/* ============================================================
   스프링워터 파트너스 — 홈페이지 리뉴얼 프로토타입 v0.1
   디자인 언어: RH 스타일 (풀스크린 시네마틱 + 대형 타일 + 미니멀)
   ============================================================ */

:root {
  --cream: #FAF7F2;
  --cream-dark: #F1ECE4;
  --ink: #1A1A1A;
  --gray: #6B6B6B;
  --line: #E4DED4;
  --blue: #4fc3f7;
  --blue-deep: #2E9BD6;
  --charcoal: #141414;
  --charcoal-soft: #1F1F1F;
  --white: #FFFFFF;
  --radius: 2px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard", "Noto Sans KR", "Malgun Gothic", sans-serif;
  background: var(--cream);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
}

img, video { display: block; max-width: 100%; }

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

/* ---------- 내비게이션 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 48px;
  transition: background 0.4s var(--ease), padding 0.4s var(--ease), backdrop-filter 0.4s;
  color: var(--white);
}
.nav.scrolled {
  background: rgba(250, 247, 242, 0.92);
  backdrop-filter: blur(12px);
  padding: 14px 48px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
}
.nav.scrolled .nav-links a { color: var(--ink); }
.nav.scrolled .nav-links a.active { color: var(--blue-deep); }
.nav-logo { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: 0.02em; }
.nav-logo-icon { height: 26px; width: auto; flex-shrink: 0; }
.nav.scrolled .nav-logo { color: var(--ink); }
.nav.scrolled .nav-logo small { color: var(--gray); }
.nav-logo .dots { display: flex; gap: 3px; }
.nav-logo .dots i { width: 7px; height: 7px; border-radius: 50%; background: var(--blue); }
.nav-logo .dots i.mid { position: relative; }
.nav-logo .dots i.mid::before { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 1px solid rgba(79, 195, 247, 0.5); }
.nav-logo small { font-weight: 500; color: var(--gray); letter-spacing: 0.08em; }
.nav-links { display: flex; gap: 28px; font-size: 14px; font-weight: 500; }
.nav-links a { opacity: 0.85; transition: opacity 0.2s; }
.nav-links a:hover { opacity: 1; }
.nav-links a.active { color: var(--blue); opacity: 1; font-weight: 700; }
.nav-cta {
  padding: 10px 20px; border: 1px solid rgba(255,255,255,0.5);
  border-radius: 40px; font-size: 13px; font-weight: 600;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}
.nav.scrolled .nav-cta { border-color: var(--ink); }
.nav-cta:hover { background: var(--blue); border-color: var(--blue); color: var(--white); }

/* ---------- 히어로 (풀스크린) ---------- */
.hero {
  position: relative; height: 100vh; min-height: 640px;
  display: flex; align-items: center; justify-content: center; text-align: center;
  overflow: hidden;
}
.hero-media {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(135deg, #0E2A3A 0%, #12394F 45%, #1B5A76 100%);
}
.hero-media .label {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  color: rgba(255,255,255,0.75); font-size: 13px; letter-spacing: 0.06em;
}
.hero-media .label strong { font-size: 22px; letter-spacing: 0.12em; font-weight: 700; }
.hero-media .label span { background: rgba(255,255,255,0.12); padding: 6px 14px; border-radius: 30px; font-size: 12px; }
.hero-content { position: relative; z-index: 2; padding: 0 24px; color: var(--white); max-width: 980px; }
.hero-kicker { font-size: 13px; letter-spacing: 0.3em; text-transform: uppercase; color: var(--blue); margin-bottom: 24px; display: inline-block; padding: 8px 18px; border-radius: 30px; background: rgba(8,18,28,0.38); }
.hero-title {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
  font-weight: 800; line-height: 1.18; letter-spacing: -0.02em; margin-bottom: 28px;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
  background: rgba(8,18,28,0.34);
  padding: 0.10em 0.5em; border-radius: 14px;
  text-shadow: 0 1px 6px rgba(0,0,0,0.35), 0 4px 20px rgba(0,0,0,0.25);
}
.hero-title .thin { font-weight: 300; color: rgba(255,255,255,0.9); }
.hero-sub { font-size: clamp(1rem, 1.6vw, 1.2rem); color: rgba(255,255,255,0.92); max-width: 680px; margin: 0 auto 40px; -webkit-box-decoration-break: clone; box-decoration-break: clone; background: rgba(8,18,28,0.30); padding: 0.14em 0.7em; border-radius: 12px; text-shadow: 0 1px 4px rgba(0,0,0,0.3); }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 16px 36px; border-radius: 40px;
  font-size: 15px; font-weight: 600; transition: all 0.3s var(--ease);
}
.btn-light { background: var(--white); color: var(--ink); }
.btn-light:hover { background: var(--blue); color: var(--white); transform: translateY(-2px); }
.btn-ghost { border: 1px solid rgba(255,255,255,0.55); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-dark { background: var(--ink); color: var(--white); }
.btn-dark:hover { background: var(--blue-deep); transform: translateY(-2px); }

/* ---------- 섹션 공통 ---------- */
.section { padding: 120px 48px; }
.section-dark { background: var(--charcoal); color: var(--white); }
.section-cream-dark { background: var(--cream-dark); }
.wrap { max-width: 1280px; margin: 0 auto; }
.kicker { font-size: 12px; letter-spacing: 0.28em; text-transform: uppercase; color: var(--blue-deep); margin-bottom: 16px; font-weight: 700; }
.section-dark .kicker { color: var(--blue); }
.h2 { font-size: clamp(1.8rem, 3.4vw, 2.8rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; margin-bottom: 20px; }
.h2 + p.lede { font-size: clamp(1rem, 1.5vw, 1.15rem); color: var(--gray); max-width: 640px; margin-bottom: 56px; }
.section-dark .h2 + p.lede { color: rgba(255,255,255,0.65); }

/* ---------- 미디어 placeholder ---------- */
.media-ph {
  position: relative; overflow: hidden; border-radius: var(--radius);
  background: linear-gradient(135deg, #24424F 0%, #3A6A80 60%, #4fc3f7 130%);
  display: flex; align-items: center; justify-content: center; min-height: 280px;
  color: rgba(255,255,255,0.9);
}
.media-ph.dark { background: linear-gradient(135deg, #101010, #262626); }
.media-ph.tint { background: linear-gradient(135deg, #DCE8EC, #B9D6E0); color: #31505E; }
.media-ph .ph-inner { text-align: center; padding: 24px; }
.media-ph .ph-icon { font-size: 40px; margin-bottom: 10px; opacity: 0.9; }
.media-ph .ph-name { font-size: 15px; font-weight: 700; letter-spacing: 0.06em; margin-bottom: 4px; }
.media-ph .ph-where { font-size: 12px; opacity: 0.75; }
.media-ph.video::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,0.35));
}

/* ---------- 타일 그리드 ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.tile { position: relative; overflow: hidden; border-radius: var(--radius); background: var(--white); box-shadow: 0 1px 3px rgba(0,0,0,0.04); transition: transform 0.6s var(--ease), box-shadow 0.6s; }
.tile:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(20,20,20,0.10); }
.tile .media-ph { min-height: 220px; border-radius: 0; }
.tile-body { padding: 28px; }
.tile-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.tile-body p { font-size: 14px; color: var(--gray); }
.tile-tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 0.08em; padding: 5px 12px; border-radius: 30px; margin-bottom: 14px; }
.tag-blue { background: #E1F4FD; color: #1E7FA8; }
.tag-pink { background: #FDF0F4; color: #C2255C; }
.tag-teal { background: #E6F5F2; color: #0F766E; }
.tag-char { background: #EDEBE6; color: #444; }

/* ---------- 성과 숫자 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.stat .num { font-size: clamp(2.2rem, 4.5vw, 3.6rem); font-weight: 800; color: var(--white); letter-spacing: -0.02em; }
.stat .num em { font-style: normal; color: var(--blue); }
.stat .cap { margin-top: 8px; font-size: 13px; color: rgba(255,255,255,0.65); }

/* ---------- 파트너 / 포트폴리오 ---------- */
.partner-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; align-items: center; margin-top: 48px; }
.partner-logo { display: flex; align-items: center; justify-content: center; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 36px 28px; min-height: 120px; transition: box-shadow 0.4s var(--ease), transform 0.4s var(--ease); }
.partner-logo:hover { box-shadow: 0 14px 34px rgba(20,20,20,0.08); transform: translateY(-3px); }
.partner-logo img { max-height: 64px; max-width: 85%; width: auto; object-fit: contain; }
.partner-logo img.logo-wide { max-width: 100%; max-height: 64px; }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
@media (max-width: 960px) { .partner-grid { grid-template-columns: repeat(2, 1fr); } .portfolio-grid { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .partner-grid { grid-template-columns: 1fr; } }

/* ---------- 사람들 이야기 (컬렉션 타일) ---------- */
.people-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.people-card { position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4 / 5; }
.people-card .media-ph { position: absolute; inset: 0; min-height: 0; border-radius: 0; }
.people-card .pc-overlay {
  position: absolute; inset: auto 0 0 0; padding: 20px;
  background: linear-gradient(to top, rgba(0,0,0,0.75), transparent);
  color: var(--white); z-index: 2;
}
.people-card .pc-overlay h4 { font-size: 15px; font-weight: 700; }
.people-card .pc-overlay p { font-size: 12px; opacity: 0.8; }

/* ---------- 뉴스 ---------- */
.news-list { border-top: 1px solid var(--line); }
.news-item { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 26px 0; border-bottom: 1px solid var(--line); transition: padding 0.3s; }
.news-item:hover { padding-left: 12px; }
.news-item .ni-date { font-size: 12px; color: var(--gray); white-space: nowrap; }
.news-item .ni-title { font-size: 17px; font-weight: 600; }

/* ---------- CTA ---------- */
.cta {
  position: relative; overflow: hidden;
  padding: 140px 48px; text-align: center; color: var(--white);
  background: linear-gradient(135deg, #102A3A, #1B4A63);
}
.cta .media-ph { position: absolute; inset: 0; border-radius: 0; opacity: 0.45; }
.cta .wrap { position: relative; z-index: 2; }
.cta h2 { font-size: clamp(1.9rem, 3.8vw, 3rem); font-weight: 800; margin-bottom: 18px; }
.cta p { color: rgba(255,255,255,0.75); max-width: 560px; margin: 0 auto 36px; }

/* ---------- 푸터 ---------- */
.footer { background: #101010; color: rgba(255,255,255,0.7); padding: 64px 48px 40px; }
.footer .wrap { display: flex; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.footer h5 { color: var(--white); font-size: 14px; margin-bottom: 16px; }
.footer ul { list-style: none; }
.footer li { font-size: 13px; margin-bottom: 10px; }
.footer a:hover { color: var(--blue); }
.footer .fbottom { margin-top: 56px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.12); display: flex; justify-content: space-between; font-size: 12px; flex-wrap: wrap; gap: 12px; }

/* ---------- 스크롤 리빌 ---------- */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 상세 페이지 공통 ---------- */
.page-hero { position: relative; min-height: 60vh; display: flex; align-items: flex-end; padding: 180px 48px 80px; color: var(--white); background: linear-gradient(135deg, #102A3A, #1B4A63); }
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: var(--hero-bg, none);
  background-size: cover; background-position: center;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(16,42,58,0.78) 0%, rgba(27,74,99,0.42) 100%);
}
.page-hero .wrap { width: 100%; max-width: 1280px; margin: 0 auto; position: relative; z-index: 2; }
.page-hero h1 { font-size: clamp(2rem, 4.5vw, 3.6rem); font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.page-hero p { max-width: 620px; color: rgba(255,255,255,0.78); font-size: 17px; }

/* ---------- 단계 리스트 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: step; }
.step { background: var(--white); border-radius: var(--radius); padding: 32px 26px; position: relative; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
.step .no { font-size: 12px; font-weight: 800; color: var(--blue-deep); letter-spacing: 0.2em; margin-bottom: 14px; }
.step h4 { font-size: 17px; margin-bottom: 10px; }
.step p { font-size: 13.5px; color: var(--gray); }

/* ---------- 도구 카드 ---------- */
.tool-card { background: var(--white); border-radius: var(--radius); overflow: hidden; transition: transform 0.5s var(--ease), box-shadow 0.5s; }
.tool-card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(20,20,20,0.10); }
.tool-card .media-ph { min-height: 190px; border-radius: 0; }
.tool-card .tc-body { padding: 26px; }
.tool-card .tc-body h3 { font-size: 18px; margin-bottom: 8px; }
.tool-card .tc-body p { font-size: 13.5px; color: var(--gray); margin-bottom: 16px; }
.tool-badge { font-size: 11px; font-weight: 700; padding: 4px 10px; border-radius: 30px; margin-left: 6px; vertical-align: 2px; }
.tool-badge.free { background: #E1F4FD; color: #1E7FA8; }
.tool-badge.login { background: #EDEBE6; color: #555; }

/* ---------- 문의 폼 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--line); border-radius: var(--radius);
  font-size: 14px; font-family: inherit; background: var(--white); color: var(--ink);
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--blue); }
.contact-info { background: var(--charcoal); color: var(--white); padding: 40px; border-radius: var(--radius); }
.contact-info h3 { font-size: 20px; margin-bottom: 20px; }
.contact-info .ci-item { display: flex; gap: 12px; margin-bottom: 18px; font-size: 14px; color: rgba(255,255,255,0.8); }
.contact-info .ci-item strong { color: var(--blue); }

/* ---------- 반응형 ---------- */
@media (max-width: 960px) {
  .nav { padding: 16px 20px; }
  .nav.scrolled { padding: 12px 20px; }
  /* 히어로: 모바일 주소창 포함 100vh 문제 → svh + 화면 72%로 축소 (스와이프 시 다음 콘텐츠 노출) */
  .hero { height: 72svh; min-height: 480px; }
  /* 모바일 nav 겹침 방지: 로고 텍스트 축소 + PARTNERS 숨김, Curation 버튼 축소 */
  .nav-logo { font-size: 15px; gap: 8px; white-space: nowrap; }
  .nav-logo small { display: none; }
  .nav-cta { padding: 8px 14px; font-size: 12px; }
  .nav-links { display: none; }
  .section { padding: 80px 20px; }
  .grid-2, .grid-3, .grid-4, .stats, .steps, .people-grid { grid-template-columns: 1fr; }
  .people-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .page-hero { padding: 140px 20px 56px; }
  .cta { padding: 100px 20px; }
  .footer { padding: 48px 20px 32px; }
}
@media (max-width: 560px) {
  .people-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 2.2rem; }
}

/* ---------- 모바일 메뉴 (단순) ---------- */
.mobile-menu-toggle { display: none; background: none; border: 0; color: inherit; font-size: 22px; cursor: pointer; line-height: 1; padding: 6px; }
@media (max-width: 960px) {
  .mobile-menu-toggle { display: block; }
  .nav-links.open {
    display: flex; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; background: var(--cream);
    padding: 24px 20px; gap: 4px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 40px rgba(20,20,20,0.12);
  }
  /* ★ 드롭다운 배경은 항상 밝음 → 링크는 어두운 글씨 (흰 글씨 + 크림 배경 버그 수정) */
  .nav-links.open a {
    color: var(--ink); opacity: 1;
    font-size: 16px; font-weight: 600;
    padding: 12px 6px; border-radius: 4px;
  }
  .nav-links.open a:hover { background: var(--cream-dark); }
  .nav-links.open a.active { color: var(--blue-deep); background: rgba(79,195,247,0.10); }
}

/* ---------- 접근성 ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .nav, .nav.scrolled { transition: none; }
  * { animation: none !important; }
}