/* ============================================================
   Common Styles — Header / Footer / Utilities
   ============================================================ */

/* ── Layout Utilities ── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
}

.section {
  padding: var(--sp-20) 0;
}

.section--bg {
  background-color: var(--c-bg);
}

.section__head {
  text-align: center;
  margin-bottom: var(--sp-16);
}

.section__label {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--sp-2);
}

.section__title {
  font-size: var(--fs-2xl);
  color: var(--c-primary);
  margin-bottom: var(--sp-4);
}

.section__desc {
  font-size: var(--fs-lg);
  color: var(--c-muted);
  max-width: 640px;
  margin: 0 auto;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 14px 28px;
  border-radius: var(--r-full);
  font-size: var(--fs-md);
  font-weight: 700;
  transition: background var(--tr), color var(--tr), border-color var(--tr),
              box-shadow var(--tr), transform var(--tr);
  white-space: nowrap;
  cursor: pointer;
}

.btn:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--c-primary);
  color: #fff;
}

.btn--primary:hover {
  background: #174d30;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--c-accent);
  color: #fff;
}

.btn--secondary:hover {
  background: #b08e3e;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--outline {
  border: 2px solid var(--c-primary);
  color: var(--c-primary);
}

.btn--outline:hover {
  background: var(--c-primary);
  color: #fff;
}

.btn--line {
  background: #06C755;
  color: #fff;
  gap: var(--sp-2);
}

.btn--line:hover {
  background: #05b04b;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.btn--sm {
  padding: 10px 20px;
  font-size: var(--fs-sm);
}

.btn--lg {
  padding: 18px 36px;
  font-size: var(--fs-lg);
}

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-size: var(--fs-xs);
  font-weight: 700;
  background: rgba(31,94,59,.1);
  color: var(--c-primary);
}

.tag--line     { background: rgba(6,199,85,.1);  color: #05a34a; }
.tag--ai       { background: rgba(200,162,77,.12); color: #9a7130; }
.tag--web      { background: rgba(46,139,87,.1);  color: var(--c-secondary); }
.tag--subsidy  { background: rgba(15,23,42,.08);  color: var(--c-muted); }

/* ── Card ── */
.card {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: border-color var(--tr), box-shadow var(--tr), transform var(--tr);
}

.card:hover {
  border-color: var(--c-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ── Breadcrumb ── */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  color: var(--c-muted);
  padding: var(--sp-4) 0;
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: var(--sp-2);
  color: var(--c-border);
}

.breadcrumb__item a:hover {
  color: var(--c-primary);
  text-decoration: underline;
}

/* Breadcrumb on page-hero (dark background) */
.page-hero .breadcrumb {
  color: rgba(255,255,255,.75);
}

.page-hero .breadcrumb__item + .breadcrumb__item::before {
  color: rgba(255,255,255,.35);
}

.page-hero .breadcrumb__item a {
  color: rgba(255,255,255,.75);
}

.page-hero .breadcrumb__item a:hover {
  color: #fff;
  text-decoration: underline;
}

.page-hero .breadcrumb__item[aria-current="page"] {
  color: rgba(255,255,255,.9);
}

/* ── Page Hero ── */
.page-hero {
  padding: calc(var(--header-h) + var(--sp-12)) 0 var(--sp-12);
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-secondary) 100%);
  color: #fff;
  text-align: center;
}

.page-hero__title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-4);
}

.page-hero__desc {
  font-size: var(--fs-lg);
  opacity: .85;
  max-width: 560px;
  margin: 0 auto;
}

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-secondary) 100%);
  color: #fff;
  padding: var(--sp-20) var(--sp-6);
  text-align: center;
}

.cta-banner__title {
  font-size: var(--fs-2xl);
  margin-bottom: var(--sp-4);
}

.cta-banner__desc {
  font-size: var(--fs-lg);
  opacity: .85;
  margin-bottom: var(--sp-8);
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner__desc + .cta-banner__buttons {
  margin-top: var(--sp-8);
}

.cta-banner__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  justify-content: center;
}

.cta-banner__buttons .btn--outline {
  border-color: rgba(255,255,255,.7);
  color: #fff;
}

.cta-banner__buttons .btn--outline:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
}

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--tr), box-shadow var(--tr), background var(--tr);
}

.site-header.is-scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: var(--shadow-sm);
  background: rgba(255,255,255,0.98);
}

.site-header__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--sp-6);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

/* Logo */
.site-header__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
  text-decoration: none;
}

.site-header__logo-mark {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.site-header__logo-text {
  height: 44px;
  width: auto;
  object-fit: contain;
}

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-left: auto;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--c-text);
  border-radius: var(--r-sm);
  transition: color var(--tr), background var(--tr);
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--c-primary);
  background: rgba(31,94,59,.06);
}

/* Header CTAs */
.site-header__ctas {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}

/* Hamburger */
.site-header__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border-radius: var(--r-sm);
  cursor: pointer;
  border: none;
  background: none;
  margin-left: auto;
}

.site-header__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform var(--tr), opacity var(--tr);
}

.site-header__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.site-header__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.site-header__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Drawer */
.site-nav-drawer {
  display: none;
  position: fixed;
  top: var(--header-h);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--c-bg-white);
  padding: var(--sp-6);
  overflow-y: auto;
  z-index: 99;
  flex-direction: column;
  gap: var(--sp-2);
}

.site-nav-drawer.is-open {
  display: flex;
}

.site-nav-drawer__link {
  display: block;
  padding: var(--sp-4) var(--sp-4);
  font-size: var(--fs-lg);
  font-weight: 500;
  border-radius: var(--r-md);
  color: var(--c-text);
  transition: background var(--tr), color var(--tr);
  border-bottom: 1px solid var(--c-border-light);
}

.site-nav-drawer__link:hover {
  background: rgba(31,94,59,.06);
  color: var(--c-primary);
}

.site-nav-drawer__ctas {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
}

.site-nav-drawer__ctas .btn {
  width: 100%;
  justify-content: center;
}

/* Responsive header */
@media (max-width: 1023px) {
  .site-nav,
  .site-header__ctas {
    display: none;
  }

  .site-header__hamburger {
    display: flex;
  }
}

@media (max-width: 767px) {
  .site-header__inner {
    padding: 0 var(--sp-4);
  }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--c-primary);
  color: rgba(255,255,255,.85);
  padding: var(--sp-16) 0 var(--sp-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sp-8);
  margin-bottom: var(--sp-12);
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.site-footer__logo-mark {
  height: 44px;
  width: auto;
  filter: brightness(0) invert(1);
}

.site-footer__logo-text {
  height: 44px;
  width: auto;
  filter: brightness(0) invert(1);
}

.site-footer__tagline {
  font-size: var(--fs-sm);
  line-height: 1.7;
  opacity: .8;
  max-width: 260px;
}

.site-footer__col-title {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--sp-4);
  letter-spacing: 0.06em;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.site-footer__nav a {
  font-size: var(--fs-sm);
  opacity: .75;
  transition: opacity var(--tr);
}

.site-footer__nav a:hover {
  opacity: 1;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.15);
  padding-top: var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  font-size: var(--fs-sm);
  opacity: .65;
}

.site-footer__legal {
  display: flex;
  gap: var(--sp-6);
}

.site-footer__legal a:hover {
  text-decoration: underline;
}

/* LINE CTA in footer */
.footer-line-cta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-4);
}

@media (max-width: 1023px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
  }

  .site-footer__bottom {
    flex-direction: column;
    text-align: center;
  }

  .site-footer__legal {
    flex-wrap: wrap;
    justify-content: center;
  }

  .site-footer__logo-mark,
  .site-footer__logo-text {
    height: 44px;
  }
}

/* ============================================================
   Floating CTA Bar (mobile)
   ============================================================ */
.float-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 98;
  background: var(--c-bg-white);
  border-top: 1px solid var(--c-border);
  padding: var(--sp-3) var(--sp-4);
  box-shadow: 0 -4px 16px rgba(0,0,0,.08);
}

.float-cta__inner {
  display: flex;
  gap: var(--sp-3);
}

.float-cta__inner .btn {
  flex: 1;
  font-size: var(--fs-sm);
  padding: 12px 16px;
}

@media (max-width: 767px) {
  .float-cta {
    display: block;
  }

  body {
    padding-bottom: 68px;
  }
}

/* ============================================================
   Skip link (accessibility)
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  background: var(--c-primary);
  color: #fff;
  padding: var(--sp-2) var(--sp-4);
  border-radius: 0 0 var(--r-sm) var(--r-sm);
  font-size: var(--fs-sm);
  font-weight: 700;
  z-index: 999;
  transition: top .1s;
}

.skip-link:focus {
  top: 0;
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in-up {
  animation: fadeInUp 0.5s ease both;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}