/**
 * components.css — 버튼, 폼, 카드, 네비게이션
 */

/* ----- 헤더 / 네비 ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  border: none;
  border-bottom: none;
  box-shadow: none;
  will-change: transform;
}

/**
 * 스크롤 다운 시 위로 숨김 · 스크롤 업 시 아래로 복귀 (header-progress.js)
 */
.site-header.process-header.site-header--scroll-hidden {
  transform: translate3d(0, -100%, 0);
  pointer-events: none;
}

/* fixed 헤더 높이만큼 본문 패딩 */
main {
  padding-top: 0;
}
html[data-intro-state="done"] main {
  padding-top: var(--header-height);
}

.nav-main ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1rem;
  min-height: var(--header-height);
  align-items: center;
}

.nav-main a {
  padding: 0.5rem 0.75rem;
  display: inline-block;
}

@media (hover: hover) and (pointer: fine) {
  .nav-main a:hover {
    opacity: 0.88;
  }
}

/* ----- 버튼 (마우스·정밀 포인터에서만 호버 — 터치 고착 방지) ----- */
button,
[type="submit"] {
  font: inherit;
  cursor: pointer;
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border: none;
  border-radius: 4px;
  transition:
    opacity 0.22s var(--ease-smooth, ease-in-out),
    filter 0.22s var(--ease-smooth, ease-in-out),
    box-shadow 0.22s var(--ease-smooth, ease-in-out);
}

button:disabled,
[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (hover: hover) and (pointer: fine) {
  /* transform 미사용: 캐러셀 등 translateY(-50%) 버튼과 충돌 방지 */
  button:hover:not(:disabled):not([aria-disabled="true"]):not(.process-header__share):not(.time-carousel__btn):not(.section3-p5-tabs__tab):not(.guestbook-hero__cta),
  [type="submit"]:hover:not(:disabled):not([aria-disabled="true"]) {
    filter: brightness(1.08);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.16);
  }

  button:active:not(:disabled):not([aria-disabled="true"]):not(.process-header__share):not(.time-carousel__btn):not(.section3-p5-tabs__tab):not(.guestbook-hero__cta),
  [type="submit"]:active:not(:disabled):not([aria-disabled="true"]) {
    filter: brightness(0.95);
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.12);
  }
}

a:focus-visible,
button:focus-visible,
[type="submit"]:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  button,
  [type="submit"] {
    transition-duration: 0.05s;
  }
}

/* ----- 폼 ----- */
label {
  display: block;
  margin-top: 0.75rem;
  margin-bottom: 0.25rem;
}

input[type="text"],
textarea {
  font: inherit;
  width: 100%;
  max-width: 30rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color 0.2s var(--ease-smooth, ease-in-out), box-shadow 0.2s var(--ease-smooth, ease-in-out);
}

input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 0;
}


/* ----- 푸터 ----- */
.site-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.site-footer .container {
  padding-inline: 1rem;
}

.site-footer p {
  margin: 0;
}