/* ============================================================
   스테이션 & 공유오피스 — station-v1 / style.css
   소스 오브 트루스: STATION_DesignGuide.md
   운영사: 주식회사 피치스
   ============================================================ */

/* ----------------------------------------------------------
   1. CSS 변수 (Design Tokens)
   ---------------------------------------------------------- */
:root {
  /* 브랜드 컬러 */
  --color-black:      #1F4A3A;
  --color-dark:       #163529;
  --color-white:      #FFFFFF;
  --color-off-white:  #F3F8F5;
  --color-gray-mid:   #4A6358;
  --color-gray-light: #D4E6DC;
  --color-accent:     #3DAA72;
  --color-badge:      #E85C2A;
  --color-hero-em:    #FFD600;

  /* 히어로 배경 */
  --hero-gradient: linear-gradient(135deg,
    #163529 0%, #1F4A3A 35%, #2A6B50 70%, #3DAA72 100%);

  /* 타이포 */
  --font-base: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;

  /* 간격 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;

  /* 레이아웃 */
  --container-max:     1280px;
  --container-content: 1080px;
  --nav-height:        72px;

  /* 반경 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  /* 트랜지션 */
  --t-fast: 0.2s ease;
  --t-base: 0.3s ease;
  --t-slow: 0.5s ease;
}

/* ----------------------------------------------------------
   2. Reset & Base
   ---------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-black);
  background: var(--color-white);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-base); }

/* ----------------------------------------------------------
   3. 레이아웃 공통
   ---------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}
.container--narrow { max-width: var(--container-content); }

.section { padding: var(--space-xl) 0; }

.section__header {
  text-align: center;
  margin-bottom: var(--space-lg);
}
.section__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}
.section__title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}
.section__subtitle {
  font-size: 16px;
  color: var(--color-gray-mid);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ----------------------------------------------------------
   4. 버튼
   ---------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: all var(--t-base);
  -webkit-tap-highlight-color: transparent;
  cursor: pointer;
}
.btn--primary {
  background: var(--color-dark);
  color: var(--color-white);
  border: 2px solid var(--color-dark);
}
.btn--primary:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(61,170,114,0.3);
}
.btn--outline {
  background: transparent;
  color: var(--color-dark);
  border: 2px solid var(--color-dark);
}
.btn--outline:hover {
  background: var(--color-dark);
  color: var(--color-white);
  transform: translateY(-2px);
}
.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.6);
}
.btn--outline-white:hover {
  background: var(--color-white);
  color: var(--color-dark);
  border-color: var(--color-white);
}
.btn--large { padding: 18px 48px; font-size: 17px; }

/* ----------------------------------------------------------
   5. 내비게이션
   ---------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--t-base), box-shadow var(--t-base);
}
.nav--transparent { background: transparent; }
.nav.scrolled {
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--color-gray-light);
}

.nav__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.nav__logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-white);
  transition: color var(--t-base);
  flex-shrink: 0;
  white-space: nowrap;
}
.nav.scrolled .nav__logo { color: var(--color-black); }

.nav__menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__menu-item a {
  display: block;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  border-radius: var(--radius-sm);
  transition: all var(--t-fast);
  white-space: nowrap;
}
.nav.scrolled .nav__menu-item a { color: var(--color-black); }
.nav__menu-item a:hover {
  color: var(--color-accent);
  background: rgba(61,170,114,0.08);
}

.nav__utils {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.nav__utils a {
  display: block;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 400;
  color: rgba(255,255,255,0.7);
  transition: color var(--t-fast);
  white-space: nowrap;
}
.nav.scrolled .nav__utils a { color: var(--color-gray-mid); }
.nav__utils a:hover { color: var(--color-accent); }

.nav__divider {
  width: 1px; height: 14px;
  background: rgba(255,255,255,0.25);
  margin: 0 2px;
}
.nav.scrolled .nav__divider { background: var(--color-gray-light); }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
}
.nav__hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--t-base);
}
.nav.scrolled .nav__hamburger span { background: var(--color-black); }
.nav__hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.active span:nth-child(2) { opacity: 0; }
.nav__hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__drawer {
  display: none;
  position: fixed;
  top: var(--nav-height); left: 0; right: 0; bottom: 0;
  background: var(--color-white);
  z-index: 999;
  overflow-y: auto;
  padding: var(--space-md);
  flex-direction: column;
  gap: var(--space-xs);
}
.nav__drawer.open { display: flex; }
.nav__drawer a {
  display: block;
  padding: 14px 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--color-black);
  border-bottom: 1px solid var(--color-gray-light);
}

/* ----------------------------------------------------------
   6. 히어로
   ---------------------------------------------------------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--hero-gradient);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 60% 40%, rgba(61,170,114,0.12) 0%, transparent 70%),
    radial-gradient(ellipse 50% 80% at 20% 80%, rgba(22,53,41,0.45) 0%, transparent 60%);
  pointer-events: none;
}
.hero__bg-deco {
  position: absolute; inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.hero__bg-deco::before,
.hero__bg-deco::after {
  content: '';
  position: absolute;
  border: 1px solid rgba(61,170,114,0.1);
  border-radius: 50%;
}
.hero__bg-deco::before {
  width: 800px; height: 800px;
  top: 50%; right: -200px;
  transform: translateY(-50%);
}
.hero__bg-deco::after {
  width: 500px; height: 500px;
  top: 50%; right: 50px;
  transform: translateY(-50%);
}

.hero__content {
  position: relative; z-index: 1;
  text-align: center;
  padding: 0 var(--space-md);
  max-width: 860px;
}
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}
.hero__eyebrow::before,
.hero__eyebrow::after {
  content: '';
  display: block;
  width: 32px; height: 1px;
  background: var(--color-accent);
}

.hero__title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  word-break: keep-all;
}
.hero__title em {
  font-style: normal;
  color: var(--color-hero-em);
}

.hero__subtitle {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  word-break: keep-all;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.4);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: scrollBounce 2s infinite;
}
.hero__scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.4), transparent);
}
@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0);   opacity: 0.4; }
  50%       { transform: translateX(-50%) translateY(6px); opacity: 0.8; }
}

/* ----------------------------------------------------------
   7. 어바웃
   ---------------------------------------------------------- */
.about { background: var(--color-off-white); }

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}
.about__label {
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.about__title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700; line-height: 1.35;
  color: var(--color-black);
  margin-bottom: var(--space-md);
  word-break: keep-all;
}
.about__text {
  font-size: 16px;
  color: var(--color-gray-mid);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}
.about__stats {
  display: flex;
  gap: var(--space-md);
}
.about__stat { text-align: center; }
.about__stat-num {
  display: block;
  font-size: 32px; font-weight: 800;
  color: var(--color-black);
  line-height: 1;
  margin-bottom: 4px;
}
.about__stat-label {
  font-size: 13px;
  color: var(--color-gray-mid);
}

.about__visual {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 12px;
  height: 380px;
}
.about__visual-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-gray-light);
  position: relative;
}
.about__visual-item:first-child { grid-column: 1 / 3; }
.about__visual-item:nth-child(3) { grid-row: 1 / 3; }
.about__visual-placeholder {
  position: absolute; inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #D4E6DC, #b8d4c0);
  font-size: 32px;
  color: rgba(31,74,58,0.3);
}

/* ----------------------------------------------------------
   8. 서비스 그리드
   ---------------------------------------------------------- */
.services { background: var(--color-white); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.service-card {
  padding: var(--space-md);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-lg);
  transition: all var(--t-base);
  background: var(--color-white);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.08);
  border-color: var(--color-accent);
}
.service-card__icon {
  width: 56px; height: 56px;
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: var(--space-sm);
  transition: background var(--t-base);
}
.service-card:hover .service-card__icon {
  background: rgba(61,170,114,0.12);
}
.service-card__title {
  font-size: 17px; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
}
.service-card__desc {
  font-size: 14px;
  color: var(--color-gray-mid);
  line-height: 1.7;
}

/* ----------------------------------------------------------
   9. 캠퍼스
   ---------------------------------------------------------- */
.campus {
  background: #1A1A1A;
  padding: var(--space-xl) 0;
}
.campus .section__title  { color: var(--color-white); }
.campus .section__subtitle { color: rgba(255,255,255,0.5); }
.campus .section__label  { color: var(--color-accent); }

.campus-tabs {
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: var(--space-lg);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: 6px;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}
.campus-tab {
  padding: 10px 28px;
  font-size: 14px; font-weight: 600;
  color: rgba(255,255,255,0.5);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.campus-tab.active { background: var(--color-white); color: #1A1A1A; }
.campus-tab:hover:not(.active) {
  color: var(--color-white);
  background: rgba(255,255,255,0.08);
}

.campus-panel { display: none; grid-template-columns: 1fr 1fr; gap: var(--space-lg); align-items: start; }
.campus-panel.active { display: grid; }

.campus-panel__map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 400px;
  background: #1e1e1e;
  border: 1px solid rgba(255,255,255,0.08);
}
.campus-panel__map iframe {
  width: 100%; height: 100%; border: none;
  filter: invert(0.9) hue-rotate(180deg) brightness(0.85);
}

.campus-panel__info {
  color: var(--color-white);
  padding: var(--space-sm) 0;
}
.campus-panel__badge {
  display: inline-block;
  padding: 5px 14px;
  background: var(--color-badge);
  color: var(--color-white);
  font-size: 12px; font-weight: 700;
  border-radius: 100px;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-sm);
}
.campus-panel__name {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  margin-bottom: 6px;
}
.campus-panel__address {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  margin-bottom: var(--space-sm);
  line-height: 1.6;
}
.campus-panel__transport {
  display: flex; flex-wrap: wrap;
  gap: 8px;
  margin-bottom: var(--space-md);
}
.campus-panel__transit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.08);
  border-radius: 100px;
  font-size: 13px;
  color: rgba(255,255,255,0.8);
}
.campus-panel__transit::before { content: '🚇'; font-size: 14px; }
.campus-panel__actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; }

/* ----------------------------------------------------------
   10. 프로세스
   ---------------------------------------------------------- */
.process { background: var(--color-off-white); }

.process-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-bottom: var(--space-lg);
}
.process-step {
  flex: 1;
  text-align: center;
  position: relative;
  max-width: 300px;
}
.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(50% + 40px);
  right: calc(-50% + 40px);
  height: 1px;
  background: linear-gradient(to right, var(--color-accent), var(--color-gray-light));
}
.process-step__number {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-dark);
  color: var(--color-white);
  font-size: 22px; font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  position: relative; z-index: 1;
  transition: all var(--t-base);
}
.process-step:hover .process-step__number {
  background: var(--color-accent);
  transform: scale(1.1);
}
.process-step__icon { font-size: 24px; margin-bottom: 6px; }
.process-step__title {
  font-size: 18px; font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
}
.process-step__desc {
  font-size: 14px;
  color: var(--color-gray-mid);
  line-height: 1.7;
  padding: 0 var(--space-sm);
}
.process__cta { text-align: center; padding-top: var(--space-md); }

/* ----------------------------------------------------------
   11. 푸터
   ---------------------------------------------------------- */
.footer {
  background: #111111;
  color: rgba(255,255,255,0.65);
  padding: var(--space-lg) 0 var(--space-md);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-xl);
  align-items: start;
  margin-bottom: var(--space-md);
}
.footer__logo {
  font-size: 20px; font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}
.footer__info {
  font-size: 13px;
  line-height: 2;
  color: rgba(255,255,255,0.5);
}
.footer__info strong { color: rgba(255,255,255,0.8); }
.footer__notice {
  display: inline-block;
  margin-top: var(--space-sm);
  padding: 6px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  border-left: 2px solid var(--color-accent);
}
.footer__links {
  display: flex; flex-direction: column;
  gap: 8px; text-align: right;
}
.footer__links a {
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color var(--t-fast);
}
.footer__links a:hover { color: var(--color-accent); }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}
.footer__copy { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer__sns { display: flex; gap: var(--space-sm); }
.footer__sns a {
  display: flex; align-items: center; gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  transition: color var(--t-fast);
}
.footer__sns a:hover { color: var(--color-accent); }

/* ----------------------------------------------------------
   12. 반응형
   ---------------------------------------------------------- */
@media (max-width: 1024px) {
  .about__inner          { grid-template-columns: 1fr; }
  .about__visual         { height: 260px; }
  .services-grid         { grid-template-columns: repeat(2, 1fr); }
  .campus-panel          { grid-template-columns: 1fr; }
  .campus-panel__map     { height: 280px; }
}

@media (max-width: 768px) {
  :root {
    --space-lg: 48px;
    --space-xl: 64px;
  }
  .nav__menu, .nav__utils { display: none; }
  .nav__hamburger         { display: flex; }

  .services-grid          { grid-template-columns: 1fr; }

  .campus-tabs            { gap: 2px; padding: 4px; }
  .campus-tab             { padding: 8px 16px; font-size: 13px; }

  .process-steps          { flex-direction: column; align-items: center; gap: var(--space-md); }
  .process-step           { max-width: 100%; width: 100%; }
  .process-step:not(:last-child)::after { display: none; }

  .about__stats           { justify-content: center; }

  .footer__inner          { grid-template-columns: 1fr; gap: var(--space-md); }
  .footer__links          { text-align: left; flex-direction: row; flex-wrap: wrap; gap: var(--space-sm); }

  .hero__actions          { flex-direction: column; align-items: stretch; max-width: 280px; margin: 0 auto; }
  .hero__actions .btn     { justify-content: center; }
}

@media (max-width: 480px) {
  .campus-tabs            { flex-wrap: wrap; width: 100%; }
  .campus-tab             { flex: 1; text-align: center; }
  .campus-panel__actions  { flex-direction: column; }
  .campus-panel__actions .btn { justify-content: center; }
}