/* TY4WHALE — Layout: Nav / Footer / Container / Card / Grid */

/* ===== Container ===== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ===== Main ===== */

main {
  flex: 1;
  padding: var(--space-12) 0;
}

/* ===== Nav ===== */

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.nav__logo:hover {
  opacity: 0.75;
}

.nav__links {
  display: flex;
  gap: var(--space-8);
  align-items: center;
}

.nav__links a {
  font-family: 'Dot Gothic 16', monospace;
  font-size: 13px;
  font-weight: 400;
  color: var(--color-text-secondary);
  letter-spacing: 0.08em;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.nav__links a:hover,
.nav__links a.active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-primary);
}

/* ===== Footer ===== */

.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.footer__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.footer__links {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer__links a {
  font-size: 14px;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  transition: color var(--transition-fast);
  /* タッチターゲット最小サイズ確保 */
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__copy {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

/* ===== Card ===== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: var(--space-6);
  box-shadow: var(--shadow-1);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-2);
}

/* ===== Page Header ===== */

.page-header {
  margin-bottom: var(--space-12);
}

.page-header h1 {
  margin-bottom: var(--space-2);
}

.page-header p {
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ===== Grid ===== */

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

/* ===== Observer Page ===== */

/* Loading / Error */
.status-msg {
  padding: var(--space-12);
  text-align: center;
  color: var(--color-text-muted);
}

.status-msg--error {
  color: var(--color-error);
}

/* ===== Home Page ===== */

.home-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0;
}

.home-hero {
  position: relative;
  min-height: calc(100vh - 56px);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: var(--space-16) var(--space-12);
}

/* Layer 0: Video */
.home-hero__video-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.home-hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* Layer 1: Background image with transparent window */
.home-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  z-index: 1;
  pointer-events: none;
  display: block;
}

/* Layer 2: Content (nav items 左下) */
.home-hero__content {
  position: relative;
  z-index: 2;
}

/* Nav logo (in sticky nav) */
.nav__logo-img {
  display: block;
  height: 28px;
  width: auto;
}

/* Vertical nav items */
.home-nav {
  display: flex;
  flex-direction: column;
}

.home-nav__item {
  display: block;
  padding: var(--space-3) var(--space-8);
  text-decoration: none;
  color: var(--color-text-secondary);
  font-family: 'Dot Gothic 16', monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  border: 1px solid var(--color-border);
  background: transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  min-height: 44px;
  display: flex;
  align-items: center;
}

.home-nav__item + .home-nav__item {
  border-top: none;
}

.home-nav__item:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* ===== Music Page ===== */

.music-card {
  display: block;
  text-decoration: none;
}

.music-card__service {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  font-feature-settings: "palt" 1;
}

.music-card__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.music-card__url {
  font-size: 13px;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}

/* ===== Drawing Page ===== */

.coming-soon {
  text-align: center;
  padding: var(--space-24) var(--space-6);
}

.coming-soon h1 {
  font-size: 32px;
  margin-bottom: var(--space-4);
}

.coming-soon p {
  color: var(--color-text-secondary);
  font-size: 15px;
}

/* ===== Responsive ===== */

@media (max-width: 767px) {
  main {
    padding: var(--space-8) 0;
  }

  .home-hero {
    padding: var(--space-8) var(--space-6);
    min-height: calc(100vh - 56px);
  }

  .home-nav__item {
    font-size: 12px;
    padding: var(--space-3) var(--space-6);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .nav__links {
    gap: var(--space-4);
  }

  .nav__links a {
    font-size: 11px;
  }

  .footer__inner {
    height: auto;
    padding: var(--space-4) var(--space-6);
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .footer__links {
    gap: var(--space-4);
  }

}

@media (min-width: 768px) and (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}