/* Flow Inside — shared components */

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--paper-2) 94%, transparent);
  border-bottom-color: var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }

.brand__wordmark {
  display: block;
  height: 1.35rem;
  width: auto;
  max-width: min(10.5rem, 58vw);
}

@media (max-width: 420px) {
  .brand__wordmark {
    height: 1.15rem;
    max-width: min(9rem, 62vw);
  }
}

.nav {
  display: none;
  align-items: center;
  gap: clamp(0.85rem, 1.6vw, 1.4rem);
}

.nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--leaf-deep);
}

.nav__cta {
  margin-left: 0.35rem;
  min-height: 2.55rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.88rem;
}

.nav a.nav__cta,
.nav a.nav__cta:hover,
.nav a.nav__cta:focus-visible {
  color: #fff;
}

.nav-toggle {
  width: 1.5rem;
  height: 1.35rem;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
  border: 0;
  background: transparent;
  z-index: 60;
  flex-shrink: 0;
}

@media (max-width: 420px) {
  .nav-toggle {
    width: 1.35rem;
    height: 1.15rem;
  }
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--ink);
  border-radius: var(--r-full);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(calc((1.35rem - 1.5px) / 2)) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(calc((1.35rem - 1.5px) / -2)) rotate(-45deg);
}

@media (max-width: 420px) {
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(calc((1.15rem - 1.5px) / 2)) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(calc((1.15rem - 1.5px) / -2)) rotate(-45deg);
  }
}

.nav-panel {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: var(--paper);
  padding: calc(var(--header-h) + 1.25rem) var(--gutter) 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease), visibility var(--dur) var(--ease);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.nav-panel.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav-panel a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 6.5vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
  min-height: 3rem;
}

.nav-panel a[aria-current="page"] { color: var(--leaf); }

.nav-panel .btn {
  margin-top: 1.75rem;
  align-self: stretch;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: #fff;
  min-height: 3.35rem;
  padding: 0.95rem 1.75rem;
}

.nav-panel .btn:hover,
.nav-panel .btn:focus-visible {
  color: #fff;
}

.nav-panel__meta {
  margin-top: auto;
  padding-top: 2rem;
  color: var(--mute);
  font-size: var(--text-sm);
  line-height: 1.55;
}

@media (min-width: 960px) {
  .nav { display: flex; }
  .nav-toggle { display: none; }
  .nav-panel { display: none !important; }
}

/* Buttons — soft rounded, art-direction aligned */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.9rem;
  padding: 0.7rem 1.45rem;
  border-radius: var(--r-full);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1.5px solid transparent;
  transition:
    background var(--dur) var(--ease),
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.btn:active { transform: translateY(1px); }

.btn:focus-visible {
  outline: 2px solid var(--leaf-deep);
  outline-offset: 3px;
}

.btn--leaf {
  background: var(--leaf);
  color: #fff;
  border-color: var(--leaf);
}
.btn--leaf:hover {
  background: var(--leaf-deep);
  border-color: var(--leaf-deep);
  color: #fff;
  box-shadow: 0 8px 22px rgba(69, 98, 45, 0.22);
}

.btn--soft {
  background: var(--mist);
  color: var(--leaf-deep);
  border-color: var(--mist);
}
.btn--soft:hover {
  background: var(--mist-2);
  color: var(--ink);
}

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  border-color: var(--leaf);
  color: var(--leaf-deep);
}

.btn--on-leaf {
  background: var(--paper);
  color: var(--leaf-deep);
  border-color: var(--paper);
}
.btn--on-leaf:hover {
  background: #fff;
  color: var(--ink);
}
.btn--on-leaf:focus-visible {
  outline-color: #fff;
}

.btn--ghost-on-leaf {
  background: transparent;
  color: var(--paper);
  border-color: rgba(247, 245, 239, 0.5);
}
.btn--ghost-on-leaf:hover {
  border-color: var(--paper);
  color: #fff;
  background: color-mix(in srgb, #fff 10%, transparent);
}
.btn--ghost-on-leaf:focus-visible {
  outline-color: #fff;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

.link-go {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--leaf-deep);
  min-height: 2.5rem;
}
.link-go::after {
  content: "→";
  transition: transform var(--dur) var(--ease);
}
.link-go:hover { color: var(--ink); }
.link-go:hover::after { transform: translateX(4px); }

.link-go--plain::after { content: none; }
.link-go--plain:hover::after { transform: none; }

/* Footer */
.site-footer {
  background: var(--leaf-wash);
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  padding: var(--s-6) 0 var(--s-5);
}

.site-footer a {
  color: var(--ink);
  text-decoration: none;
}
.site-footer a:hover { color: var(--leaf-deep); }

.site-footer__grid {
  display: grid;
  gap: var(--s-5);
  margin-bottom: var(--s-5);
}

@media (min-width: 760px) {
  .site-footer__grid {
    grid-template-columns: 1.35fr 1fr 1fr 1fr;
    gap: var(--s-4);
  }
}

.site-footer__brand {
  display: block;
  height: 1.35rem;
  width: auto;
  max-width: 10.5rem;
  margin: 0 0 0.75rem;
}

.site-footer__intro {
  max-width: 16rem;
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
  color: var(--mute);
}

.site-footer__kbo {
  max-width: 16rem;
  margin: 0.45rem 0 0;
  font-size: 0.82rem;
  line-height: 1.45;
  color: var(--mute);
}

.site-footer__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--leaf);
  margin: 0 0 0.75rem;
}

.site-footer__list {
  display: grid;
  gap: 0.8rem;
  font-size: 0.92rem;
  line-height: 1.45;
}

.site-footer__bottom {
  margin-top: 0;
  padding-top: var(--s-5);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.85rem 1.75rem;
  font-size: 0.82rem;
  color: var(--mute);
}

.site-footer__legal {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.site-footer__dot {
  opacity: 0.55;
}

.site-footer__bottom a { color: var(--mute); }
.site-footer__bottom a:hover { color: var(--leaf-deep); }