/* ============================================================
   SPACE & CO. — STITCH LIGHT (공공기관 사무가구 조달)
   흰 배경 + 검정 미니멀, Source Serif(영문 액센트) + Pretendard(한글)
   매니저 패턴 클래스 구조 유지. Hero = 8장 줌인 cross-fade 시퀀스.
   ============================================================ */

:root{
  --bg: #f9f9f9;
  --bg-soft: #ffffff;
  --dark: #20232e;
  --ivory: #f4efe2;        /* 아이보리 — process·contact 섹션 배경 */
  --ink: #0a0a0a;
  --ink-soft: #52525b;     /* zinc-600 */
  --ink-mute: #a1a1aa;     /* zinc-400 */
  --line: rgba(10,10,10,0.10);
  --line-strong: rgba(10,10,10,0.22);
  --pad-x: clamp(24px, 5vw, 80px);
  --gap-section: clamp(90px, 11vw, 180px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --serif: 'Source Serif 4', serif;
  --sans: 'Pretendard', system-ui, -apple-system, sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg)}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  line-height:1.6;
  word-break:keep-all;        /* 한글 단어 중간 끊김 방지 — 띄어쓰기 기준 줄바꿈 */
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--ink);color:#fff}

/* ============ LOADER ============ */
.loader{
  position:fixed; inset:0; z-index:1000;
  background:var(--bg);
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:28px;
  transition:opacity .6s var(--ease), visibility .6s;
}
.loader.done{opacity:0; visibility:hidden}
.loader-mark{
  font-family:var(--serif);
  font-size:clamp(24px, 6vw, 40px); font-weight:700; letter-spacing:.22em; text-indent:.22em;
  color:var(--ink);
}
.loader-bar{ width:160px; height:1px; background:var(--line-strong); overflow:hidden; position:relative; }
.loader-bar span{ position:absolute; left:0; top:0; bottom:0; width:30%; background:var(--ink); animation:loaderSlide 1.3s var(--ease) infinite; }
@keyframes loaderSlide{ 0%{transform:translateX(-120%)} 100%{transform:translateX(420%)} }

/* ============ SCROLL PROGRESS ============ */
.scroll-progress{ position:fixed; left:0; top:0; height:2px; background:var(--ink); width:0; z-index:200; transition:width .1s linear; }

/* ============ NAV ============ */
.nav{
  position:fixed; left:0; right:0; top:0; z-index:100;
  display:flex; align-items:center; justify-content:space-between;
  padding:22px var(--pad-x);
  transition:background .35s var(--ease), backdrop-filter .35s, padding .35s var(--ease), border-color .35s;
  border-bottom:1px solid transparent;
}
.nav.scrolled{ background:rgba(249,249,249,0.85); backdrop-filter:saturate(180%) blur(16px); padding:14px var(--pad-x); border-bottom:1px solid var(--line); }
.nav-logo{ font-family:var(--serif); font-weight:700; letter-spacing:-0.02em; font-size:20px; color:#fff; mix-blend-mode:difference; }
.nav.scrolled .nav-logo{ color:var(--ink); mix-blend-mode:normal; }
.nav-menu{ display:flex; gap:clamp(18px,2.4vw,36px); }
.nav-menu a{ font-size:13px; font-weight:600; letter-spacing:.01em; color:#fff; mix-blend-mode:difference; transition:opacity .25s; }
.nav.scrolled .nav-menu a{ color:var(--ink); mix-blend-mode:normal; }
.nav-menu a:hover{ opacity:.5 }
.nav-cta{ display:inline-flex; align-items:center; padding:11px 22px; background:#fff; color:var(--ink); font-size:13px; font-weight:700; letter-spacing:.01em; transition:all .3s var(--ease); }
.nav.scrolled .nav-cta{ background:var(--ink); color:#fff; }
.nav-cta:hover{ transform:translateY(-1px); }
.nav-actions{ display:flex; align-items:center; gap:clamp(12px,1.6vw,22px); }
.nav-join{ font-size:13px; font-weight:700; letter-spacing:.01em; color:#fff; mix-blend-mode:difference; transition:opacity .25s; }
.nav.scrolled .nav-join{ color:var(--ink); mix-blend-mode:normal; }
.nav-join:hover{ opacity:.5; }
/* 햄버거 토글 — 데스크탑 숨김 */
.nav-toggle{ display:none; }
/* 모바일 풀스크린 메뉴 오버레이 */
.nav-overlay{ position:fixed; inset:0; z-index:9995; background:rgba(249,249,249,0.98); backdrop-filter:saturate(180%) blur(12px); display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:opacity .4s var(--ease); }
.nav-overlay.open{ opacity:1; pointer-events:auto; }
.nav-overlay-close{ position:absolute; top:20px; right:var(--pad-x); width:46px; height:46px; background:none; border:none; font-size:28px; line-height:1; color:var(--ink); cursor:pointer; }
.nav-overlay-menu{ display:flex; flex-direction:column; gap:4px; text-align:center; }
.nav-overlay-menu a{ font-family:var(--sans); font-size:clamp(26px,7vw,36px); font-weight:700; letter-spacing:-0.02em; color:var(--ink); padding:10px 24px; transition:opacity .2s; }
.nav-overlay-menu a:active{ opacity:.5; }
.nav-overlay-menu .overlay-cta{ margin-top:24px; font-size:16px; font-weight:700; color:#fff; background:var(--ink); padding:16px 44px; align-self:center; letter-spacing:.02em; }
@media (max-width:880px){
  .nav-menu{ display:none; }
  .nav-toggle{ display:flex; flex-direction:column; justify-content:center; align-items:center; gap:5px; width:34px; height:34px; padding:0; background:none; border:none; cursor:pointer; }
  .nav-toggle span{ display:block; width:24px; height:2px; background:#fff; mix-blend-mode:difference; transition:background .3s; }
  .nav.scrolled .nav-toggle span{ background:var(--ink); mix-blend-mode:normal; }
}

/* ============ HERO — 8장 줌인 cross-fade 시퀀스 ============ */
.hero{ position:relative; min-height:100vh; min-height:100svh; overflow:hidden; display:flex; align-items:center; justify-content:flex-start; }
.hero-seq{ position:absolute; inset:0; z-index:0; background:#0a0a0a; }
.hero-slide{ position:absolute; inset:0; opacity:0; animation:heroCut 32s infinite; will-change:opacity, transform; }
.hero-slide img{ width:100%; height:100%; object-fit:cover; }
@keyframes heroCut{
  0%    { opacity:0; transform:scale(1.0); }
  3%    { opacity:1; }
  12%   { opacity:1; transform:scale(1.035); }  /* 원본 그대로 시작 + 아주 살짝 줌인 */
  15%   { opacity:0; transform:scale(1.045); }
  100%  { opacity:0; transform:scale(1.0); }
}

/* ===== 변신 전환 — 비포(차가운)가 위에서 휘리릭 돌며 날아가 사라지고, 밑에서 애프터(트렌디)가 드러남 ===== */
.hero-slide--before{ z-index:2; transform-origin:62% 42%; animation-name:heroCutBefore; }
.hero-slide--after { z-index:1; animation-name:heroCutAfter; }

/* 비포: 평범하게 들어와 머물다가, 마지막에 휙 돌며 날아감 */
@keyframes heroCutBefore{
  0%    { opacity:0; transform:scale(1.0)  rotate(0deg); }
  3%    { opacity:1; transform:scale(1.0)  rotate(0deg); }
  11%   { opacity:1; transform:scale(1.035) rotate(0deg); animation-timing-function:cubic-bezier(.55,0,.92,.35); }
  16%   { opacity:0; transform:scale(0.36) rotate(48deg) translate(78%, -62%); }
  100%  { opacity:0; transform:scale(0.36) rotate(48deg) translate(78%, -62%); }
}
/* 애프터: 비포가 날아간 자리에 드러나며 살짝 안착 */
@keyframes heroCutAfter{
  0%    { opacity:0; transform:scale(1.09); animation-timing-function:cubic-bezier(.2,.7,.3,1); }
  3%    { opacity:1; transform:scale(1.07); }
  12%   { opacity:1; transform:scale(1.045); }
  15%   { opacity:0; transform:scale(1.05); }
  100%  { opacity:0; transform:scale(1.0); }
}

/* 모션 최소화 선호 시 — 회전·날림 끄고 기본 cross-fade로 */
@media (prefers-reduced-motion: reduce){
  .hero-slide--before, .hero-slide--after{ animation-name:heroCut; }
}
.hero-tint{
  position:absolute; inset:0; z-index:1;
  background:
    linear-gradient(180deg, rgba(10,10,10,0.28) 0%, rgba(10,10,10,0.04) 38%, rgba(10,10,10,0.55) 100%),
    radial-gradient(ellipse at 50% 70%, transparent 38%, rgba(10,10,10,0.22) 100%);
}
.hero-copy{ position:relative; z-index:5; text-align:left; color:#fff; padding:0 var(--pad-x); max-width:920px; }
.hero-eyebrow{
  display:inline-block; font-family:var(--sans); font-size:14px; font-weight:600;
  letter-spacing:.02em; color:rgba(255,255,255,0.92);
  margin-bottom:26px;
}
.hero-headline{ position:relative; min-height:clamp(150px, 17vw, 200px); margin:0 0 22px; }
.hero-line{
  position:absolute; left:0; top:0; width:100%;
  font-family:var(--sans); font-weight:800;
  font-size:clamp(30px, 4.2vw, 62px); line-height:1.12; letter-spacing:-0.025em;
  color:#fff; margin:0; opacity:0; white-space:nowrap;
  text-shadow:0 2px 24px rgba(0,0,0,0.55), 0 1px 4px rgba(0,0,0,0.4);
  animation:copyFade 28s infinite;
  will-change:opacity, transform;
}
@keyframes copyFade{
  0%   { opacity:0; transform:translateY(16px); }
  2%   { opacity:1; transform:translateY(0); }
  11%  { opacity:1; transform:translateY(0); }
  13%  { opacity:0; transform:translateY(-10px); }
  100% { opacity:0; }
}
.hero-sub{ font-size:clamp(14px,1.4vw,17px); line-height:1.7; color:rgba(255,255,255,0.85); margin:0 0 38px; max-width:520px; }
.hero-actions{ display:flex; gap:12px; justify-content:flex-start; flex-wrap:wrap; }

.btn{ display:inline-flex; align-items:center; justify-content:center; padding:15px 32px; font-size:14px; font-weight:700; letter-spacing:.01em; transition:all .3s var(--ease); border:1px solid transparent; }
.btn.primary{ background:#fff; color:var(--ink); }
.btn.primary:hover{ background:var(--ink); color:#fff; transform:translateY(-2px); }
.btn.ghost{ background:transparent; color:#fff; border-color:rgba(255,255,255,0.5); }
.btn.ghost:hover{ background:#fff; color:var(--ink); }
.btn.lg{ padding:18px 40px; font-size:15px; }
.btn.sent{ background:var(--ink); color:#fff; pointer-events:none; }

.hero-scroll{ position:absolute; left:50%; bottom:28px; transform:translateX(-50%); z-index:5; color:rgba(255,255,255,0.7); font-family:var(--serif); font-size:10px; letter-spacing:.4em; text-indent:.4em; animation:scrollPulse 2.4s var(--ease) infinite; }
@keyframes scrollPulse{ 0%,100%{opacity:.4; transform:translate(-50%,0)} 50%{opacity:1; transform:translate(-50%,4px)} }

/* ============ MARQUEE ============ */
.marquee-wrap{ background:#cfe9fb url(../images/page-bg.png) center/cover; color:#16314f; overflow:hidden; padding:22px 0; }
.marquee{ overflow:hidden; mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marquee-track{ display:inline-flex; align-items:center; gap:44px; white-space:nowrap; animation:marqueeRun 48s linear infinite; }
.marquee-track span{ font-family:var(--sans); font-size:clamp(18px,2vw,26px); font-weight:800; letter-spacing:-0.035em; color:#16314f; }
.marquee-track i{ font-style:normal; color:rgba(22,49,79,0.45); font-size:14px; }
@keyframes marqueeRun{ 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }

/* ============ SECTION COMMON ============ */
.section-pad{ padding:var(--gap-section) var(--pad-x); max-width:1480px; margin:0 auto; }
.section-head{ margin:0 0 clamp(48px,6vw,80px); }
.section-head.left{ display:flex; align-items:flex-end; justify-content:space-between; gap:40px; flex-wrap:wrap; }
.section-head h2{
  font-family:var(--sans); font-weight:800;
  font-size:clamp(40px,6vw,84px); line-height:0.98; letter-spacing:-0.035em;
  margin:0; color:var(--ink);
}
.section-head em{ font-family:var(--sans); font-style:normal; font-weight:800; color:var(--ink-mute); }
.section-head .lead{ font-size:clamp(14px,1.4vw,17px); color:var(--ink-soft); margin:0; max-width:420px; line-height:1.7; }

/* scroll reveal (reveal_manager → .revealed) */
[data-reveal]{ opacity:0; transform:translateY(32px); }
[data-reveal].revealed{ opacity:1; transform:translateY(0); transition:opacity .9s var(--ease), transform .9s var(--ease); }

/* ============ SHOWCASE ============ */
.showcase{ background:var(--bg); }
.showcase .section-head .lead strong{ color:#16314f; font-weight:700; }
.showcase-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:14px; }
@media (max-width:1100px){ .showcase-grid{grid-template-columns:repeat(3,1fr)} }
@media (max-width:680px){ .showcase-grid{grid-template-columns:repeat(2,1fr)} }
.showcase-card{ background:#fff; border:1px solid var(--line); overflow:hidden; position:relative; cursor:pointer; transition:border-color .45s var(--ease), transform .5s var(--ease), box-shadow .5s var(--ease); }
.showcase-card:hover{ border-color:var(--ink); transform:translateY(-7px); box-shadow:0 18px 44px rgba(10,10,10,0.14); }

/* 가운데 큰 미리보기 모달 (클릭 시 화면 중앙에 크게) */
.video-preview-modal{
  position:fixed; top:50%; left:50%;
  width:min(80vw, 1080px); aspect-ratio:16/9; max-height:80vh;
  transform:translate(-50%,-50%) scale(0.92);
  background:#000; overflow:hidden; opacity:0; pointer-events:none;
  z-index:9999; transition:opacity .35s var(--ease), transform .45s var(--ease);
  box-shadow:0 60px 140px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.12);
}
.video-preview-modal.active{ opacity:1; pointer-events:auto; transform:translate(-50%,-50%) scale(1); }
.preview-video{ width:100%; height:100%; object-fit:cover; display:block; }
@media (max-width:560px){ .video-preview-modal{ width:94vw; } }
.video-preview-backdrop{ position:fixed; inset:0; background:rgba(0,0,0,0.62); backdrop-filter:blur(2px); opacity:0; pointer-events:none; z-index:9990; transition:opacity .35s var(--ease); }
.video-preview-backdrop.active{ opacity:1; pointer-events:auto; }
.preview-close{ position:absolute; top:12px; right:12px; z-index:3; width:40px; height:40px; border-radius:50%; border:none; background:rgba(0,0,0,0.5); color:#fff; font-size:16px; line-height:1; display:flex; align-items:center; justify-content:center; cursor:pointer; transition:background .25s var(--ease); }
.preview-close:hover{ background:rgba(0,0,0,0.9); }
.showcase-media{ position:relative; aspect-ratio:3/4; overflow:hidden; background:#e4e4e7; }
.showcase-video{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
.showcase-info{ padding:20px 16px 24px; background:#cfe9fb url(../images/page-bg.png) center/cover; text-align:center; }
.showcase-info h3{ font-family:var(--sans); font-size:17px; font-weight:700; letter-spacing:-0.01em; margin:0 0 6px; color:#16314f; }
.showcase-info p{ font-size:13px; color:#2b3e54; font-weight:500; margin:0; }

/* ============ THE PROCESS — 아이보리 ============ */
.process{ background:var(--ivory); color:#16314f; }
.process .section-head h2{ color:#16314f; }
.process .section-head em{ color:#6b7d96; }
.process .section-head .lead{ color:#41506a; }
.process-list{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
@media (max-width:900px){ .process-list{grid-template-columns:repeat(2,1fr); gap:20px} }
@media (max-width:520px){ .process-list{grid-template-columns:1fr} }
.process-item{ background:#fff; border:1px solid rgba(22,49,79,0.10); border-radius:14px; padding:32px 26px; box-shadow:0 6px 22px rgba(22,49,79,0.06); transition:border-color .3s var(--ease); }
.process-item:hover{ border-color:rgba(22,49,79,0.26); }
.process-item .step-num{ display:block; font-family:var(--serif); font-size:15px; font-weight:700; color:#6b7d96; margin-bottom:18px; }
.process-item h3{ font-family:var(--sans); font-size:19px; font-weight:700; letter-spacing:-0.01em; margin:0 0 10px; color:#16314f; }
.process-item p{ font-size:13px; line-height:1.65; color:#41506a; margin:0; }

/* ============ BRANDS ============ */
.brands{ background:var(--bg); }
.brands .section-head{ text-align:center; }
.brand-board{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-left:1px solid var(--line); }
@media (max-width:900px){ .brand-board{grid-template-columns:repeat(2,1fr)} }
@media (max-width:520px){ .brand-board{grid-template-columns:1fr} }
.brand-cell{ background:#fff; border-right:1px solid var(--line); border-bottom:1px solid var(--line); min-height:170px; padding:30px 24px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px; text-align:center; transition:background .35s var(--ease); }
.brand-cell:hover{ background:#eef3f8; }
.brand-logo{ max-height:64px; max-width:200px; width:auto; object-fit:contain; transition:transform .4s var(--ease); }
.brand-logo[src*="fursys"]{ max-height:92px; max-width:210px; }
.brand-cell:hover .brand-logo{ transform:scale(1.07); }
.brand-wordmark{ font-family:'Noto Serif KR', var(--serif); font-size:22px; font-weight:900; letter-spacing:-0.02em; color:var(--ink); }
.brand-plus{ font-family:var(--serif); font-size:30px; font-weight:300; color:var(--ink-mute); line-height:1; }
.brand-more-label{ font-size:12px; color:var(--ink-mute); letter-spacing:.02em; }

/* ============ CONTACT — 아이보리 ============ */
.contact{ background:var(--ivory); color:#16314f; }
.contact .section-pad{ padding-bottom:clamp(48px,6vw,72px); }
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(40px,7vw,90px); align-items:start; }
@media (max-width:880px){ .contact-grid{grid-template-columns:1fr} }
.contact-text h2{ font-family:var(--sans); font-weight:800; font-size:clamp(40px,5.5vw,72px); line-height:1; letter-spacing:-0.035em; margin:0 0 24px; color:#16314f; }
.contact-text em{ font-family:var(--sans); font-style:normal; font-weight:800; color:#6b7d96; }
.contact-text .lead{ font-size:clamp(14px,1.4vw,17px); color:#41506a; margin:0 0 40px; line-height:1.7; }
.contact-meta{ display:flex; flex-direction:column; gap:18px; padding-top:30px; border-top:1px solid rgba(22,49,79,0.16); }
.contact-meta > div{ display:flex; flex-direction:column; gap:5px; }
.meta-label{ font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:#6b7d96; }
.contact-meta a{ font-size:16px; font-weight:600; color:#16314f; transition:opacity .25s; }
.contact-meta a:hover{ opacity:.6; }
.contact-form{ display:flex; flex-direction:column; gap:16px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
@media (max-width:520px){ .form-row{grid-template-columns:1fr} }
.contact-form label{ display:flex; flex-direction:column; gap:7px; font-size:13px; }
.contact-form label > span{ color:#41506a; letter-spacing:.04em; }
.contact-form label i{ font-style:normal; color:#c0392b; }
.contact-form input, .contact-form textarea{
  background:#ffffff; border:1px solid rgba(22,49,79,0.20); padding:14px 16px; font:inherit; font-size:14px; color:#16314f;
  transition:border-color .25s var(--ease);
}
.contact-form input::placeholder, .contact-form textarea::placeholder{ color:#9aa7b8; }
.contact-form input:focus, .contact-form textarea:focus{ outline:none; border-color:#16314f; }
.contact-form textarea{ resize:vertical; min-height:110px; }
.contact-form button{ align-self:flex-start; margin-top:6px; }
.contact-form .btn.primary.lg{ background:#16314f; color:#fff; }
.contact-form .btn.primary:hover{ background:#0f2438; transform:translateY(-2px); }
.contact-form .btn.sent{ background:#0f2438; color:#fff; }

/* ============ FOOTER ============ */
.foot{ background:var(--bg); border-top:1px solid var(--line); }
.foot-pad{ padding:70px var(--pad-x) 36px; max-width:1480px; margin:0 auto; }
.foot-grid{ display:grid; grid-template-columns:1.8fr 1fr 1fr; gap:44px; }
@media (max-width:780px){ .foot-grid{grid-template-columns:1fr 1fr} }
.foot-brand .foot-logo{ font-family:var(--serif); font-weight:700; letter-spacing:-0.01em; font-size:28px; color:var(--ink); margin:0 0 14px; }
.foot-brand p{ margin:0; font-size:13px; color:var(--ink-mute); line-height:1.6; }
.foot-h{ font-size:11px; font-weight:700; letter-spacing:.16em; color:var(--ink-mute); text-transform:uppercase; margin:0 0 16px; }
.foot a, .foot p:not(.foot-h):not(.foot-logo):not(.foot-mini){ display:block; font-size:13px; color:var(--ink-soft); margin:0 0 7px; transition:opacity .25s; }
.foot a:hover{ opacity:.5; }
.foot-mini{ font-size:11px; color:var(--ink-mute); margin-top:12px; }

@media (max-width:560px){
  .hero-title{ font-size:clamp(40px,12vw,60px); }
  .section-head.left{ flex-direction:column; align-items:flex-start; }
  /* 모바일: 헤드라인 예약 높이 축소 → 서브카피와의 빈 간격 제거 */
  .hero-headline{ min-height:84px; margin:0 0 14px; }
  .hero-sub{ margin:0 0 28px; }
  /* 모바일 hero: 16:9 가로사진이 세로화면에서 양옆 과도하게 잘리는 것 완화 — 높이 축소로 노출 폭 ↑ */
  .hero{ min-height:74svh; }
}