:root {
  --color-bg: #faf7f2;
  --color-surface: #ffffff;
  --color-text: #2c2520;
  --color-text-muted: #746b60;
  --color-accent: #8a3b2e;
  --color-accent-dark: #6f2f25;
  --color-accent-soft: color-mix(in srgb, var(--color-accent) 22%, white);
  --color-accent-softer: color-mix(in srgb, var(--color-accent) 12%, white);
  --color-divider: color-mix(in srgb, var(--color-text) 22%, transparent);

  --font-heading: "Archivo", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
  --font-body: "Archivo", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;

  --page-pad: clamp(20px, 5vw, 72px);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
}

a { color: var(--color-accent); }

h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

.rule {
  height: 2px;
  border: 0;
  margin: 0;
  background: var(--color-divider);
}

/* — nav — */
.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px var(--page-pad);
  border-bottom: 2px solid var(--color-divider);
  position: sticky;
  top: 0;
  background: var(--color-bg);
  z-index: 10;
}
.nav-brand {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 18px;
  margin-right: auto;
}
.nav a {
  color: inherit;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}
.nav a:hover { color: var(--color-accent); }

/* — hero — */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 64px var(--page-pad) 48px;
}
.hero__text { max-width: 760px; }
.hero__title { font-size: clamp(32px, 5.5vw, 60px); margin: 0 0 24px; }
.hero__title-accent { color: var(--color-accent); white-space: nowrap; }
.hero__lead {
  font-size: 17px;
  line-height: 1.7;
  max-width: 46ch;
  color: var(--color-text-muted);
  margin: 0;
}

/* — photo placeholder frame — */
.photo-frame {
  aspect-ratio: 4 / 3;
  width: 100%;
  border: 2px dashed var(--color-divider);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px;
}
.photo-frame--shot {
  aspect-ratio: auto;
  border: 2px solid var(--color-divider);
  padding: 0;
  overflow: hidden;
}
.photo-frame--shot img {
  display: block;
  width: 100%;
  height: auto;
}
.photo-frame__label {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* — stacked screenshot pair — */
.service__media--stack {
  position: relative;
  width: 100%;
}
.service__media--stack .stack-back { width: 80%; }
.service__media--stack .stack-front {
  position: absolute;
  right: 0;
  bottom: -28px;
  width: 55%;
  background: var(--color-bg);
  padding: 6px;
}
.service__media--stack.stack--left .stack-back { margin-left: auto; }
.service__media--stack.stack--left .stack-front { right: auto; left: 0; }

/* — services — */
.services {
  max-width: 1200px;
  margin: 0 auto;
  padding: 56px var(--page-pad) 32px;
}
.service {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  align-items: center;
  padding: 40px 0;
  border-top: 2px solid var(--color-divider);
}
.service--last { border-bottom: 2px solid var(--color-divider); }
.service--reverse .service__media { order: -1; }
.service__text { flex: 1 1 380px; }
.service__media { flex: 1 1 320px; }
.service__index {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0 0 8px;
}
.service__title { font-size: 26px; margin: 0 0 12px; }
.service__desc {
  font-size: 15.5px;
  line-height: 1.7;
  max-width: 50ch;
  color: var(--color-text-muted);
  margin: 0 0 12px;
}
.service__desc:last-of-type { margin-bottom: 20px; }
.service__links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.service__media--motif {
  display: flex;
  gap: 20px;
  justify-content: center;
  align-items: center;
}
.motif {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(64px, 9vw, 96px);
  line-height: 1;
}
.motif--maru { color: var(--color-accent-soft); }
.motif--batsu { color: var(--color-accent); }

/* — buttons — */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 14px;
  padding: 12px 20px;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--primary { background: var(--color-accent); color: #fff; }
.btn--primary:hover { background: var(--color-accent-dark); }
.btn--secondary { border-color: var(--color-divider); color: var(--color-text); }
.btn--secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* — footer — */
.site-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px var(--page-pad);
  color: var(--color-text-muted);
  font-size: 13px;
}
.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 10px;
}
.site-footer__nav a {
  color: var(--color-text-muted);
}