/* =============================================
   Hicare NEW — Home Page Styles
   Adapted from ov3 alternating image/text layout
   ============================================= */

/* Global Reset */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: hidden; }

/* Anti-flicker: hide page until i18n applied (Issue #8) */
html.i18n-pending body { visibility: hidden; }

body {
  font-family: 'Pretendard Variable', Pretendard, Inter, 'Apple SD Gothic Neo', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  color: #1a1a2e; background: #fff; line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.lang-ko {
  font-family: 'Pretendard Variable', Pretendard, 'Apple SD Gothic Neo', 'Noto Sans KR', Inter, -apple-system, BlinkMacSystemFont, sans-serif;
  word-break: keep-all;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ============================
   LANGUAGE TOGGLE VISIBILITY
   - Each element keeps its native display (grid / flex / block).
   - We only force-hide the inactive language. !important is required
     because component rules like `.service-flow { display: flex }`
     share specificity with `.lang-ko-only { display: none }` and win
     by source order.
   ============================ */
body:not(.lang-ko) .lang-ko-only { display: none !important; }
body.lang-ko .lang-en-only { display: none !important; }
/* .footer-en / .footer-ko toggle now lives in common.css (HNWEB-14) */

/* ============================
   NAVIGATION — dark/light mode
   ============================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 0 48px; height: 72px;
  display: flex; align-items: center;
  transition: background 0.4s, box-shadow 0.4s;
}
.nav.is-scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.06);
}
/* Dark mode nav (over images) */
.nav--dark .nav__link,
.nav--dark .lang-toggle__btn { color: rgba(255,255,255,0.7); }
.nav--dark .nav__link:hover,
.nav--dark .lang-toggle__btn:hover { color: #fff; }
.nav--dark .lang-toggle__btn.is-active { color: #fff; background: rgba(255,255,255,0.2); }
.nav--dark .lang-toggle { background: rgba(255,255,255,0.12); }
.nav--dark .nav__logo img { filter: brightness(0) invert(1); }
.nav--dark .nav__hamburger span { background: #fff; }
.nav--dark .nav__cta { background: rgba(255,255,255,0.15); color: #fff; border-color: rgba(255,255,255,0.3); }
.nav--dark .nav__cta:hover { background: rgba(255,255,255,0.25); }

/* Light mode nav (over white sections) */
.nav--light .nav__link { color: rgba(0,0,0,0.5); }
.nav--light .nav__link:hover { color: #1a1a2e; }
.nav--light .lang-toggle__btn { color: rgba(0,0,0,0.4); }
.nav--light .lang-toggle__btn:hover { color: #1a1a2e; }
.nav--light .lang-toggle__btn.is-active { color: #1a1a2e; background: rgba(0,0,0,0.08); }
.nav--light .lang-toggle { background: rgba(0,0,0,0.06); }
.nav--light .nav__logo img { filter: none; }
.nav--light .nav__hamburger span { background: #1a1a2e; }
.nav--light .nav__cta { background: #1A8FD8; color: #fff; border-color: #1A8FD8; }

/* Scrolled always uses light */
.nav.is-scrolled .nav__link { color: rgba(0,0,0,0.5); }
.nav.is-scrolled .nav__link:hover { color: #1a1a2e; }
.nav.is-scrolled .lang-toggle__btn { color: rgba(0,0,0,0.4); }
.nav.is-scrolled .lang-toggle__btn.is-active { color: #1a1a2e; background: rgba(0,0,0,0.08); }
.nav.is-scrolled .lang-toggle { background: rgba(0,0,0,0.06); }
.nav.is-scrolled .nav__logo img { filter: none; }
.nav.is-scrolled .nav__hamburger span { background: #1a1a2e; }
.nav.is-scrolled .nav__cta { background: #1A8FD8; color: #fff; border-color: #1A8FD8; }

.nav__inner {
  width: 100%; max-width: 1440px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo img { height: 28px; transition: filter 0.4s; }
.nav__menu { display: flex; gap: 32px; }
.nav__link {
  font-size: 16px; font-weight: 500; letter-spacing: 0.02em;
  transition: color 0.3s; padding: 4px 0; position: relative;
}
.nav__link::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 2px; background: #1A8FD8; transition: width 0.3s;
}
.nav__link:hover::after { width: 100%; }
.nav__actions { display: flex; align-items: center; gap: 16px; }

.nav__cta {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 600; padding: 8px 18px;
  border-radius: 8px; border: 1px solid transparent;
  transition: all 0.3s; cursor: pointer; text-decoration: none;
}

.lang-toggle { display: flex; gap: 2px; border-radius: 6px; padding: 2px; transition: background 0.4s; }
.lang-toggle__btn {
  display: inline-flex; align-items: center; justify-content: center;
  background: none; border: none; font-size: 12px; font-weight: 600;
  letter-spacing: 0.05em; padding: 6px 12px; border-radius: 4px;
  cursor: pointer; transition: all 0.25s;
}
.lang-toggle__btn.is-active { pointer-events: none; }

.nav__hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav__hamburger span { display: block; width: 22px; height: 2px; border-radius: 1px; transition: all 0.3s; }
.nav__hamburger.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__hamburger.is-open span:nth-child(2) { opacity: 0; }
.nav__hamburger.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav__mobile {
  display: none; position: absolute; top: 100%; left: 0; right: 0;
  background: rgba(255,255,255,0.98); backdrop-filter: blur(12px);
  padding: 16px 24px 24px; flex-direction: column; gap: 4px;
}
.nav__mobile.is-open { display: flex; }
.nav__mobile-link {
  color: rgba(0,0,0,0.7); font-size: 15px; font-weight: 500;
  padding: 12px 0; border-bottom: 1px solid rgba(0,0,0,0.06); transition: color 0.3s;
}
.nav__mobile-link:hover { color: #1A8FD8; }

/* ============================
   SCROLL INDICATOR
   ============================ */
.scroll-indicator {
  position: fixed; bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 90; display: flex; flex-direction: column; align-items: center; gap: 8px;
  opacity: 1; transition: opacity 0.5s; pointer-events: none;
}
.scroll-indicator.is-hidden { opacity: 0; }
.scroll-indicator__mouse { width: 24px; height: 38px; border: 2px solid rgba(255,255,255,0.5); border-radius: 12px; position: relative; }
.scroll-indicator__wheel {
  width: 4px; height: 8px; background: rgba(255,255,255,0.8); border-radius: 2px;
  position: absolute; top: 6px; left: 50%; transform: translateX(-50%);
  animation: scrollWheel 2s ease-in-out infinite;
}
@keyframes scrollWheel {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}
.scroll-indicator__text { font-size: 10px; font-weight: 600; letter-spacing: 0.2em; color: rgba(255,255,255,0.5); }

/* ============================
   IMAGE SECTIONS (dark bg, white text)
   ============================ */
.section-image {
  position: relative; width: 100%; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.section-image__bg {
  position: absolute; inset: 0; z-index: 0;
}
.section-image__bg img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.03); transition: transform 6s ease-out;
}
.section-image.is-visible .section-image__bg img { transform: scale(1); }

.section-image__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.7) 100%);
}
.section-image__overlay--brand {
  background: linear-gradient(135deg, rgba(26,143,216,0.85) 0%, rgba(15,70,130,0.9) 100%);
}

.section-image__content {
  position: relative; z-index: 2;
  text-align: center; padding: 0 5%;
  max-width: 1200px;
}
.section-image__eyebrow {
  display: inline-block; font-size: 16px; font-weight: 800;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: rgba(255,255,255,0.7); margin-bottom: 16px;
}
.section-image__headline {
  font-size: clamp(2.8rem, 5.5vw, 4.5rem); font-weight: 800;
  line-height: 1.12; color: #fff; margin-bottom: 20px; letter-spacing: -0.02em;
}
.section-image__headline--lg { font-size: clamp(3rem, 6.5vw, 5.5rem); }
.section-image__desc {
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  color: rgba(255,255,255,0.8); line-height: 1.7; max-width: 640px; margin: 0 auto;
}
/* Wider variant for descriptions that need 2 lines with longer sentences */
.section-image__desc--wide { max-width: 760px; }

/* ============================
   TEXT SECTIONS (white/light bg, dark text)
   ============================ */
.section-text {
  background: #fff; padding: 100px 8%;
}
.section-text--gray { background: #f7f8fa; }

.section-text__inner {
  max-width: 1100px; margin: 0 auto; text-align: center;
}
.section-text__eyebrow {
  display: inline-block; font-size: 16px; font-weight: 800;
  letter-spacing: 0.15em; text-transform: uppercase;
  color: #1A8FD8; margin-bottom: 16px;
}
.section-text__headline {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
  line-height: 1.2; color: #1a1a2e; margin-bottom: 16px; letter-spacing: -0.02em;
}
.section-text__desc {
  font-size: 1rem; color: #555; line-height: 1.8;
  max-width: 640px; margin: 0 auto 48px;
}

/* ============================
   SOLUTIONS — 4-Split (EN)
   ============================ */
.solutions-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; width: 100%; max-width: 1100px; margin: 0 auto;
}
.solution-card {
  position: relative; border-radius: 16px; overflow: hidden;
  min-height: 340px; cursor: pointer; transition: transform 0.4s;
}
.solution-card:hover { transform: translateY(-6px); }
.solution-card__bg {
  position: absolute; inset: 0; background-size: cover; background-position: center;
  transition: transform 0.6s;
}
.solution-card:hover .solution-card__bg { transform: scale(1.08); }
.solution-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.1) 60%);
}
.solution-card__content {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 28px 24px; z-index: 2;
}
.solution-card__number { font-size: 11px; font-weight: 700; letter-spacing: 0.15em; color: #fff; margin-bottom: 8px; display: block; }
.solution-card__title { font-size: 1.2rem; font-weight: 800; color: #fff; line-height: 1.2; margin-bottom: 8px; }
.solution-card__desc {
  font-size: 0.83rem; color: rgba(255,255,255,0.65); line-height: 1.5;
  max-height: 0; overflow: hidden; opacity: 0;
  transition: max-height 0.5s, opacity 0.4s;
}
.solution-card:hover .solution-card__desc { max-height: 120px; opacity: 1; }
.solution-card__link { font-size: 0.82rem; font-weight: 600; color: #fff; margin-top: 10px; opacity: 0; transition: opacity 0.4s; display: inline-block; }
.solution-card:hover .solution-card__link { opacity: 1; }

/* ============================
   SOLUTIONS — Service Flow (KO)
   ============================ */
.service-flow {
  display: flex; align-items: center; justify-content: center;
  gap: 0; width: 100%; max-width: 900px; margin: 0 auto 36px;
}
.service-flow__step {
  flex: 1; text-align: center; padding: 32px 16px;
  background: #fff; border: 1px solid #e8eaed; border-radius: 16px;
  transition: all 0.4s;
}
.service-flow__step:hover { border-color: #1A8FD8; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(26,143,216,0.1); }
.service-flow__icon { color: #1A8FD8; margin-bottom: 12px; }
.service-flow__title { font-size: 1.2rem; font-weight: 800; color: #1a1a2e; margin-bottom: 6px; }
.service-flow__desc { font-size: 1rem; color: #888; line-height: 1.5; }
.service-flow__arrow { flex: 0 0 40px; display: flex; align-items: center; justify-content: center; color: #ccc; }

.service-tags {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
  width: 100%; max-width: 900px; margin: 56px auto 0;
}
.service-tag {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; border-radius: 40px;
  background: #f7f8fa; border: 1px solid #e8eaed; transition: all 0.3s;
}
.service-tag:hover { border-color: rgba(26,143,216,0.3); background: #f0f7fd; }
.service-tag--highlight { border-color: #1A8FD8; background: #f0f7fd; }
.service-tag__label { font-size: 0.85rem; font-weight: 800; color: #1A8FD8; letter-spacing: 0.05em; white-space: nowrap; }
.service-tag__codes { font-size: 0.85rem; color: #888; white-space: nowrap; }

/* ============================
   TECH GRID (EN About)
   ============================ */
.tech-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; width: 100%; max-width: 1000px; margin: 0 auto;
}
.tech-card {
  background: #f7f8fa; border: 1px solid #e8eaed;
  border-radius: 16px; padding: 32px 24px; text-align: center;
  transition: all 0.4s;
}
.tech-card:hover { border-color: #1A8FD8; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(26,143,216,0.08); }
.tech-card__icon { color: #1A8FD8; margin-bottom: 16px; }
.tech-card__title { font-size: 1rem; font-weight: 700; color: #1a1a2e; margin-bottom: 8px; }
.tech-card__desc { font-size: 0.85rem; color: #777; line-height: 1.5; }

/* ============================
   TIMELINE (KO About)
   ============================ */
.timeline {
  position: relative; display: flex; gap: 0;
  width: 100%; max-width: 1100px; margin: 0 auto; justify-content: center;
  /* CSS var controls the fixed vertical position of the dot row inside each item.
     This anchors the connecting line ::before to a consistent Y across all items,
     regardless of year/text length differences. */
  --timeline-year-row: 40px;
}
.timeline::before {
  content: ''; position: absolute;
  top: calc(var(--timeline-year-row) + 32px); /* year row + top padding before dot */
  left: 5%; right: 5%; height: 2px; background: #e0e2e6;
}
.timeline__item {
  flex: 1; position: relative; text-align: center; padding: 0 12px;
  display: grid;
  grid-template-rows: var(--timeline-year-row) auto auto;
  justify-items: center;
}
.timeline__year {
  grid-row: 1; align-self: start;
  font-size: 1rem; font-weight: 800; color: #1A8FD8; margin-bottom: 0;
}
.timeline__dot {
  grid-row: 2;
  width: 14px; height: 14px; border-radius: 50%;
  background: #1A8FD8; border: 3px solid #fff; box-shadow: 0 0 0 2px #1A8FD8;
  position: relative; z-index: 2;
  margin: 24px 0; /* breathing room above/below dot */
  transition: transform 0.3s;
}
.timeline__item:hover .timeline__dot { transform: scale(1.4); }
.timeline__text {
  grid-row: 3;
  font-size: 1rem; color: #888; line-height: 1.5; margin-top: 0;
  word-break: keep-all;
}

/* ============================
   STATS (on brand image)
   ============================ */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 32px; margin: 48px auto 0; width: 100%; max-width: 1100px;
  font-variant-numeric: tabular-nums;
}
.stat-item { text-align: center; white-space: nowrap; }
.stat-item__number { font-size: clamp(3rem, 5vw, 4.5rem); font-weight: 800; color: #fff; line-height: 1; display: inline; }
.stat-item__suffix { font-size: clamp(2rem, 3vw, 3rem); font-weight: 700; color: rgba(255,255,255,0.8); }
.stat-item__label { display: block; margin-top: 8px; font-size: 0.9rem; color: rgba(255,255,255,0.75); font-weight: 500; white-space: normal; }

/* ============================
   COMPLIANCE CARDS
   ============================ */
.compliance-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 28px; width: 100%; max-width: 900px; margin: 0 auto;
}
.compliance-card {
  background: #f7f8fa; border: 1px solid #e8eaed;
  border-radius: 16px; padding: 40px 28px; text-align: center; transition: all 0.4s;
}
.compliance-card:hover { border-color: #1A8FD8; transform: translateY(-4px); box-shadow: 0 8px 24px rgba(26,143,216,0.08); }
.compliance-card__icon { color: #1A8FD8; margin-bottom: 20px; }
.compliance-card__title { font-size: 1.3rem; font-weight: 800; color: #1a1a2e; margin-bottom: 12px; letter-spacing: 0.05em; }
.compliance-card__desc { font-size: 0.88rem; color: #777; line-height: 1.6; }

/* ============================
   RESOURCE CARDS
   ============================ */
.resource-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 24px; width: 100%; max-width: 900px; margin: 0 auto;
}
.resource-card {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
  border-radius: 16px; padding: 36px 28px; text-align: center;
  transition: all 0.4s; backdrop-filter: blur(8px);
  display: flex; flex-direction: column; align-items: center;
}
.resource-card:hover { background: rgba(255,255,255,0.15); border-color: rgba(26,143,216,0.4); transform: translateY(-4px); }
.resource-card__icon { color: #1A8FD8; margin-bottom: 16px; }
.resource-card__title { font-size: 1.05rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.resource-card__desc { font-size: 0.85rem; color: rgba(255,255,255,0.6); line-height: 1.5; }

/* ============================
   BUTTONS
   ============================ */
.cta-group { display: flex; gap: 16px; justify-content: center; margin-top: 40px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 0.95rem; font-weight: 600; padding: 14px 32px;
  border-radius: 8px; cursor: pointer; transition: all 0.3s;
  border: 2px solid transparent;
}
.btn--primary { background: #1A8FD8; color: #fff; border-color: #1A8FD8; }
.btn--primary:hover { background: #1577B8; border-color: #1577B8; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26,143,216,0.3); }
.btn--outline-white { background: rgba(0,0,0,0.15); color: #fff; border-color: rgba(255,255,255,0.85); }
.btn--outline-white:hover { border-color: #fff; background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn--lg { padding: 16px 40px; font-size: 1rem; }

/* Footer styles moved to css/common.css (HNWEB-14: unified across home + sub-pages) */

/* ============================
   ANIMATIONS
   ============================ */
[data-animate] { opacity: 0; transition: opacity 0.8s ease, transform 0.8s ease; will-change: opacity, transform; }
[data-animate="fade-up"] { transform: translateY(40px); }
[data-animate].is-animated { opacity: 1; transform: translate(0, 0); }
[data-animate-delay="150"] { transition-delay: 0.15s; }
[data-animate-delay="200"] { transition-delay: 0.2s; }
[data-animate-delay="300"] { transition-delay: 0.3s; }
[data-animate-delay="400"] { transition-delay: 0.4s; }
[data-animate-delay="500"] { transition-delay: 0.5s; }

@media (prefers-reduced-motion: reduce) {
  [data-animate] { opacity: 1; transform: none; transition: none; }
  .section-image__bg img { transform: scale(1); transition: none; }
  .scroll-indicator__wheel { animation: none; }
}

/* ============================
   RESPONSIVE: TABLET
   ============================ */
@media (max-width: 1024px) {
  .nav { padding: 0 24px; }
  .nav__menu { display: none; }
  .nav__hamburger { display: flex; }
  .nav__cta { display: none; }

  .section-text { padding: 72px 6%; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-card { min-height: 260px; }
  .solution-card__desc { max-height: none; opacity: 1; }
  .solution-card__link { opacity: 1; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; max-width: 500px; margin-left: auto; margin-right: auto; }

  .service-flow { flex-wrap: wrap; gap: 12px; }
  .service-flow__step { flex: 0 0 calc(50% - 30px); }
  .service-flow__arrow:nth-of-type(2) { display: none; }

  .timeline { flex-wrap: wrap; gap: 16px; }
  .timeline::before { display: none; }
  .timeline__item {
    flex: 0 0 calc(33% - 16px); padding: 16px;
    display: block; /* drop the grid rows on tablet */
  }
  .timeline__dot { display: none; }
  .timeline__year { margin-bottom: 8px; }
  .timeline__text { margin-top: 0; }

}

/* ============================
   RESPONSIVE: MOBILE
   ============================ */
@media (max-width: 768px) {
  .nav { padding: 0 16px; height: 60px; }
  .section-image__headline { font-size: clamp(2rem, 7vw, 2.8rem); }
  .section-image__headline--lg { font-size: clamp(2.2rem, 8vw, 3rem); }
  .section-image { min-height: 70vh; }
  .section-text { padding: 56px 6%; }
  .section-text__headline { font-size: clamp(1.6rem, 5vw, 2.2rem); }

  .solutions-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .solution-card { min-height: 200px; }
  .tech-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .tech-card { padding: 20px 16px; }
  .tech-card__title { font-size: 0.85rem; }
  .tech-card__desc { font-size: 0.75rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .stat-item__number { font-size: 2.5rem; }
  .compliance-grid { grid-template-columns: 1fr; gap: 12px; max-width: 360px; }
  .resource-grid { grid-template-columns: 1fr; gap: 12px; max-width: 360px; margin-left: auto; margin-right: auto; }

  .service-flow__step { flex: 0 0 calc(50% - 20px); padding: 20px 12px; }
  .service-flow__arrow { display: none; }
  .service-tags { flex-direction: column; align-items: center; }
  .service-tag { width: 100%; max-width: 320px; justify-content: center; }
  .timeline__item { flex: 0 0 calc(50% - 16px); }

  .cta-group { flex-direction: column; align-items: center; }
  .cta-group .btn { width: 100%; max-width: 300px; }
  .scroll-indicator { bottom: 24px; }
}

@media (max-width: 480px) {
  .section-image__headline { font-size: 1.8rem; }
  .section-image__headline--lg { font-size: 2rem; }
  .solutions-grid { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .timeline__item { flex: 0 0 100%; }
}