/* ============================================================
   르엘 리버파크 센텀 — ATELIER MERIDIAN
   Studio: Atelier Meridian (가상 독립 스튜디오)
   Library: GSAP + ScrollTrigger (pinned cinematic ascent)
   Tone: Midnight River + Platinum/Champagne
   레이아웃: 67층 수직 상승 — 좌측 고도 레일 + pinned 시퀀스
   01~14 및 롯데건설 폴더본과 전혀 다른 제15의 언어.
   ============================================================ */

:root {
  --ink: #05080f;          /* midnight river base */
  --ink-2: #0a1019;
  --ink-3: #0f1722;
  --slate: #18222e;
  --river: #1b3a4b;        /* deep muted river blue (not teal) */
  --river-2: #25506a;
  --platinum: #d9dee4;
  --platinum-dim: #9aa4af;
  --champagne: #cdb892;
  --champagne-2: #e7d6b0;
  --champagne-glow: rgba(205,184,146,.4);
  --line: rgba(217,222,228,.14);
  --line-2: rgba(217,222,228,.07);
  --fog: rgba(255,255,255,.04);

  --serif: "Cormorant Garamond", "Apple SD Gothic Neo", "Nanum Myeongjo", serif;
  --sans: "Inter", "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;

  --pad: clamp(20px, 5vw, 96px);
  --max: 1320px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  background: var(--ink);
  color: var(--platinum);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  letter-spacing: .01em;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--champagne); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--champagne-2);
  outline-offset: 3px;
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--champagne); color: var(--ink);
  padding: 12px 20px; font-weight: 600; border-radius: 0 0 6px 0;
}
.skip:focus { left: 0; }

.wrap { max-width: var(--max); margin: 0 auto; padding-inline: var(--pad); }

.eyebrow {
  font-size: 11.5px; letter-spacing: .42em; text-transform: uppercase;
  color: var(--champagne); font-weight: 600; display: inline-block;
}
.eyebrow.dim { color: var(--platinum-dim); }

.serif { font-family: var(--serif); font-weight: 400; }

/* ===== Floor rail (좌측 고도계) ===== */
.rail {
  position: fixed; top: 0; left: 0; bottom: 0; width: 86px; z-index: 60;
  display: flex; flex-direction: column; align-items: center;
  justify-content: space-between; padding: 26px 0 24px;
  pointer-events: none; mix-blend-mode: difference;
}
.rail__mark {
  font-family: var(--serif); font-size: 13px; letter-spacing: .2em;
  color: #fff; writing-mode: vertical-rl; text-orientation: mixed;
}
.rail__floor {
  font-variant-numeric: tabular-nums; font-size: 12px;
  color: #fff; letter-spacing: .14em; display: flex;
  flex-direction: column; align-items: center; gap: 8px;
}
.rail__num { font-family: var(--serif); font-size: 28px; line-height: 1; }
.rail__bar {
  width: 1px; height: 120px; background: rgba(255,255,255,.3);
  position: relative; overflow: hidden;
}
.rail__bar i {
  position: absolute; left: 0; right: 0; top: 0; height: 12%;
  background: #fff;
}
@media (max-width: 860px) { .rail { display: none; } }

/* ===== Header ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 70;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--pad);
  transition: background .4s ease, padding .4s ease, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.solid {
  background: rgba(5,8,15,.82);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line-2);
  padding-block: 14px;
}
.nav__brand { display: flex; align-items: baseline; gap: 12px; }
.nav__logo {
  font-family: var(--serif); font-size: 22px; letter-spacing: .14em;
  color: var(--platinum);
}
.nav__logo b { color: var(--champagne); font-weight: 600; }
.nav__sub {
  font-size: 10px; letter-spacing: .34em; text-transform: uppercase;
  color: var(--platinum-dim);
}
.nav__menu { display: flex; gap: 30px; align-items: center; }
.nav__menu a {
  font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--platinum-dim); transition: color .3s; position: relative;
}
.nav__menu a:hover { color: var(--platinum); }
.nav__cta {
  border: 1px solid var(--champagne); color: var(--champagne);
  padding: 9px 20px; border-radius: 100px; font-size: 12px;
  letter-spacing: .12em; transition: all .35s;
}
.nav__cta:hover { background: var(--champagne); color: var(--ink); }
@media (max-width: 1020px) { .nav__menu a:not(.nav__cta) { display: none; } }

/* ===== HERO ===== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: -8% 0 0; background-position: center 30%;
  background-size: cover; background-color: var(--ink-2);
  opacity: 0; transition: opacity 1.2s ease; will-change: transform;
}
.hero__bg.has-img { opacity: 1; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(5,8,15,.55) 0%, rgba(5,8,15,.1) 32%, rgba(5,8,15,.78) 88%, var(--ink) 100%),
    radial-gradient(120% 90% at 18% 110%, rgba(27,58,75,.6), transparent 60%);
}
.hero__inner {
  position: relative; z-index: 2; width: 100%;
  padding-bottom: clamp(56px, 9vh, 120px);
}
.hero__kicker {
  display: flex; gap: 16px; align-items: center; margin-bottom: 26px;
  flex-wrap: wrap;
}
.hero__kicker .pill {
  border: 1px solid var(--line); border-radius: 100px;
  padding: 6px 15px; font-size: 11px; letter-spacing: .22em;
  text-transform: uppercase; color: var(--platinum-dim);
}
.hero h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(46px, 9vw, 138px); line-height: .96;
  letter-spacing: -.01em; color: var(--platinum);
}
.hero h1 em {
  font-style: italic; color: var(--champagne-2);
}
.hero__lede {
  margin-top: 28px; max-width: 540px; color: var(--platinum-dim);
  font-size: clamp(15px, 1.7vw, 18px); line-height: 1.7;
}
.hero__facts {
  margin-top: 40px; display: flex; gap: clamp(24px, 4vw, 56px);
  flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 26px;
}
.hero__fact span { display: block; }
.hero__fact .v {
  font-family: var(--serif); font-size: clamp(26px, 3.4vw, 40px);
  color: var(--platinum); line-height: 1;
}
.hero__fact .v b { color: var(--champagne); font-weight: 600; }
.hero__fact .k {
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--platinum-dim); margin-top: 10px;
}
.hero__scroll {
  position: absolute; right: var(--pad); bottom: clamp(40px, 8vh, 90px);
  z-index: 2; writing-mode: vertical-rl; font-size: 11px;
  letter-spacing: .3em; text-transform: uppercase; color: var(--platinum-dim);
  display: flex; align-items: center; gap: 14px;
}
.hero__scroll::after {
  content: ""; width: 1px; height: 56px;
  background: linear-gradient(var(--champagne), transparent);
  animation: drop 2.2s ease-in-out infinite;
}
@keyframes drop { 0%,100%{transform:scaleY(.3);transform-origin:top;opacity:.4} 50%{transform:scaleY(1);opacity:1} }
@media (max-width: 600px) { .hero__scroll { display: none; } }

/* ===== ASCENT (pinned cinematic 67F) ===== */
.ascent { position: relative; }
.ascent__pin {
  height: 100svh; position: relative; overflow: hidden;
  display: flex; align-items: center;
}
.ascent__layer {
  position: absolute; inset: -10% 0; background-size: cover;
  background-position: center; will-change: transform; opacity: .26;
  filter: saturate(.85);
}
.ascent__veil {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, var(--ink) 0%, rgba(5,8,15,.4) 40%, rgba(5,8,15,.55) 60%, var(--ink) 100%);
}
.ascent__stage {
  position: relative; z-index: 2; width: 100%;
  display: grid; place-items: center; text-align: center;
}
.ascent__panel { position: absolute; opacity: 0; max-width: 760px; padding-inline: 24px; }
.ascent__panel .floor {
  font-family: var(--serif); font-size: clamp(60px, 14vw, 200px);
  line-height: .9; color: var(--platinum); letter-spacing: -.02em;
}
.ascent__panel .floor sup {
  font-size: .32em; color: var(--champagne); vertical-align: super;
  letter-spacing: .1em;
}
.ascent__panel h3 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(24px, 3.6vw, 44px); color: var(--champagne-2);
  margin-top: 8px;
}
.ascent__panel p {
  margin-top: 18px; color: var(--platinum-dim);
  font-size: clamp(14px, 1.6vw, 17px); max-width: 520px;
  margin-inline: auto; line-height: 1.75;
}
.ascent__progress {
  position: absolute; bottom: 38px; left: 50%; transform: translateX(-50%);
  z-index: 3; width: min(420px, 70vw); height: 1px;
  background: var(--line); overflow: hidden;
}
.ascent__progress i { position: absolute; inset: 0 100% 0 0; background: var(--champagne); }

/* ===== Section shell ===== */
.section { position: relative; padding-block: clamp(90px, 13vh, 180px); }
.section__head { max-width: 720px; margin-bottom: clamp(48px, 7vh, 96px); }
.section__head h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(32px, 5vw, 70px); line-height: 1.04;
  color: var(--platinum); margin-top: 18px; letter-spacing: -.01em;
}
.section__head h2 em { font-style: italic; color: var(--champagne-2); }
.section__head p { margin-top: 22px; color: var(--platinum-dim); max-width: 560px; }

/* ===== Location ===== */
.loc { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(40px, 6vw, 90px); align-items: center; }
@media (max-width: 900px) { .loc { grid-template-columns: 1fr; } }
.loc__media {
  position: relative; aspect-ratio: 4/5; border-radius: 2px;
  overflow: hidden; background: var(--ink-2);
}
.loc__media .img {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1s; transform: scale(1.06);
}
.loc__media .img.has-img { opacity: 1; }
.loc__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, transparent 45%, rgba(5,8,15,.5));
  pointer-events: none;
}
.loc__tag {
  position: absolute; left: 18px; bottom: 18px; z-index: 2;
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--platinum); background: rgba(5,8,15,.5);
  border: 1px solid var(--line); padding: 7px 13px; border-radius: 100px;
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
}
.loc__list { display: grid; gap: 0; }
.loc__item {
  display: grid; grid-template-columns: auto 1fr; gap: 22px;
  padding: 22px 0; border-top: 1px solid var(--line);
}
.loc__item:last-child { border-bottom: 1px solid var(--line); }
.loc__item .no {
  font-family: var(--serif); font-size: 16px; color: var(--champagne);
  letter-spacing: .1em; padding-top: 3px;
}
.loc__item h4 { font-size: 17px; color: var(--platinum); font-weight: 600; letter-spacing: .01em; }
.loc__item p { color: var(--platinum-dim); font-size: 14.5px; margin-top: 7px; }

/* ===== Composition (단지/구성) ===== */
.comp__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line-2); border: 1px solid var(--line-2);
}
@media (max-width: 760px) { .comp__grid { grid-template-columns: repeat(2, 1fr); } }
.comp__cell {
  background: var(--ink-2); padding: clamp(24px, 3vw, 40px) 24px;
  min-height: 200px; display: flex; flex-direction: column;
  justify-content: space-between;
}
.comp__cell .v {
  font-family: var(--serif); font-size: clamp(34px, 5vw, 60px);
  color: var(--platinum); line-height: 1;
}
.comp__cell .v b { color: var(--champagne); font-weight: 600; font-size: .55em; }
.comp__cell .k { font-size: 12.5px; color: var(--platinum-dim); letter-spacing: .04em; }
.comp__cell .desc { font-size: 13px; color: var(--platinum-dim); margin-top: 12px; line-height: 1.6; }

/* ===== Plans (평형) ===== */
.plans { margin-top: 56px; }
.plans__bar {
  display: flex; flex-wrap: wrap; gap: 14px;
}
.plan {
  flex: 1 1 180px; border: 1px solid var(--line); border-radius: 2px;
  padding: 24px 22px; background: linear-gradient(180deg, var(--ink-2), var(--ink));
  position: relative; overflow: hidden; transition: border-color .4s, transform .4s;
}
.plan:hover { border-color: var(--champagne); transform: translateY(-4px); }
.plan .type { font-family: var(--serif); font-size: 34px; color: var(--platinum); }
.plan .type b { font-size: .42em; color: var(--champagne); letter-spacing: .08em; }
.plan .label { font-size: 12px; color: var(--platinum-dim); letter-spacing: .14em; text-transform: uppercase; margin-top: 8px; }
.plan .meta { font-size: 13px; color: var(--platinum-dim); margin-top: 14px; line-height: 1.6; border-top: 1px solid var(--line-2); padding-top: 14px; }
.plan.rare::before {
  content: "희소"; position: absolute; top: 14px; right: 14px;
  font-size: 10px; letter-spacing: .2em; color: var(--champagne);
  border: 1px solid var(--champagne); border-radius: 100px; padding: 3px 9px;
}

/* ===== Amenity gallery ===== */
.amen { display: grid; gap: 14px; grid-template-columns: repeat(6, 1fr); }
@media (max-width: 760px) { .amen { grid-template-columns: repeat(2, 1fr); } }
.amen__card {
  position: relative; overflow: hidden; border-radius: 2px;
  min-height: 280px; background: var(--ink-2); display: flex; align-items: flex-end;
}
.amen__card .img {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1s, transform 1.2s; transform: scale(1.08);
}
.amen__card .img.has-img { opacity: .9; }
.amen__card:hover .img.has-img { transform: scale(1.12); opacity: 1; }
.amen__card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgba(5,8,15,.85)); }
.amen__card .cap { position: relative; z-index: 2; padding: 22px; }
.amen__card .cap .t { font-family: var(--serif); font-size: 22px; color: var(--platinum); }
.amen__card .cap .s { font-size: 12px; color: var(--platinum-dim); letter-spacing: .14em; text-transform: uppercase; margin-top: 6px; }
.amen__card.span3 { grid-column: span 3; }
.amen__card.span2 { grid-column: span 2; }
.amen__card.span4 { grid-column: span 4; }
.amen__card.tall { min-height: 420px; }
@media (max-width: 760px) {
  .amen__card.span3, .amen__card.span2, .amen__card.span4 { grid-column: span 2; }
}

/* ===== Timeline ===== */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-2); }
@media (max-width: 760px) { .timeline { grid-template-columns: 1fr 1fr; } }
.tl {
  background: var(--ink-2); padding: 30px 24px; position: relative;
}
.tl .step { font-size: 11px; letter-spacing: .2em; color: var(--champagne); text-transform: uppercase; }
.tl .ttl { font-family: var(--serif); font-size: 26px; color: var(--platinum); margin-top: 14px; }
.tl .note { font-size: 13px; color: var(--platinum-dim); margin-top: 8px; }

/* ===== Register / Form ===== */
.register {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-3) 100%);
  border-top: 1px solid var(--line);
}
.register__bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.2s;
}
.register__bg.has-img { opacity: .14; }
.register__grid {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 6vw, 90px);
  align-items: start;
}
@media (max-width: 900px) { .register__grid { grid-template-columns: 1fr; } }
.register__copy h2 {
  font-family: var(--serif); font-weight: 400; font-size: clamp(34px, 5vw, 62px);
  color: var(--platinum); line-height: 1.05; margin-top: 18px;
}
.register__copy h2 em { font-style: italic; color: var(--champagne-2); }
.register__copy p { color: var(--platinum-dim); margin-top: 22px; max-width: 440px; }
.register__trust { margin-top: 36px; display: grid; gap: 14px; }
.register__trust .row { display: flex; gap: 14px; align-items: baseline; font-size: 14px; }
.register__trust .row b { color: var(--champagne); font-weight: 600; min-width: 70px; letter-spacing: .08em; }
.register__trust .row span { color: var(--platinum-dim); }

.form {
  background: rgba(15,23,34,.6); border: 1px solid var(--line);
  border-radius: 4px; padding: clamp(26px, 3.4vw, 44px);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.form .field { margin-bottom: 20px; }
.form label {
  display: block; font-size: 12px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--platinum-dim); margin-bottom: 9px;
}
.form input, .form select {
  width: 100%; background: var(--ink); border: 1px solid var(--line);
  color: var(--platinum); padding: 14px 16px; border-radius: 2px;
  font-family: var(--sans); font-size: 15px; transition: border-color .3s;
}
.form input:focus, .form select:focus { border-color: var(--champagne); outline: none; }
.form select { appearance: none; cursor: pointer; }
.form .check { display: flex; gap: 11px; align-items: flex-start; font-size: 13px; color: var(--platinum-dim); }
.form .check input { width: auto; margin-top: 3px; accent-color: var(--champagne); }
.form .check a { color: var(--champagne); text-decoration: underline; text-underline-offset: 2px; }
.form button {
  width: 100%; margin-top: 8px; background: var(--champagne); color: var(--ink);
  border: none; padding: 17px; border-radius: 2px; cursor: pointer;
  font-family: var(--sans); font-size: 14px; font-weight: 700; letter-spacing: .1em;
  transition: background .3s, transform .2s;
}
.form button:hover { background: var(--champagne-2); }
.form button:active { transform: scale(.985); }
.form__ok {
  display: none; text-align: center; padding: 30px 10px;
}
.form__ok.show { display: block; }
.form__ok .mark {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 20px;
  border: 1px solid var(--champagne); display: grid; place-items: center;
  color: var(--champagne); font-size: 30px;
}
.form__ok h4 { font-family: var(--serif); font-size: 28px; color: var(--platinum); }
.form__ok p { color: var(--platinum-dim); margin-top: 12px; font-size: 14px; }

/* ===== Sticky CTA ===== */
.sticky {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%) translateY(140%);
  z-index: 80; display: flex; align-items: center; gap: 18px;
  background: rgba(5,8,15,.86); border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
  border-radius: 100px; padding: 9px 9px 9px 24px;
  transition: transform .5s cubic-bezier(.16,1,.3,1);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
  max-width: calc(100vw - 32px);
}
.sticky.show { transform: translateX(-50%) translateY(0); }
.sticky .t { font-size: 13px; color: var(--platinum); letter-spacing: .04em; }
.sticky .t b { color: var(--champagne); font-weight: 600; }
.sticky a {
  background: var(--champagne); color: var(--ink); padding: 12px 24px;
  border-radius: 100px; font-size: 13px; font-weight: 700; letter-spacing: .06em;
  white-space: nowrap; transition: background .3s;
}
.sticky a:hover { background: var(--champagne-2); }
@media (max-width: 540px) { .sticky .t { display: none; } .sticky { padding: 7px; } }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--line); padding-block: 60px 80px; }
.footer__top { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; }
.footer__brand .l { font-family: var(--serif); font-size: 24px; letter-spacing: .12em; color: var(--platinum); }
.footer__brand .l b { color: var(--champagne); }
.footer__brand p { color: var(--platinum-dim); font-size: 13px; margin-top: 12px; max-width: 320px; line-height: 1.7; }
.footer__meta { display: grid; gap: 8px; font-size: 13px; color: var(--platinum-dim); }
.footer__meta .row b { color: var(--platinum); font-weight: 600; margin-right: 10px; letter-spacing: .08em; }
.footer__disc {
  margin-top: 44px; padding-top: 26px; border-top: 1px solid var(--line-2);
  font-size: 12px; color: var(--platinum-dim); line-height: 1.8; max-width: 760px;
}
.footer__legal { margin-top: 18px; font-size: 11px; color: rgba(154,164,175,.6); letter-spacing: .04em; }

/* ===== reveal base ===== */
.reveal { opacity: 0; transform: translateY(28px); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; }
  .hero__bg, .loc__media .img, .amen__card .img, .register__bg { transition: none; }
  .hero__scroll::after { animation: none; }
}

/* 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}