/* ===== GAGA AI — 정적 회사 소개 (다크 테마) ===== */
:root {
  --bg:        #0a0e1a;   /* 베이스 다크 네이비 */
  --bg-alt:    #0f1424;
  --ink:       #eaf0ff;   /* 본문 밝은 글자 */
  --muted:     #9aa6c4;   /* 보조 텍스트 */
  --accent:    #2ee6c5;   /* 청록 포인트 */
  --accent-2:  #6a8bff;   /* 보라/블루 포인트 */
  --card:      #141a2e;
  --border:    rgba(255, 255, 255, 0.08);
  --maxw:      1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Pretendard", "Apple SD Gothic Neo", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

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

/* ===== 헤더 ===== */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(10, 14, 26, 0.6);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.brand span { color: var(--accent); }
.nav__links { display: flex; gap: 32px; }
.nav__links a { color: var(--muted); font-weight: 600; font-size: 15px; transition: color 0.2s; }
.nav__links a:hover { color: var(--ink); }
.nav__right { display: flex; align-items: center; gap: 18px; }
.nav__cta {
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: #06121b;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.lang { display: flex; align-items: center; gap: 6px; }
.lang__btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  padding: 2px 2px;
  transition: color 0.15s;
}
.lang__btn:hover { color: var(--ink); }
.lang__btn.is-active { color: var(--accent); }
.lang__sep { color: var(--border); }
@media (max-width: 760px) {
  .nav__links { display: none; }   /* 모바일: 메뉴 숨김(추후 햄버거), CTA·언어만 노출 */
}

/* ===== 히어로 ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  text-align: center;
  overflow: hidden;
}
/* ── 임시 애니메이션 배경: 움직이는 그라데이션 오로라 + 파티클 ── */
.hero__anim {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(40% 55% at 20% 30%, rgba(106, 139, 255, 0.45), transparent 60%),
    radial-gradient(45% 50% at 80% 25%, rgba(46, 230, 197, 0.40), transparent 60%),
    radial-gradient(50% 60% at 60% 80%, rgba(139, 92, 246, 0.40), transparent 60%),
    linear-gradient(180deg, #070b16, #0a0e1a);
  background-size: 200% 200%, 200% 200%, 200% 200%, 100% 100%;
  animation: aurora 18s ease-in-out infinite;
  filter: saturate(1.1);
}
@keyframes aurora {
  0%   { background-position: 0% 50%,   100% 0%,   50% 100%, 0 0; }
  50%  { background-position: 100% 50%, 0% 100%,   80% 0%,   0 0; }
  100% { background-position: 0% 50%,   100% 0%,   50% 100%, 0 0; }
}
/* 떠다니는 파티클(점): 여러 radial-gradient 점을 천천히 상승 */
.hero__particles {
  position: absolute;
  inset: -10% 0;
  background-image:
    radial-gradient(2px 2px at 15% 20%, rgba(255,255,255,0.9), transparent),
    radial-gradient(2px 2px at 35% 70%, rgba(46,230,197,0.9), transparent),
    radial-gradient(1.5px 1.5px at 55% 40%, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 75% 80%, rgba(106,139,255,0.9), transparent),
    radial-gradient(1.5px 1.5px at 88% 30%, rgba(255,255,255,0.8), transparent),
    radial-gradient(2px 2px at 25% 90%, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 65% 15%, rgba(46,230,197,0.7), transparent),
    radial-gradient(2px 2px at 5% 55%, rgba(255,255,255,0.7), transparent);
  background-repeat: repeat;
  background-size: 100% 120%;
  animation: drift 14s linear infinite;
  opacity: 0.7;
}
@keyframes drift {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-12%); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__anim, .hero__particles { animation: none; }
}

/* 배경 영상: 히어로 전체를 채우고 텍스트 뒤로 깔림 (영상 있으면 애니메이션 위를 덮음) */
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;          /* 비율 유지하며 꽉 채움 */
  z-index: 0;                 /* anim과 동일층, DOM 뒤라 영상 로드 시 위로 */
}
/* 오버레이: 영상 위에 어둡게 + 컬러 글로우 → 텍스트 가독성 확보 */
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(900px 500px at 50% 18%, rgba(106, 139, 255, 0.22), transparent 60%),
    radial-gradient(700px 500px at 80% 80%, rgba(46, 230, 197, 0.14), transparent 60%),
    linear-gradient(180deg, rgba(10, 14, 26, 0.55) 0%, rgba(10, 14, 26, 0.45) 50%, rgba(10, 14, 26, 0.92) 100%);
}
.hero__inner { position: relative; z-index: 2; padding: 120px 24px 0; width: 100%; }
.hero__eyebrow {
  color: var(--accent);
  font-weight: 700;
  font-size: clamp(15px, 2vw, 19px);
  margin-bottom: 22px;
  letter-spacing: 0.2px;
}
.hero__title {
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -1px;
}
.hero__title strong { color: var(--accent); }
.hero__sub {
  color: var(--muted);
  font-size: clamp(16px, 2.2vw, 20px);
  margin: 28px 0 40px;
}
.hero__scroll {
  margin-top: 64px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 3px;
  animation: float 2s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); opacity: .6 } 50% { transform: translateY(8px); opacity: 1 } }

/* ===== 버튼 ===== */
.btn {
  display: inline-block;
  padding: 15px 34px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  color: #06121b;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 8px 30px rgba(46, 230, 197, 0.25);
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(46, 230, 197, 0.4); }

/* ===== 섹션 공통 ===== */
.section { padding: 110px 0; }
.section--alt { background: var(--bg-alt); }
.section h2 {
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 28px;
  text-align: center;
}
.lead {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
}

/* ===== 서비스 카드 ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));   /* 개수에 맞춰 자동 정렬 */
  gap: 24px;
  margin-top: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px 28px;
  transition: transform 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(46, 230, 197, 0.4); }
.card h3 { font-size: 21px; font-weight: 700; margin-bottom: 12px; color: var(--accent); }
.card p { color: var(--muted); font-size: 15px; }

/* ===== AI Tech ===== */
.tech {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.techcard {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 34px 30px;
  transition: transform 0.2s, border-color 0.2s;
}
.techcard:hover { transform: translateY(-4px); border-color: rgba(46, 230, 197, 0.4); }
.techcard__no {
  font-size: 14px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 1px;
}
.techcard h3 { font-size: 21px; font-weight: 700; margin: 10px 0 10px; }
.techcard p { color: var(--muted); font-size: 15px; }

/* ===== 홍보센터 영상 갤러리 ===== */
.media {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 16px;
}
.mediacard {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.2s, border-color 0.2s;
}
.mediacard:hover { transform: translateY(-6px); border-color: rgba(46, 230, 197, 0.4); }
.mediacard__thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid;
  place-items: center;
}
.mediacard__thumb--1 { background: linear-gradient(135deg, #6a8bff, #2ee6c5); }
.mediacard__thumb--2 { background: linear-gradient(135deg, #8b5cf6, #6a8bff); }
.mediacard__thumb--3 { background: linear-gradient(135deg, #2ee6c5, #8b5cf6); }
.mediacard__thumb--4 { background: linear-gradient(135deg, #f0883e, #8b5cf6); }
.mediacard__play {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(10, 14, 26, 0.55);
  color: #fff;
  font-size: 18px;
  padding-left: 3px;
  backdrop-filter: blur(2px);
  transition: transform 0.15s;
}
.mediacard:hover .mediacard__play { transform: scale(1.12); }
.mediacard__thumb video { width: 100%; height: 100%; object-fit: cover; }
.mediacard__body { padding: 16px 18px 20px; }
.mediacard__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(46, 230, 197, 0.12);
  border-radius: 999px;
  padding: 4px 11px;
  margin-bottom: 10px;
}
.mediacard__body h3 { font-size: 16px; font-weight: 700; line-height: 1.4; }

/* ===== 구축사례 갤러리 ===== */
.works {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 16px;
}
.work {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  transition: transform 0.2s, border-color 0.2s;
}
.work:hover { transform: translateY(-6px); border-color: rgba(46, 230, 197, 0.4); }
.work__thumb { aspect-ratio: 16 / 10; }   /* 추후 실제 이미지로 교체 */
.work__thumb--1 { background: linear-gradient(135deg, #6a8bff, #2ee6c5); }
.work__thumb--2 { background: linear-gradient(135deg, #8b5cf6, #6a8bff); }
.work__thumb--3 { background: linear-gradient(135deg, #2ee6c5, #8b5cf6); }
.work__body { padding: 22px 24px 28px; }
.work__tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  background: rgba(46, 230, 197, 0.12);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
}
.work__body h3 { font-size: 19px; font-weight: 700; margin-bottom: 8px; }
.work__body p { color: var(--muted); font-size: 14px; }

/* ===== 문의 폼 (코난 스타일: 라벨 좌측 + 필드 우측) ===== */
.contact { text-align: center; }
.cform {
  max-width: 880px;
  margin: 48px auto 28px;
  text-align: left;
  border-top: 1px solid var(--border);
}
.cform__group {
  display: grid;
  grid-template-columns: 160px 1fr;
  align-items: start;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--border);
}
.cform__label { font-size: 15px; font-weight: 700; padding-top: 12px; }
.cform__label i { color: var(--accent); font-style: normal; }
.cform input,
.cform select,
.cform textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 13px 15px;
  color: var(--ink);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.15s;
}
.cform input::placeholder,
.cform textarea::placeholder { color: #5e6987; }
.cform input:focus,
.cform select:focus,
.cform textarea:focus { outline: none; border-color: var(--accent); }
.cform textarea { resize: vertical; }

/* 문의 분류 칩 (radio를 버튼처럼) */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chips input { position: absolute; opacity: 0; pointer-events: none; width: 0; }
.chips label {
  display: inline-block;
  padding: 11px 20px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.chips label:hover { color: var(--ink); border-color: rgba(46, 230, 197, 0.4); }
.chips input:checked + label {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(46, 230, 197, 0.1);
}

.cform__actions { padding: 28px 4px 0; text-align: center; }
.cform__actions .btn { border: none; cursor: pointer; }
.cform__status {
  margin: 18px 0 0;
  text-align: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--muted);
}
.cform__status.is-ok { color: var(--accent); }
.cform__status.is-err { color: #ff6b6b; }

.contact__email { margin-top: 22px; text-align: center; color: var(--muted); font-size: 16px; }
.contact__email a { color: var(--accent); font-weight: 700; }

@media (max-width: 980px) {
  .media { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .works { grid-template-columns: 1fr; }
  .tech { grid-template-columns: 1fr; }
  .media { grid-template-columns: 1fr; }
  .cform__group { grid-template-columns: 1fr; gap: 10px; padding: 18px 4px; }
  .cform__label { padding-top: 0; }
}

/* ===== 푸터 ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  text-align: center;
}
.footer p { color: var(--muted); font-size: 14px; }

/* ===== 반응형 ===== */
@media (max-width: 760px) {
  .nav__links { gap: 18px; }
  .nav__links a { font-size: 13px; }
  .cards { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
}