/* =========================================================
   서울원 아이파크 — ATELIER ORBIT 데이터 비주얼 에디션
   독창 시그니처: 대형 복합개발을 '데이터'로 읽는 레이아웃
   공유 골격 비복제 · 새 타이포/모션/레이아웃
   ========================================================= */

:root{
  --bg:#0c0e13;
  --bg-2:#11141b;
  --panel:#161a23;
  --panel-2:#1c212c;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.06);
  --ink:#eef1f6;
  --ink-soft:#aab1c0;
  --ink-dim:#6b7384;
  --accent:#4cc2ff;      /* 데이터 시안 */
  --accent-2:#7c8cff;     /* 보조 인디고 */
  --gold:#d9b15f;         /* 프리미엄 골드 */
  --grid:rgba(76,194,255,.10);
  --mono:"Space Grotesk","Noto Sans KR",sans-serif;
  --sans:"Noto Sans KR",system-ui,sans-serif;
  --wrap:1240px;
  --r:14px;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  font-weight:300;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#04121d}

.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(20px,5vw,56px)}
.mono{font-family:var(--mono);font-feature-settings:"tnum" 1}

/* ---------- 스크롤 진행 + 좌표 HUD ---------- */
.prog{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));z-index:200;box-shadow:0 0 14px var(--accent)}
.hud{position:fixed;right:18px;bottom:18px;z-index:120;font-family:var(--mono);font-size:11px;letter-spacing:.12em;color:var(--ink-dim);background:rgba(12,14,19,.7);border:1px solid var(--line);padding:7px 11px;border-radius:999px;backdrop-filter:blur(8px);pointer-events:none}
.hud b{color:var(--accent)}
@media(max-width:760px){.hud{display:none}}

/* ---------- NAV ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:150;display:flex;align-items:center;justify-content:space-between;
  padding:16px clamp(20px,5vw,56px);transition:background .4s,border-color .4s;border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(10,12,17,.82);backdrop-filter:blur(16px);border-color:var(--line)}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--mono);font-weight:700;letter-spacing:.1em;font-size:.95rem}
.brand .dot{width:11px;height:11px;border-radius:50%;border:2px solid var(--accent);position:relative}
.brand .dot::after{content:"";position:absolute;inset:2px;border-radius:50%;background:var(--accent);transform:scale(.5)}
.nav__menu{display:flex;gap:30px;font-size:.82rem;letter-spacing:.02em;color:var(--ink-soft)}
.nav__menu a{position:relative;padding:4px 0;transition:color .25s}
.nav__menu a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);transition:width .3s var(--ease)}
.nav__menu a:hover{color:var(--ink)}
.nav__menu a:hover::after{width:100%}
.nav__cta{font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;padding:9px 18px;border:1px solid var(--accent);border-radius:999px;color:var(--accent);transition:.3s}
.nav__cta:hover{background:var(--accent);color:#04121d}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px}
.burger span{width:24px;height:2px;background:var(--ink);transition:.3s}
@media(max-width:980px){.nav__menu,.nav__cta{display:none}.burger{display:flex}}

.drawer{position:fixed;inset:0;z-index:160;background:rgba(8,10,14,.97);backdrop-filter:blur(10px);
  display:flex;flex-direction:column;justify-content:center;gap:8px;padding:40px;
  transform:translateY(-100%);transition:transform .5s var(--ease)}
.drawer.open{transform:translateY(0)}
.drawer a{font-family:var(--mono);font-size:1.6rem;letter-spacing:.04em;padding:10px 0;border-bottom:1px solid var(--line-2)}
.drawer .x{position:absolute;top:24px;right:28px;font-size:2rem;background:none;border:0;color:var(--ink);cursor:pointer}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:.84rem;letter-spacing:.04em;
  padding:14px 26px;border-radius:999px;cursor:pointer;border:1px solid transparent;transition:.32s var(--ease);font-weight:500}
.btn svg{width:17px;height:17px}
.btn--fill{background:var(--accent);color:#04121d}
.btn--fill:hover{background:#7ad3ff;transform:translateY(-2px);box-shadow:0 10px 30px -8px rgba(76,194,255,.5)}
.btn--gold{background:var(--gold);color:#1d1606}
.btn--gold:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn--ghost{border-color:var(--line);color:var(--ink)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- HERO ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;padding-bottom:6vh}
.hero__bg{position:absolute;inset:0;background:#0c0e13;background-size:cover;background-position:center;
  transition:opacity 1.2s;opacity:0}
.hero__bg.has-img{opacity:1}
.hero__grad{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,17,.55) 0%,rgba(10,12,17,.25) 40%,rgba(10,12,17,.92) 100%)}
.hero__net{position:absolute;inset:0;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:64px 64px;mask-image:radial-gradient(circle at 30% 60%,#000,transparent 75%);opacity:.7}
.hero__inner{position:relative;z-index:3;width:100%}
.hero__tag{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;
  color:var(--accent);border:1px solid rgba(76,194,255,.4);border-radius:999px;padding:7px 15px;margin-bottom:26px;
  background:rgba(76,194,255,.06)}
.hero__tag .pulse{width:7px;height:7px;border-radius:50%;background:var(--accent);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(76,194,255,.6)}50%{box-shadow:0 0 0 7px rgba(76,194,255,0)}}
.hero h1{font-family:var(--sans);font-weight:300;font-size:clamp(2.6rem,7.2vw,6rem);line-height:1.04;letter-spacing:-.02em}
.hero h1 b{font-weight:700;background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{max-width:620px;margin-top:24px;color:var(--ink-soft);font-size:1.04rem}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:38px}
/* 히어로 3요소 미니 데이터 바 */
.hero__metrics{display:flex;gap:30px;flex-wrap:wrap;margin-top:44px;padding-top:28px;border-top:1px solid var(--line)}
.hero__metrics .m .v{font-family:var(--mono);font-size:clamp(1.5rem,3.4vw,2.3rem);font-weight:700;color:var(--ink);line-height:1}
.hero__metrics .m .v span{font-size:.5em;color:var(--accent);font-weight:500}
.hero__metrics .m .k{font-size:.74rem;letter-spacing:.1em;color:var(--ink-dim);font-family:var(--mono);margin-top:7px;text-transform:uppercase}

/* ---------- SECTION 공통 ---------- */
.section{padding:clamp(80px,11vw,150px) 0;position:relative}
.eyebrow{font-family:var(--mono);font-size:.74rem;letter-spacing:.22em;color:var(--accent);text-transform:uppercase;
  display:inline-flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--accent)}
.h2{font-family:var(--sans);font-weight:300;font-size:clamp(1.9rem,4.6vw,3.4rem);line-height:1.1;letter-spacing:-.02em;margin-top:18px}
.h2 b{font-weight:700}
.lead{color:var(--ink-soft);font-size:1.02rem;max-width:58ch}
.sec-head{margin-bottom:clamp(46px,6vw,72px)}

/* ---------- DATA SIGNATURE: 차트 패널 ---------- */
.viz{display:grid;grid-template-columns:1.15fr 1fr;gap:clamp(28px,4vw,56px);align-items:center}
@media(max-width:900px){.viz{grid-template-columns:1fr}}
.chart-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:clamp(20px,3vw,34px);position:relative;overflow:hidden}
.chart-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.6}
.chart-card__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.chart-card__head h3{font-family:var(--mono);font-size:.92rem;letter-spacing:.04em;font-weight:500;color:var(--ink)}
.chart-card__head .tick{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--ink-dim);
  border:1px solid var(--line);border-radius:999px;padding:4px 10px}
.chart-wrap{position:relative;height:300px}
.chart-wrap.tall{height:340px}
.chart-legend{display:flex;flex-wrap:wrap;gap:14px 20px;margin-top:18px;font-size:.8rem;color:var(--ink-soft);font-family:var(--mono)}
.chart-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:7px;vertical-align:middle}
.chart-note{margin-top:14px;font-size:.74rem;color:var(--ink-dim);line-height:1.6}

/* 다중 차트 그리드 (입지/교통) */
.viz-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:clamp(20px,3vw,30px)}
@media(max-width:760px){.viz-grid{grid-template-columns:1fr}}

/* 스펙 테이블 */
.spec{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--bg-2)}
.spec__row{display:grid;grid-template-columns:130px 1fr;gap:14px;padding:15px 22px;border-bottom:1px solid var(--line-2);align-items:start}
.spec__row:last-child{border-bottom:0}
.spec__k{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;color:var(--ink-dim);text-transform:uppercase;padding-top:2px}
.spec__v{color:var(--ink);font-size:.95rem}
.spec__v b{color:var(--accent);font-weight:500}

/* ---------- 프로그램(다섯 원) 카드 ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:900px){.cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.cards{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;transition:.4s var(--ease);position:relative;overflow:hidden}
.card:hover{border-color:rgba(76,194,255,.4);transform:translateY(-4px);background:var(--panel-2)}
.card__no{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;color:var(--accent)}
.card__en{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;color:var(--ink-dim);text-transform:uppercase;margin-top:18px}
.card h3{font-size:1.18rem;font-weight:500;margin-top:6px}
.card p{color:var(--ink-soft);font-size:.92rem;margin-top:12px}
.card .arc{position:absolute;right:-30px;bottom:-30px;width:120px;height:120px;border:1px solid var(--line);border-radius:50%;opacity:.5;transition:.5s var(--ease)}
.card:hover .arc{transform:scale(1.25);border-color:rgba(76,194,255,.3)}

/* ---------- 갤러리 ---------- */
.gal{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:200px;gap:14px}
.gal figure{position:relative;border-radius:var(--r);overflow:hidden;background:var(--panel)}
.gal .bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s,transform 6s var(--ease)}
.gal .bg.has-img{opacity:1}
.gal figure:hover .bg{transform:scale(1.06)}
.gal figcaption{position:absolute;left:18px;bottom:16px;z-index:2;font-family:var(--mono);font-size:.78rem;letter-spacing:.08em;color:#fff;text-shadow:0 1px 12px rgba(0,0,0,.6)}
.gal figure::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(8,10,14,.7),transparent 55%);z-index:1}
.g-a{grid-column:span 7;grid-row:span 2}
.g-b{grid-column:span 5}
.g-c{grid-column:span 5}
.g-d{grid-column:span 7}
@media(max-width:760px){.gal{grid-auto-rows:160px}.g-a,.g-b,.g-c,.g-d{grid-column:span 12}.g-a{grid-row:span 2}}

/* ---------- 평면 ---------- */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
@media(max-width:760px){.plans{grid-template-columns:repeat(2,1fr)}}
.plan{border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;background:var(--panel);transition:.35s var(--ease)}
.plan:hover{border-color:var(--gold);transform:translateY(-3px)}
.plan .ty{font-family:var(--mono);font-size:1.7rem;font-weight:700;color:var(--ink)}
.plan .ty span{font-size:.5em;color:var(--ink-dim)}
.plan .bar{height:4px;border-radius:4px;background:var(--line);margin:14px 0;overflow:hidden}
.plan .bar i{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));width:0;transition:width 1.1s var(--ease)}
.plan .meta{font-size:.84rem;color:var(--ink-soft)}

/* ---------- 일정 타임라인 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:20px}
@media(max-width:760px){.timeline{grid-template-columns:1fr;gap:6px}}
.tstep{padding:26px 22px 26px 0;position:relative;border-top:1px solid var(--line)}
.tstep::before{content:"";position:absolute;top:-5px;left:0;width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(76,194,255,.15)}
.tstep .ph{font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;color:var(--accent)}
.tstep h4{font-size:1.05rem;font-weight:500;margin:8px 0 4px}
.tstep p{font-size:.85rem;color:var(--ink-soft)}
@media(max-width:760px){.tstep{border-top:0;border-left:1px solid var(--line);padding:0 0 24px 22px}.tstep::before{left:-5px;top:2px}}

/* ---------- 등록 폼 ---------- */
.reg{display:grid;grid-template-columns:1fr 1fr;gap:clamp(34px,5vw,68px);align-items:start}
@media(max-width:900px){.reg{grid-template-columns:1fr}}
.form{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:clamp(26px,3vw,40px)}
.field{margin-bottom:18px}
.field label{display:block;font-family:var(--mono);font-size:.74rem;letter-spacing:.08em;color:var(--ink-soft);margin-bottom:9px;text-transform:uppercase}
.field input,.field select{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px 16px;color:var(--ink);font-family:var(--sans);font-size:.95rem;transition:.25s}
.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(76,194,255,.12)}
.field input::placeholder{color:var(--ink-dim)}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:.84rem;color:var(--ink-soft);margin:6px 0 22px;cursor:pointer}
.agree input{margin-top:4px;accent-color:var(--accent)}
.form__msg{display:none;margin-top:16px;padding:14px 16px;border-radius:10px;font-size:.9rem;align-items:center;gap:10px}
.form__msg.ok{display:flex;background:rgba(76,194,255,.1);border:1px solid rgba(76,194,255,.4);color:var(--accent)}
.form__msg.err{display:flex;background:rgba(255,107,107,.1);border:1px solid rgba(255,107,107,.4);color:#ff8a8a}
.contact-line{font-family:var(--mono)}
.contact-line b{font-size:1.6rem;color:var(--ink);letter-spacing:.02em}

/* ---------- FOOTER ---------- */
.footer{border-top:1px solid var(--line);padding:60px 0 40px;background:var(--bg-2)}
.footer__brand{display:flex;align-items:center;gap:11px;font-family:var(--mono);font-weight:700;letter-spacing:.1em;margin-bottom:22px}
.footer__legal{font-size:.85rem;color:var(--ink-soft);line-height:1.9}
.footer__disc{margin-top:22px;padding-top:22px;border-top:1px solid var(--line-2);font-size:.76rem;color:var(--ink-dim);line-height:1.85}

/* ---------- 퀵 ---------- */
.quick{position:fixed;right:18px;bottom:64px;z-index:130;display:flex;flex-direction:column;gap:10px}
.quick a{width:50px;height:50px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--panel);border:1px solid var(--line);color:var(--ink-soft);transition:.3s;position:relative}
.quick a svg{width:20px;height:20px}
.quick a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.quick a.primary{background:var(--accent);color:#04121d;border-color:var(--accent)}
.quick a .qt{position:absolute;right:60px;white-space:nowrap;font-size:.76rem;background:var(--panel);border:1px solid var(--line);
  padding:6px 12px;border-radius:8px;opacity:0;pointer-events:none;transition:.3s;color:var(--ink)}
.quick a:hover .qt{opacity:1}
@media(max-width:760px){.quick{bottom:18px;right:14px}.quick a{width:46px;height:46px}}

/* ---------- 팝업 ---------- */
.mask{position:fixed;inset:0;z-index:180;background:rgba(6,8,12,.78);backdrop-filter:blur(6px);display:none;align-items:center;justify-content:center;padding:24px}
.mask.show{display:flex}
.popup{max-width:380px;width:100%;background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.popup__img{height:170px;background-size:cover;background-position:center;background-color:var(--panel-2)}
.popup__body{padding:26px}
.popup__body h3{font-size:1.3rem;font-weight:500;margin:10px 0}
.popup__body p{color:var(--ink-soft);font-size:.92rem}
.popup__foot{display:flex;align-items:center;justify-content:space-between;padding:14px 26px;border-top:1px solid var(--line-2);font-size:.82rem;color:var(--ink-soft)}
.popup__foot label{display:flex;gap:7px;align-items:center;cursor:pointer}
.popup__foot button{background:none;border:0;color:var(--ink-dim);cursor:pointer;font-size:.84rem}

/* ---------- REVEAL ---------- */
[data-reveal]{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal="left"]{transform:translateX(-32px)}
[data-reveal="right"]{transform:translateX(32px)}
[data-reveal="left"].in,[data-reveal="right"].in{transform:none}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1!important;transform:none!important}
  .hero__bg{opacity:1}
}

/* PLOT-KO-WRAP: 한글 어절 단위 줄바꿈 + 오버플로 방지 (어떤 폭에서도 자연스럽게) */
:where(html){word-break:keep-all;overflow-wrap:break-word}

/* 예시 평면/배치도(원본 도면 부재 시 대체) · 테마무관 */
.ex-plan{--plan-accent:currentColor;margin:30px auto 4px}
.ex-plan>svg{display:block;width:100%;max-width:720px;margin:0 auto;background:color-mix(in srgb,currentColor 5%,transparent);border:1px solid color-mix(in srgb,currentColor 20%,transparent);border-radius:16px;padding:14px}
.ex-plan--wide>svg{max-width:880px}
.ex-plan--sec{padding:clamp(48px,8vw,90px) clamp(18px,5vw,40px)}
.ex-plan__h{max-width:880px;margin:0 auto 20px;text-align:center;font-size:clamp(1.3rem,2.6vw,1.9rem);font-weight:700;letter-spacing:-.01em}
.ex-plan__why{max-width:760px;margin:16px auto 0;text-align:center;font-size:.94rem;opacity:.85;line-height:1.65}
.ex-plan__cap{max-width:880px;margin:13px auto 0;text-align:center;font-size:.8rem;opacity:.62}
.ex-plan__cap b,.ex-plan__why b{font-weight:700}