/* ============================================
   공감 솔루션 허브 (solutions.html)
   Premium Editorial · Final Polish
   ============================================ */

:root {
  --sol-primary: #0D4B3A;
  --sol-secondary: #6C7F74;
  --sol-warm-white: #FAFAF7;
  --sol-soft-white: #FCFCFB;
  --sol-card-bg: #FFFFFF;
  --sol-border: #E7ECE9;
  --sol-divider: #ECEFEC;
  --sol-accent-gold: #B8945A;
  --sol-title: #243746;
  --sol-body: #69757D;
  --sol-empathy: #8B9499;
  --sol-icon-bg: rgba(13, 75, 58, .06);
  --sol-icon-bg-hover: rgba(13, 75, 58, .12);
  --sol-card-surface: linear-gradient(180deg, #FFFFFF 0%, #FCFCFB 100%);
  --sol-card-border: rgba(13, 75, 58, .05);
  --sol-card-border-hover: rgba(13, 75, 58, .12);
  --sol-divider-soft: rgba(13, 75, 58, .08);
  --sol-shadow: 0 10px 28px rgba(0, 0, 0, .04);
  --sol-shadow-hover: 0 20px 45px rgba(13, 75, 58, .08);
  --sol-radius: 20px;
  --sol-footer: #144D3F;
  --sol-ease: 0.35s ease;
  --sol-card-min-h: clamp(17rem, 32vw, 19.5rem);
  --sol-arrow-icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230D4B3A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 17 17 7'/%3E%3Cpath d='M7 7h10v10'/%3E%3C/svg%3E");
  --sol-icon-check: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230D4B3A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");
  --sol-icon-sparkle: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230D4B3A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v3M12 18v3M3 12h3M18 12h3M5.6 5.6l2.1 2.1M16.3 16.3l2.1 2.1M5.6 18.4l2.1-2.1M16.3 7.7l2.1-2.1'/%3E%3C/svg%3E");
}

/* ── Page Progress Bar ── */
.solutions-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 9999;
  pointer-events: none;
}

.solutions-progress__fill {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--sol-primary);
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

.solutions-page {
  background: var(--sol-warm-white);
  color: var(--sol-body);
  font-weight: 500;
  line-height: 1.7;
}

/* ── Header ── */
.solutions-page .site-header--light.site-header--home,
.solutions-page .site-header--light.site-header--enerblock {
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--sol-divider);
}

.solutions-page .site-header--light .site-header__logo,
.solutions-page .site-header--light .brand-title {
  color: var(--sol-title);
}

.solutions-page .site-header--light .primary-menu__link,
.solutions-page .site-header--light .primary-menu__trigger {
  color: var(--sol-title);
}

.solutions-page .site-header--light .primary-menu__link:hover,
.solutions-page .site-header--light .primary-menu__trigger:hover {
  color: var(--sol-primary);
}

@media (min-width: 1024px) {
  .solutions-page .site-header--light .primary-menu__item--dropdown:hover > .primary-menu__trigger,
  .solutions-page .site-header--light .primary-menu__item--dropdown.is-submenu-open > .primary-menu__trigger {
    color: var(--sol-primary);
  }
}

.solutions-page .site-header--light .primary-menu__sublink {
  color: var(--sol-body);
}

.solutions-page .site-header--light .primary-menu__sublink:hover {
  color: var(--sol-primary);
  background: var(--sol-icon-bg);
}

.solutions-page .site-header--light .dropdown-panel,
.solutions-page .site-header--light .primary-menu__submenu {
  background: var(--sol-card-bg);
  border: 1px solid var(--sol-border);
  box-shadow: var(--sol-shadow);
}

@media (max-width: 1023px) {
  .solutions-page .site-header--light .site-header__nav-mobile .dropdown-panel,
  .solutions-page .site-header--light .site-header__nav-mobile .primary-menu__submenu {
    background: transparent;
    border: none;
    border-left: 2px solid var(--sol-divider);
    box-shadow: none;
    width: 100%;
    max-width: 100%;
  }

  .solutions-page .site-header--light .site-header__nav-mobile .primary-menu__sublink {
    font-size: 0.875rem;
    padding: 0.625rem 0.875rem;
    white-space: normal;
  }
}

.solutions-page .site-header--light .btn--primary,
.solutions-page .site-header--light .primary-menu__link--cta {
  background: var(--sol-primary);
  border-color: var(--sol-primary);
  color: #FFFFFF;
}

.solutions-page .site-header--light .btn--primary:hover,
.solutions-page .site-header--light .primary-menu__link--cta:hover {
  background: var(--sol-accent-gold);
}

.solutions-page .site-header--light .site-header__nav-mobile {
  background: var(--sol-card-bg);
  border-top-color: var(--sol-divider);
}

.solutions-page .site-header--light .site-header__toggle {
  color: var(--sol-title);
}

/* Header Active — 공감 솔루션 */
.solutions-page .primary-menu__link[href="solutions.html"] {
  position: relative;
  color: var(--sol-primary);
  font-weight: 600;
}

.solutions-page .primary-menu__link[href="solutions.html"]::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.3rem;
  height: 2px;
  border-radius: 999px;
  background: var(--sol-accent-gold);
  transform: scaleX(0);
  transform-origin: left center;
  animation: sol-nav-underline 0.35s ease forwards;
}

@keyframes sol-nav-underline {
  to { transform: scaleX(1); }
}

/* ── Hero ── */
.solutions-hero {
  padding: clamp(4rem, 9vw, 6.5rem) 0 clamp(3.5rem, 7vw, 5rem);
  background:
    radial-gradient(circle at top, rgba(13, 75, 58, .04), transparent 65%),
    var(--sol-card-bg);
  border-bottom: 1px solid var(--sol-divider);
}

.solutions-hero__inner {
  max-width: 1080px;
  text-align: center;
  margin: 0 auto;
}

.solutions-hero__eyebrow {
  margin: 0 0 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sol-accent-gold);
}

.solutions-hero__title {
  max-width: 720px;
  margin: 0 auto 1.25rem;
  font-size: clamp(1.875rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.03em;
  color: var(--sol-title);
}

.solutions-hero__desc {
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  font-weight: 500;
  line-height: 1.8;
  color: var(--sol-body);
  word-break: keep-all;
  overflow-wrap: normal;
}

@media (min-width: 1024px) {
  .solutions-page:not(.core-treatments-page) .solutions-hero__desc {
    max-width: none;
    white-space: nowrap;
  }
}

@media (max-width: 1023px) {
  .solutions-hero__desc {
    max-width: 720px;
    white-space: normal;
  }
}

@media (max-width: 768px) {
  .solutions-hero__desc {
    max-width: 100%;
    font-size: 1rem;
    line-height: 1.75;
    white-space: normal;
  }
}

/* ── Hub ── */
.solutions-hub {
  position: relative;
  padding: clamp(4rem, 8vw, 6rem) 0 clamp(5rem, 9vw, 7rem);
  background: var(--sol-warm-white);
}

.solutions-hub::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--sol-divider-soft);
}

.solutions-hub__intro {
  text-align: center;
  max-width: 560px;
  margin: 0 auto clamp(3rem, 6vw, 4rem);
}

.solutions-hub__intro-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.375rem, 3vw, 1.625rem);
  font-weight: 700;
  color: var(--sol-title);
  letter-spacing: -0.02em;
}

.solutions-hub__intro-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  margin: 20px auto 0;
  border-radius: 999px;
  background: var(--sol-accent-gold);
}

.solutions-hub__intro-desc {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  color: var(--sol-body);
}

.solutions-hub__grid {
  display: grid;
  gap: calc(1rem + 8px) calc(1rem + 4px);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .solutions-hub__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .solutions-hub__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: calc(1.5rem + 8px) calc(1.5rem + 4px);
  }
}

/* ── Scroll Reveal ── */
.solutions-page--enhanced .solutions-hub__card-wrap {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.solutions-page--enhanced .solutions-hub__card-wrap.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .solutions-page--enhanced .solutions-hub__card-wrap {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ── Cards ── */
.solutions-hub__card-wrap {
  display: flex;
  margin: 0;
  height: 100%;
}

.solutions-hub__card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  min-height: var(--sol-card-min-h);
  padding: clamp(1.5rem, 3vw, 2rem);
  background: var(--sol-card-surface);
  border: 1px solid var(--sol-card-border);
  border-radius: var(--sol-radius);
  box-shadow: var(--sol-shadow);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition:
    transform var(--sol-ease),
    box-shadow var(--sol-ease),
    border-color var(--sol-ease);
  will-change: transform;
}

/* Hover Arrow — top right */
.solutions-hub__card::before {
  content: '';
  position: absolute;
  top: clamp(1.25rem, 3vw, 1.75rem);
  right: clamp(1.25rem, 3vw, 1.75rem);
  width: 18px;
  height: 18px;
  background: var(--sol-arrow-icon) center / contain no-repeat;
  opacity: 0;
  transform: translateY(3px);
  pointer-events: none;
  transition: opacity var(--sol-ease), transform var(--sol-ease);
}

.solutions-hub__card:hover,
.solutions-hub__card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--sol-card-border-hover);
  box-shadow: var(--sol-shadow-hover);
  outline: none;
}

.solutions-hub__card:focus-visible {
  outline: 2px solid var(--sol-accent-gold);
  outline-offset: 3px;
}

.solutions-hub__card:hover::before,
.solutions-hub__card:focus-visible::before {
  opacity: 1;
  transform: translateY(-3px);
}

/* Accent Line → Icon */
.solutions-hub__icon {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin-top: 0.75rem;
  margin-bottom: 1.125rem;
  border-radius: 12px;
  background: var(--sol-icon-bg);
  color: var(--sol-primary);
  flex-shrink: 0;
  transition: background-color var(--sol-ease);
}

.solutions-hub__icon::before {
  content: '';
  position: absolute;
  top: -0.75rem;
  left: 0;
  width: 32px;
  height: 3px;
  border-radius: 999px;
  background: var(--sol-primary);
  transition: width var(--sol-ease);
}

.solutions-hub__card:hover .solutions-hub__icon,
.solutions-hub__card:focus-visible .solutions-hub__icon {
  background: var(--sol-icon-bg-hover);
}

.solutions-hub__card:hover .solutions-hub__icon::before,
.solutions-hub__card:focus-visible .solutions-hub__icon::before {
  width: 48px;
}

.solutions-hub__icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

/* Title */
.solutions-hub__question {
  margin: 0 0 0.875rem;
  flex: 1 1 auto;
  font-size: clamp(1rem, 2vw, 1.0625rem);
  font-weight: 600;
  line-height: 1.7;
  letter-spacing: -0.02em;
  color: var(--sol-title);
  word-break: keep-all;
}

/* Empathy */
.solutions-hub__empathy {
  margin: 0 0 0.75rem;
  padding-right: 1.5rem;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--sol-empathy);
  word-break: keep-all;
  overflow-wrap: anywhere;
  transition: color var(--sol-ease);
}

.solutions-hub__empathy::before {
  content: '';
  display: inline-block;
  width: 11px;
  height: 11px;
  margin-right: 0.4rem;
  vertical-align: -0.05em;
  background: var(--sol-icon-check) center / contain no-repeat;
  opacity: 0.45;
  transition: opacity var(--sol-ease);
}

.solutions-hub__card-wrap:nth-child(even) .solutions-hub__empathy::before {
  background-image: var(--sol-icon-sparkle);
}

.solutions-hub__card:hover .solutions-hub__empathy,
.solutions-hub__card:focus-visible .solutions-hub__empathy {
  color: #6E787D;
}

.solutions-hub__card:hover .solutions-hub__empathy::before,
.solutions-hub__card:focus-visible .solutions-hub__empathy::before {
  opacity: 0.7;
}

/* CTA + Divider */
.solutions-hub__cta {
  display: inline-flex;
  align-items: center;
  width: 100%;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--sol-divider-soft);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sol-accent-gold);
  transition: color var(--sol-ease);
}

.solutions-hub__cta::after {
  content: ' →';
  display: inline-block;
  transition: transform var(--sol-ease);
}

.solutions-hub__card:hover .solutions-hub__cta,
.solutions-hub__card:focus-visible .solutions-hub__cta {
  color: var(--sol-primary);
}

.solutions-hub__card:hover .solutions-hub__cta::after,
.solutions-hub__card:focus-visible .solutions-hub__cta::after {
  transform: translateX(4px);
}

/* ── Footer ── */
.solutions-page .site-footer {
  background: var(--sol-footer);
  color: rgba(255, 255, 255, 0.72);
}

.solutions-page .site-footer__logo,
.solutions-page .site-footer__col h3 {
  color: #FFFFFF;
}

.solutions-page .site-footer__col a:hover {
  color: var(--sol-accent-gold);
}

.solutions-page .site-footer__top {
  border-bottom-color: rgba(236, 239, 236, 0.16);
}

.solutions-page .skip-link {
  background: var(--sol-primary);
  color: #FFFFFF;
}

/* ── Responsive ── */
@media (max-width: 639px) {
  .solutions-hub__card {
    min-height: auto;
  }

  .solutions-hub__empathy {
    padding-right: 0.5rem;
  }

  .solutions-hub__card::before {
    top: 1.25rem;
    right: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .solutions-hub__card,
  .solutions-hub__card::before,
  .solutions-hub__icon,
  .solutions-hub__icon::before,
  .solutions-hub__empathy,
  .solutions-hub__empathy::before,
  .solutions-hub__cta,
  .solutions-hub__cta::after {
    transition: none;
  }

  .solutions-page .primary-menu__link[href="solutions.html"]::after {
    animation: none;
    transform: scaleX(1);
  }
}