:root {
  --ink: #2a2a2a;
  --ink-soft: #5f6360;
  --bg: #ffffff;
  --rule: #e6e6e6;
  --accent: #5f6360;
  --max: 1080px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Helvetica, Arial, "Hiragino Kaku Gothic Pro", "メイリオ", meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

a:hover {
  border-bottom-color: var(--ink);
}

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

/* ---------- Header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 48px;
  border-bottom: 1px solid var(--rule);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.site-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.site-nav a.active {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}

/* ---------- Banner ---------- */

.banner {
  position: relative;
  padding: 180px 24px 140px;
  text-align: center;
  border-bottom: 1px solid var(--rule);
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0.15) 45%, rgba(0,0,0,0.55) 100%),
    url("banner.jpg");
  background-size: cover;
  background-position: center 60%;
  background-repeat: no-repeat;
  color: #fff;
}

.banner-inner {
  position: relative;
  z-index: 1;
}

.title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: 0.18em;
  margin: 0 0 16px;
  color: #fff;
  text-shadow: 0 1px 24px rgba(0, 0, 0, 0.45);
}

.subtitle {
  font-size: 14px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  text-shadow: 0 1px 12px rgba(0, 0, 0, 0.4);
}

/* ---------- Sections ---------- */

section {
  padding: 96px 48px;
  max-width: var(--max);
  margin: 0 auto;
}

.section-label {
  font-size: 12px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 32px;
  font-weight: 600;
}

.section-label.center {
  text-align: center;
}

/* ---------- Profile ---------- */

.profile-grid {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 64px;
  align-items: stretch;
}

.portrait {
  height: 100%;
  margin: 0;
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 44% 38%;
  filter: grayscale(8%);
}

.name-line {
  font-size: 18px;
  font-weight: 600;
  margin: 0 0 24px;
  letter-spacing: 0.04em;
}

.name-alt {
  margin-left: 8px;
  color: var(--ink-soft);
  font-weight: 400;
  font-size: 15px;
}

.bio p {
  margin: 0 0 18px;
  color: var(--ink);
}

.bio em {
  font-style: italic;
}

/* ---------- Music ---------- */

.music {
  text-align: center;
}

.section-title {
  font-size: 30px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  margin: 0 0 56px;
  padding-bottom: 18px;
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 14px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 28px;
  height: 1px;
  background: var(--ink);
}

.section-title-alt {
  font-size: 15px;
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: 0.1em;
}

.works-list {
  list-style: none;
  padding: 0;
  margin: 0 auto 64px;
  max-width: 720px;
  text-align: left;
  border-top: 1px solid var(--rule);
}

.work {
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: baseline;
  gap: 24px;
  padding: 22px 4px;
  border-bottom: 1px solid var(--rule);
  transition: background-color 0.2s ease;
}

.work:hover {
  background-color: #fafafa;
}

.work-number {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.work-title {
  font-size: 19px;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.work-links {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}

.work-link {
  color: var(--ink-soft);
  border-bottom: 1px solid transparent;
}

.work-link:hover {
  color: var(--ink);
  border-bottom-color: var(--ink);
}

.work-sep {
  margin: 0 10px;
  opacity: 0.6;
}

.music-card {
  max-width: 720px;
  margin: 0 auto;
}

.video-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border: 1px solid var(--rule);
  margin-bottom: 24px;
  overflow: hidden;
}

.video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.music-note {
  color: var(--ink-soft);
  font-size: 15px;
}

/* ---------- Contact ---------- */

.contact {
  text-align: center;
  padding-top: 32px;
}

.contact-line {
  font-size: 20px;
  margin: 0 0 12px;
  letter-spacing: 0.02em;
}

.contact-line a {
  border-bottom: 1px solid var(--rule);
}

.contact-sub {
  color: var(--ink-soft);
  font-size: 14px;
  letter-spacing: 0.04em;
  margin: 0;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 32px 48px;
  text-align: center;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Responsive ---------- */

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    gap: 16px;
    padding: 20px 24px;
  }

  .site-nav ul {
    gap: 20px;
  }

  .banner {
    padding: 80px 20px 56px;
  }

  section {
    padding: 64px 24px;
  }

  .profile-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .portrait {
    max-width: 360px;
    margin: 0 auto;
  }

  .work {
    grid-template-columns: 36px 1fr;
    row-gap: 6px;
    column-gap: 16px;
  }

  .work-links {
    grid-column: 2;
  }
}