/* ============================================
   J JAM STUDIO — Single Page
   Bold & Editorial (ref: sockorea.com)
   ============================================ */

:root {
  --color-bg: #f5f4f1; /* 중립 오프화이트 (크림 키컬러 제거됨) */
  --color-dark: #0c0c0d;
  --color-dark-soft: #17171a;
  --color-ink: #131312;
  --color-ink-soft: #5b5954;
  --color-line: #e4e2dc;
  --color-line-dark: #2a2a2e;
  --color-accent: #be2d2f; /* 로고 별 컬러와 동일한 크림슨 레드 */
  --color-kakao: #fee500;
  --color-kakao-ink: #191919;
  --color-white: #ffffff;
  --font-sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --container: 1280px;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  word-break: keep-all; /* 한국어 단어 단위 줄바꿈 */
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== Reveal animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.22s; }
.delay-3 { transition-delay: 0.38s; }
.delay-4 { transition-delay: 0.52s; }

/* ===== Giant section titles (ref style) ===== */
.giant-title {
  font-size: clamp(3rem, 9vw, 7rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--color-ink);
  margin-bottom: 56px;
}
.giant-title span { display: block; }
.giant-title span:last-child { color: var(--color-accent); }
.giant-title--light { color: var(--color-white); }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-h);
  transition: background 0.3s, box-shadow 0.3s;
}
.header.is-scrolled {
  background: rgba(12, 12, 13, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.header__inner {
  height: var(--header-h);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.header__logo { display: flex; align-items: center; }
.header__logo img { height: 44px; width: auto; display: block; }
/* 내비를 헤더 정중앙에 절대 고정 (로고·버튼 폭과 무관) */
.header__nav { display: flex; gap: 36px; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  transition: color 0.2s;
}
.nav-link:hover, .nav-link.is-active { color: var(--color-white); }
.header__actions { display: flex; align-items: center; gap: 10px; }
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.9rem;
  font-weight: 700;
  padding: 11px 20px;
  border-radius: 100px;
  transition: transform 0.25s var(--ease), background 0.25s, filter 0.25s;
}
.header__cta:hover { transform: translateY(-2px); }
.header__cta--consult { background: var(--color-accent); color: var(--color-white); }
.header__cta--consult:hover { background: #d64345; }
.header__cta--kakao { background: var(--color-kakao); color: var(--color-kakao-ink); }
.header__cta--kakao:hover { filter: brightness(1.05); }
.header__cta--kakao svg { width: 17px; height: 17px; }

.header__menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
}
.header__menu-btn span {
  display: block;
  width: 20px; height: 1.5px;
  margin: 0 auto;
  background: var(--color-white);
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.header__menu-btn.is-open span:nth-child(1) { transform: translateY(3.5px) rotate(45deg); }
.header__menu-btn.is-open span:nth-child(2) { transform: translateY(-3.5px) rotate(-45deg); }

/* ===== Mobile menu ===== */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}
.mobile-menu.is-open { opacity: 1; pointer-events: auto; }
.mobile-menu__nav { display: flex; flex-direction: column; gap: 10px; text-align: center; }
.mobile-link {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  padding: 8px 24px;
  color: var(--color-white);
}
.mobile-link:active { color: var(--color-accent); }
.mobile-menu__actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 28px;
}
.mobile-menu__actions .header__cta { font-size: 1rem; padding: 14px 24px; }

/* ===== Hero (dark fullscreen) ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--color-dark);
  color: var(--color-white);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 50% at 78% 22%, rgba(190, 45, 47, 0.26), transparent 60%),
    radial-gradient(ellipse 50% 45% at 15% 80%, rgba(70, 70, 90, 0.35), transparent 65%),
    repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.025) 0 2px, transparent 2px 9px),
    var(--color-dark);
}
/* 16:9 영상이 화면을 항상 가득 덮도록 cover 계산 */
.hero__video {
  position: absolute;
  top: 50%;
  left: 50%;
  width: max(100vw, 177.78svh);
  height: max(100svh, 56.25vw);
  transform: translate(-50%, -50%);
  border: 0;
  pointer-events: none;
  opacity: 0; /* 재생 시작 전엔 다크 그라디언트만 보이도록 */
  transition: opacity 1.4s ease;
}
.hero__video.is-playing { opacity: 1; }
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(12, 12, 13, 0.55) 0%, rgba(12, 12, 13, 0.35) 45%, rgba(12, 12, 13, 0.75) 100%);
}
.hero__content { position: relative; z-index: 1; text-align: center; }
.hero__title {
  font-size: clamp(2.1rem, 6vw, 5.4rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.hero__line { display: block; }
.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}
.hero__desc {
  margin-top: 36px;
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.72);
  line-height: 1.75;
}
.hero__actions { margin-top: 48px; display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  z-index: 1;
}
.hero__scroll span {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: rgba(255, 255, 255, 0.45);
}
.hero__scroll i {
  width: 1px;
  height: 44px;
  background: rgba(255, 255, 255, 0.25);
  position: relative;
  overflow: hidden;
}
.hero__scroll i::after {
  content: "";
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 50%;
  background: var(--color-accent);
  animation: scrollLine 1.8s var(--ease) infinite;
}
@keyframes scrollLine {
  to { top: 100%; }
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  padding: 17px 34px;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, color 0.25s, border-color 0.25s;
}
.btn:hover { transform: translateY(-2px); }
.btn--accent { background: var(--color-accent); color: var(--color-white); }
.btn--accent:hover { background: #d64345; }
.btn--outline {
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--color-white);
}
.btn--outline:hover { border-color: var(--color-white); }
.btn--full { width: 100%; }

/* ===== Sections common ===== */
.section { padding: 150px 0; }

/* ===== About : ABOUT JJAM AGENCY ===== */
.about { background: var(--color-white); }
.eyebrow {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.about__grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 88px;
  align-items: start;
}
.about__title {
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.03em;
  margin: 26px 0 44px;
}
.about__body p {
  font-size: 1.08rem;
  color: var(--color-ink-soft);
  line-height: 1.9;
}
.about__body p + p { margin-top: 24px; }
.about__body strong { color: var(--color-ink); font-weight: 800; }
.about__punch {
  border-left: 3px solid var(--color-accent);
  padding-left: 16px;
  font-weight: 700;
  color: var(--color-ink) !important;
}

.about__profile {
  position: relative;
  margin: 0;
}
.about__profile-video {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: #e9e7e2;
}
.about__ceo-card {
  position: absolute;
  left: -28px;
  bottom: 32px;
  background: var(--color-white);
  padding: 20px 28px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.1);
}
.ceo-name {
  font-size: 1.1rem;
  font-weight: 800;
}
.ceo-name em {
  font-style: normal;
  color: var(--color-accent);
  margin-right: 6px;
}
.ceo-role {
  margin-top: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink-soft);
}
.ceo-more {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 16px;
  padding: 10px 20px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: 100px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(190, 45, 47, 0.28);
  transition: transform 0.2s var(--ease), box-shadow 0.2s;
}
.ceo-more:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(190, 45, 47, 0.36);
}
.ceo-more span { font-size: 1.05em; line-height: 1; }
/* 라이트 스윕 (주기적으로 빛이 훑고 지나감) */
.ceo-more::after {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 45%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-22deg);
  animation: ceoSweep 3s ease-in-out infinite;
}
@keyframes ceoSweep {
  0% { left: -75%; }
  55%, 100% { left: 130%; }
}
@media (prefers-reduced-motion: reduce) {
  .ceo-more::after { animation: none; }
}

/* ===== Modal (대표 약력) ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal[hidden] { display: none; }
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 12, 13, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.modal__panel {
  position: relative;
  width: min(560px, 100%);
  max-height: 85vh;
  overflow-y: auto;
  background: var(--color-white);
  border-radius: 20px;
  padding: 44px 44px 40px;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
  animation: modalIn 0.4s var(--ease);
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal__close {
  position: absolute;
  top: 18px;
  right: 22px;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--color-ink-soft);
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s, transform 0.25s var(--ease);
}
.modal__close:hover { color: var(--color-ink); transform: rotate(90deg); }
.modal__name {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  margin: 14px 0 28px;
}
.modal__name span {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--color-accent);
}
.modal__section + .modal__section { margin-top: 22px; }
.modal__section h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.modal__section ul { display: grid; gap: 8px; }
.modal__section li {
  position: relative;
  padding-left: 14px;
  font-size: 0.97rem;
  color: var(--color-ink-soft);
  line-height: 1.65;
}
.modal__section li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
}
.modal__quote {
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--color-bg);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 12px 12px 0;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.75;
}

/* Why JJAM? — 독립 섹션 · OUR SERVICES 스타일 대형 제목 · 가운데 정렬 · 한 줄 */
.why { background: var(--color-white); text-align: center; }
.why__giant { display: inline-block; margin-bottom: 8px; }
.why__giant span { display: inline; color: var(--color-accent); } /* 한 줄 유지 + JJAM? 레드 */
.why__grid {
  margin: 48px auto 0;
  max-width: 960px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 52px 40px;
}
/* 관리자에서 항목 수가 바뀌면 자동 조정 (4개 → 2×2, 그 이상 → 균등 채움) */
.why__grid.n4 { max-width: 860px; grid-template-columns: repeat(2, 1fr); }
.why__grid.nmany { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.why-item { padding-top: 26px; border-top: 2px solid var(--color-line); transition: border-color 0.3s; }
.why-item:hover { border-top-color: var(--color-accent); }
.why-item__num {
  display: block;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.why-item h3 {
  font-size: 1.22rem;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
}
.why-item p {
  font-size: 0.97rem;
  color: var(--color-ink-soft);
  line-height: 1.75;
}

/* ===== Portfolio (카테고리 슬라이더 + 모션 블러) ===== */
.portfolio { background: var(--color-bg); overflow: hidden; }
.portfolio .eyebrow { margin-bottom: 22px; }
.pf-tabs { display: flex; flex-wrap: wrap; gap: 10px; }
.pf-tab {
  padding: 9px 18px; border: 1px solid var(--color-line); border-radius: 100px;
  background: var(--color-white); font-size: 0.9rem; font-weight: 600; color: var(--color-ink-soft);
  cursor: pointer; transition: 0.2s;
}
.pf-tab:hover { border-color: var(--color-accent); color: var(--color-ink); }
.pf-tab.on { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }

.pf-slider { position: relative; overflow: hidden; margin-top: 40px; padding: 24px 0 4px; }
.pf-slider .wm {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  font-size: clamp(4rem, 15vw, 11rem); font-weight: 900; letter-spacing: -0.04em;
  color: var(--color-ink); pointer-events: none; white-space: nowrap; z-index: 0;
  display: flex; line-height: 1; transition: opacity 0.55s ease;
}
.pf-slider .wm.fade { opacity: 0; }
.pf-slider .wm span { opacity: 0; transform: translateY(0.18em); filter: blur(8px); }
.pf-slider .wm.write span { animation: wmWrite 0.28s cubic-bezier(0.22,1,0.36,1) forwards; }
@keyframes wmWrite { to { opacity: 0.08; transform: translateY(0); filter: blur(0); } }

.pf-viewport { position: relative; z-index: 1; }
.pf-track { display: flex; gap: 18px; will-change: transform; transition: transform 0.6s cubic-bezier(0.5,0,0.2,1); }
.pf-track.is-sliding { animation: slideBlur 0.55s cubic-bezier(0.4,0,0.25,1); }
@keyframes slideBlur { 0%{filter:blur(0)} 20%{filter:blur(11px)} 100%{filter:blur(0)} }

.pf-slide {
  position: relative; flex: 0 0 auto; width: 58%;
  border: 0; padding: 0; background: none;
  cursor: pointer; opacity: 0.4; transform: scale(0.88);
  transition: opacity 0.5s, transform 0.5s cubic-bezier(0.22,1,0.36,1);
  display: flex; flex-direction: column;
}
.pf-slide .pf-smedia {
  position: relative; display: block; width: 100%; aspect-ratio: 16/9;
  background: #111; border-radius: 12px; overflow: hidden;
}
.pf-slide.active { opacity: 1; transform: scale(1); }
.pf-slide.active .pf-smedia { box-shadow: 0 30px 70px rgba(0,0,0,0.22); }
.pf-slide img { width: 100%; height: 100%; object-fit: cover; }
.pf-slide iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.pf-slide .pf-play {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  width: 56px; height: 56px; border-radius: 50%; background: rgba(190,45,47,0.95);
  display: flex; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s;
}
.pf-slide.active .pf-play { width: 64px; height: 64px; }
.pf-slide:not(.active):hover .pf-play { opacity: 1; }
.pf-slide .pf-play::before { content:""; margin-left: 3px; border-left: 15px solid #fff; border-top: 9px solid transparent; border-bottom: 9px solid transparent; }
/* 제목: 썸네일 아래 가운데 표시 (유튜브 스타일) */
.pf-slide .pf-stit {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-top: 22px; padding: 0 10px; color: var(--color-ink);
  font-size: 0.98rem; font-weight: 700; line-height: 1.5; text-align: center;
}
.pf-slide .pf-stit:empty { display: none; }

.pf-nav {
  position: absolute; top: calc(50% - 32px); z-index: 3; width: 46px; height: 46px;
  border-radius: 50%; border: 0; background: var(--color-white); box-shadow: 0 6px 20px rgba(0,0,0,0.15);
  color: var(--color-ink); font-size: 1.4rem; cursor: pointer; display: flex; align-items: center; justify-content: center;
  opacity: 0; /* 진입 시 천천히 나타남 (PORTFOLIO 글씨 사라짐과 반대) */
  transition: opacity 0.8s ease, background 0.2s, color 0.2s;
}
.pf-slider.show-nav .pf-nav { opacity: 1; }
.pf-nav:hover { background: var(--color-accent); color: #fff; }
.pf-nav.prev { left: 13%; } .pf-nav.next { right: 13%; }

.pf-foot { position: relative; z-index: 2; display: flex; align-items: center; gap: 20px; max-width: var(--container); margin: 26px auto 0; padding: 0 28px; }
.pf-count { font-size: 0.85rem; font-weight: 700; letter-spacing: 0.05em; color: var(--color-ink-soft); font-variant-numeric: tabular-nums; }
.pf-count .cur { color: var(--color-accent); font-weight: 700; }
.pf-bar { flex: 1; height: 2px; background: var(--color-line); position: relative; overflow: hidden; border-radius: 2px; }
.pf-bar span { position: absolute; left: 0; top: 0; height: 100%; background: var(--color-accent); width: 10%; transition: width 0.5s cubic-bezier(0.5,0,0.2,1); }
.pf-dots { display: flex; gap: 7px; }
.pf-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--color-line); border: 0; padding: 0; cursor: pointer; transition: 0.2s; }
.pf-dot.on { background: var(--color-accent); width: 20px; border-radius: 5px; }

@media (max-width: 640px) { .pf-slide { width: 84%; } .pf-nav { display: none; } }

/* 포트폴리오 제목(위 섹션과 동일 크기) */
.portfolio .giant-title { margin-bottom: 14px; }
.pf-sub { font-size: 1.05rem; color: var(--color-ink-soft); line-height: 1.7; margin-bottom: 30px; }

/* 더보기 → 그리드 토글 */
.pf-more-wrap { margin-top: 40px; text-align: center; }
/* 더보기/접기 버튼: 칙칙한 다크아웃라인 → 브랜드 레드 */
#pfMore { border-color: var(--color-accent); color: var(--color-accent); background: transparent; }
#pfMore:hover { background: var(--color-accent); color: #fff; }
#pfMore span { font-size: 0.8em; color: inherit; margin-left: 2px; }
.pf-grid { display: none; grid-template-columns: repeat(3, 1fr); gap: 44px 22px; margin-top: 48px; }
.portfolio.is-grid .pf-slider { display: none; }
.portfolio.is-grid .pf-grid { display: grid; }
.pf-gtile {
  position: relative; border: 0; padding: 0; background: none; cursor: pointer;
  display: flex; flex-direction: column;
}
.pf-gthumb {
  position: relative; display: block; width: 100%; aspect-ratio: 16/9;
  background: #111; border-radius: 12px; overflow: hidden;
}
.pf-gtile img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.pf-gtile:hover img { transform: scale(1.06); }
.pf-gtile iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.pf-gplay {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%) scale(0.85);
  width: 50px; height: 50px; border-radius: 50%; background: rgba(190,45,47,0.92);
  display: flex; align-items: center; justify-content: center; opacity: 0; transition: 0.3s;
}
.pf-gtile:hover .pf-gplay { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.pf-gplay::before { content: ""; margin-left: 3px; border-left: 13px solid #fff; border-top: 8px solid transparent; border-bottom: 8px solid transparent; }
/* 제목: 썸네일 아래 가운데 표시 (유튜브 스타일) */
.pf-gtit {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  margin-top: 16px; padding: 0 6px; color: var(--color-ink);
  font-size: 0.9rem; font-weight: 600; line-height: 1.5; text-align: center;
}
.pf-gtit:empty { display: none; }
.pf-gtile.playing .pf-gplay { opacity: 0; }
.portfolio.is-grid .pf-gtile { animation: gridIn 0.5s var(--ease) backwards; }
@keyframes gridIn { from { opacity: 0; transform: translateY(18px) scale(0.97); } to { opacity: 1; transform: none; } }
@media (max-width: 900px) { .pf-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pf-grid { grid-template-columns: 1fr; } }

/* ===== Services (dark, row list) ===== */
.services {
  background: var(--color-dark);
  color: var(--color-white);
}
.services__layout {
  display: grid;
  grid-template-columns: 0.9fr 1.6fr;
  gap: 64px;
  align-items: start;
}
.services__head { position: static; }
.services__head .giant-title { margin-bottom: 28px; }
.services__sub {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
}
.services__rows { display: flex; flex-direction: column; }
.svc-row {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr auto;
  gap: 32px;
  align-items: center;
  padding: 38px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.svc-row:first-child { border-top: 1px solid rgba(255, 255, 255, 0.14); }
.svc-row__title h3 {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.svc-row__title p {
  margin-top: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.svc-row__desc {
  font-size: 0.98rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.75;
}
.svc-row__desc strong {
  color: var(--color-white);
  font-weight: 700;
  white-space: nowrap; /* 강조 문구가 중간에 끊기지 않도록 */
}
.svc-row__icon {
  display: inline-flex;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.3s, transform 0.3s var(--ease);
}
.svc-row__icon svg { width: 36px; height: 36px; }
.svc-row:hover .svc-row__icon {
  color: var(--color-accent);
  transform: scale(1.1);
}

/* ===== Client (로고 스트립, 플레이스홀더) ===== */
.client { background: var(--color-white); }
.client__head { text-align: center; margin-bottom: 52px; }
.client__title-lg { display: inline-block; margin-bottom: 16px; }
.client__title-lg span { display: inline; color: var(--color-accent); } /* 한 줄 유지 + CLIENTS 레드 */
.client__sub {
  font-size: 1.02rem;
  color: var(--color-ink-soft);
  line-height: 1.7;
}
.client__grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}
.client__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 16 / 7;
  background: #f2f1ed;
  border: 1px solid var(--color-line);
  border-radius: 14px;
  transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}
.client__logo:hover {
  transform: translateY(-4px);
  border-color: rgba(190, 45, 47, 0.3);
  background: var(--color-white);
}
.client__logo span {
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: #cbc7b7;
}
.client__logo img { max-width: 78%; max-height: 62%; object-fit: contain; }
.client__logo .client__name {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-ink-soft);
  padding: 0 10px;
  text-align: center;
}
.client__note {
  margin-top: 30px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--color-ink-soft);
}

/* ===== Contact (다크, 박스 없는 디자인) ===== */
.contact {
  background: var(--color-dark);
  color: var(--color-white);
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 88px;
  align-items: start;
}

/* 왼쪽: 고민 영역 */
.concerns__label {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.concerns__title {
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.concerns__sub {
  font-size: 0.97rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.75;
}
.concerns__head {
  margin-top: 40px;
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
}
.concerns__list li {
  position: relative;
  padding: 15px 0 15px 30px;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.concerns__list li::before {
  content: "✕";
  position: absolute;
  left: 2px;
  top: 50%;
  transform: translateY(-50%);
  font-weight: 800;
  color: var(--color-accent);
}
.concerns__contact {
  margin-top: 36px;
  display: grid;
  gap: 16px;
}
.concerns__contact dt {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.concerns__contact dd { font-size: 1rem; font-weight: 600; }
.concerns__contact dd a:hover { color: var(--color-accent); }

/* 오른쪽: 문의 폼 */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
.form-field label,
.form-field legend {
  font-size: 0.92rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
}
.form-field legend { margin-bottom: 10px; }
.form-field em {
  font-style: normal;
  color: var(--color-accent);
  font-size: 0.55em;
  vertical-align: middle;
}
.form-field input[type="text"],
.form-field input[type="tel"],
.form-field input[type="email"],
.form-field input[type="url"],
.form-field textarea {
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--color-white);
  background: var(--color-dark-soft);
  border: 1px solid var(--color-line-dark);
  border-radius: 10px;
  padding: 14px 16px;
  transition: border-color 0.2s, box-shadow 0.2s;
  resize: vertical;
  width: 100%;
}
.form-field input::placeholder,
.form-field textarea::placeholder { color: rgba(255, 255, 255, 0.32); }
.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(190, 45, 47, 0.2);
}

/* 문의 유형 칩 */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span {
  display: inline-block;
  padding: 11px 18px;
  border: 1px solid var(--color-line-dark);
  border-radius: 100px;
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.65);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.chip:hover span { border-color: var(--color-accent); color: var(--color-white); }
.chip input:checked + span {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* 파일첨부 */
.file-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  padding: 12px 20px;
  border: 1px solid var(--color-line-dark);
  border-radius: 100px;
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
  transition: border-color 0.2s;
}
.file-btn:hover { border-color: var(--color-accent); }
.file-btn svg { width: 16px; height: 16px; }
.file-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent);
}
.file-note {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.65;
}
.file-note strong { color: rgba(255, 255, 255, 0.85); }

/* 개인정보 동의 */
.privacy-box {
  max-height: 150px;
  overflow-y: auto;
  background: var(--color-dark-soft);
  border: 1px solid var(--color-line-dark);
  border-radius: 10px;
  padding: 18px 20px;
  font-size: 0.87rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  overscroll-behavior: contain;
}
.privacy-box::-webkit-scrollbar { width: 8px; }
.privacy-box::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.22); border-radius: 8px; }
.privacy-box::-webkit-scrollbar-track { background: transparent; }
.privacy-box strong { color: rgba(255, 255, 255, 0.85); }
.agree-check {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}
.agree-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

/* 제출 버튼 (카카오 옐로우) */
.btn--submit {
  background: var(--color-kakao);
  color: var(--color-kakao-ink);
  font-weight: 800;
  border-radius: 12px;
}
.btn--submit:hover { filter: brightness(1.04); }

.form-note {
  font-size: 0.9rem;
  color: var(--color-accent);
  min-height: 1.4em;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-dark);
  border-top: 1px solid var(--color-line-dark);
  padding: 64px 0 48px;
  color: var(--color-white);
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.1fr 1.5fr 1.2fr;
  gap: 48px;
  align-items: start;
}
.footer__logo-img { height: 46px; width: auto; display: block; }
.footer__copy {
  margin-top: 22px;
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.7;
}
.footer__col-title {
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 20px;
}
.footer__col-title span { color: rgba(255, 255, 255, 0.5); font-weight: 600; font-size: 0.9em; }
.footer__list { display: grid; gap: 11px; }
.footer__list li {
  font-size: 0.93rem;
  color: rgba(255, 255, 255, 0.62);
  line-height: 1.6;
}
.footer__list li span {
  display: inline-block;
  min-width: 40px;
  color: rgba(255, 255, 255, 0.4);
  font-weight: 600;
}
.footer__list a { color: rgba(255, 255, 255, 0.85); transition: color 0.2s; }
.footer__list a:hover { color: var(--color-accent); }
.footer__btns { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.footer__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 700;
  border: 1px solid var(--color-line-dark);
  color: #fff;
  transition: border-color 0.2s, background 0.2s, color 0.2s, filter 0.2s;
}
.footer__btn:hover { border-color: var(--color-accent); }
.footer__btn svg { width: 15px; height: 15px; }
.footer__btn--kakao {
  background: var(--color-kakao);
  color: var(--color-kakao-ink);
  border-color: var(--color-kakao);
}
.footer__btn--kakao:hover { filter: brightness(1.05); border-color: var(--color-kakao); }
@media (max-width: 860px) {
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 40px 36px; }
  .footer__brand { grid-column: 1 / -1; }
}

/* ===== Responsive ===== */
@media (max-width: 1080px) {
  .services__layout { grid-template-columns: 1fr; gap: 44px; }
  .services__head { position: static; }
}

@media (max-width: 980px) {
  .why__grid { grid-template-columns: 1fr; }
  .client__grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 760px) {
  .svc-row {
    grid-template-columns: 1fr auto;
    grid-template-areas: "title icon" "desc desc";
    gap: 14px 20px;
    padding: 30px 0;
  }
  .svc-row__title { grid-area: title; }
  .svc-row__desc { grid-area: desc; }
  .svc-row__icon { grid-area: icon; }
}

@media (max-width: 900px) {
  .section { padding: 100px 0; }
  .about__grid, .contact__grid { grid-template-columns: 1fr; gap: 52px; }
  .giant-title { margin-bottom: 44px; }
  .why { margin-top: 90px; }
  .about__ceo-card { left: 16px; bottom: 16px; padding: 16px 22px; }
}

@media (max-width: 640px) {
  :root { --header-h: 64px; }
  .container { padding: 0 20px; }
  .header__inner { display: flex; justify-content: space-between; }
  .header__nav, .header__actions { display: none; }
  .header__menu-btn { display: flex; }
  .header__logo img { height: 38px; }
  .br-desktop { display: none; }
  .section { padding: 72px 0; }

  /* 대형 제목 공통 축소 */
  .giant-title { font-size: clamp(2rem, 9vw, 2.6rem); margin-bottom: 30px; }

  /* Hero */
  .hero__title { font-size: clamp(1.6rem, 7.4vw, 2.2rem); }
  .hero__desc { font-size: 0.97rem; margin-top: 22px; line-height: 1.7; }
  .hero__actions { margin-top: 32px; gap: 10px; }
  .hero__actions .btn { padding: 14px 24px; font-size: 0.95rem; }

  /* About */
  .about__grid { grid-template-columns: 1fr; gap: 34px; }
  .about__title { font-size: clamp(1.5rem, 6.4vw, 1.9rem); margin: 18px 0 26px; }
  .about__body p { font-size: 0.98rem; }
  .about__ceo-card { left: 14px; bottom: 14px; padding: 13px 18px; }
  .ceo-name { font-size: 1rem; }

  /* Services (dark) */
  .services__head .giant-title { margin-bottom: 14px; }
  .services__sub { font-size: 0.97rem; }
  .svc-row { padding: 26px 0; }
  .svc-row__title h3 { font-size: 1.18rem; }
  .svc-row__desc { font-size: 0.94rem; }

  /* Why JJAM */
  .why__grid { max-width: 340px; gap: 40px; }

  /* Portfolio: 모바일은 슬라이더 제외 → 그리드로 */
  .pf-slider, .pf-more-wrap { display: none; }
  .pf-grid { display: grid !important; grid-template-columns: repeat(2, 1fr); gap: 24px 10px; margin-top: 26px; }
  .pf-sub { font-size: 0.96rem; margin-bottom: 22px; }
  .pf-tabs { gap: 8px; }
  .pf-tab { padding: 8px 14px; font-size: 0.85rem; }
  .pf-gtit { font-size: 0.78rem; margin-top: 7px; padding: 0 2px; }

  /* Client */
  .client__grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .client__title-lg { font-size: clamp(1.9rem, 9vw, 2.4rem); }
  .client__sub { font-size: 0.95rem; }

  /* Contact */
  .contact__grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .concerns__title { font-size: 1.3rem; }
  .concerns__list li { font-size: 0.9rem; }

  /* Footer */
  .footer__grid { grid-template-columns: 1fr; gap: 30px; }
  .footer__logo-img { height: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__scroll i::after { animation: none; }
}