/* ============================================================
   base.css ― リセット・基本タイポグラフィ
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  letter-spacing: var(--tracking-tight);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { margin: 0; padding: 0; }
li { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

h1, h2, h3, h4, p, figure { margin: 0; }

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- 見出し共通 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: var(--fs-caption);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-loose);
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--color-accent);
  display: inline-block;
}

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-lg);
}

.section-head h2 {
  font-size: var(--fs-h1);
  font-weight: var(--fw-black);
  letter-spacing: var(--tracking-tight);
  margin-top: 0.6em;
  line-height: 1.4;
}

.section-head p {
  margin-top: var(--space-sm);
  color: var(--color-ink-soft);
  font-size: var(--fs-lead);
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

.section-head.center .eyebrow { justify-content: center; }
.section-head.center .eyebrow::before { display: none; }

section { position: relative; }

/* ---------- 動的フォト読み込み（Pexels/Pixabay） ---------- */
[data-photo-query] {
  background-color: var(--color-bg-soft);
  transition: opacity var(--dur-mid) var(--ease);
}

img[data-photo-query] {
  opacity: 0;
}

img[data-photo-query].photo-loaded {
  opacity: 1;
}

.section-pad {
  padding-block: var(--space-xl);
}

/* ---------- モバイル専用の改行 ---------- */
.mobile-break { display: none; }

@media (max-width: 700px) {
  .mobile-break { display: inline; }
}

@media (max-width: 720px) {
  .section-pad { padding-block: var(--space-lg); }
}