-size: 1.05rem; margin-bottom: 6px; }

/* ---------- 소개 기둥 ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.pillar { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, .02); }
.pillar .ico { font-size: 1.5rem; }
.pillar b { display: block; margin: 12px 0 6px; font-size: 1.08rem; }
.pillar p { color: var(--muted); font-size: .95rem; }
@media (max-width: 760px) { .pillars { grid-template-columns: 1fr; } }

/* ---------- 연락 ---------- */
.contact-card {
  text-align: center; padding: clamp(40px, 7vw, 72px) 24px; border: 1px solid var(--line); border-radius: 28px;
  background: radial-gradient(60% 90% at 50% 0%, rgba(139, 92, 246, .16), transparent 70%), rgba(255, 255, 255, .02);
}
.contact-card p { margin-top: 12px; color: var(--muted); }
.mail {
  display: inline-block; margin-top: 26px; font-size: clamp(1.3rem, 4vw, 2.4rem); font-weight: 700; letter-spacing: -.02em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; word-break: break-all;
}

/* ---------- 문서(개인정보처리방침) ---------- */
.doc { max-width: 760px; margin: 0 auto; padding: 72px 24px 96px; }
.doc .back { color: var(--muted); font-size: .92rem; }
.doc .back:hover { color: var(--text); }
.doc h1 { margin-top: 20px; font-size: clamp(2rem, 5vw, 3rem); letter-spacing: -.03em; line-height: 1.15; }
.doc .updated { margin-top: 10px; color: var(--muted); font-size: .92rem; }
.doc h2 { margin: 40px 0 10px; font-size: 1.2rem; letter-spacing: -.01em; }
.doc p, .doc li { color: var(--soft); }
.doc p + p { margin-top: 10px; }
.doc ul { padding-left: 1.2em; margin-top: 8px; }
.doc li + li { margin-top: 4px; }
.doc a { color: #7ee8f7; text-decoration: underline; text-underline-offset: 3px; }

/* ---------- 푸터 ---------- */
.foot { border-top: 1px solid var(--line); padding: 32px 0 48px; color: var(--muted); font-size: .88rem; }
.foot .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.foot nav { display: flex; gap: 18px; flex-wrap: wrap; }
.foot a:hover { color: var(--text); }

/* ---------- 스크롤 등장 (JS 있을 때만 숨김) ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s ease, transform .8s ease; }
.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}