/* ハルモニームジーク福岡 — design.md 準拠 */
:root {
  --color-primary: #6d4c41;
  --color-primary-dark: #4e342e;
  --color-secondary: #1a237e;
  --color-secondary-dark: #11195e;
  --color-accent: #c5a059;
  --color-accent-soft: #e8d7b0;
  --color-bg: #fcf9f2;
  --color-bg-alt: #f4efe6;
  --color-surface: #ffffff;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-border: #d8cfc2;
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --container: 1120px;
  --container-narrow: 720px;
  --section-y: clamp(3rem, 6vw, 6rem);
  --font-heading-ja: "Shippori Mincho", "Yu Mincho", "Hiragino Mincho ProN", serif;
  --font-heading-en: "Playfair Display", Georgia, serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-accent: "Klee One", cursive;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--color-text);
  background: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
  vertical-align: middle;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 1.5rem);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* —— Header —— */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(252, 249, 242, 0.97);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
  padding-block: 0.75rem;
}

.site-logo {
  font-family: var(--font-heading-en);
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  text-decoration: none;
  line-height: 1.3;
}

.site-logo:hover {
  text-decoration: none;
  color: var(--color-primary-dark);
}

.site-logo small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 1.25rem;
  height: 2px;
  background: var(--color-primary);
  position: relative;
}

.nav-toggle__bar::before,
.nav-toggle__bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
}

.nav-toggle__bar::before {
  top: -6px;
}

.nav-toggle__bar::after {
  top: 6px;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  font-size: 0.9375rem;
  color: var(--color-text);
  text-decoration: none;
}

.site-nav__list a:hover {
  color: var(--color-secondary);
  text-decoration: underline;
}

.site-nav__list a[aria-current="page"] {
  color: var(--color-primary);
  font-weight: 600;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .site-nav.is-open {
    max-height: 24rem;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem 1.5rem;
    gap: 0;
  }

  .site-nav__list li {
    border-bottom: 1px solid var(--color-bg-alt);
  }

  .site-nav__list a {
    display: block;
    padding: 0.75rem 0;
  }
}

/* —— Main offset for fixed header —— */
main {
  padding-top: 4rem;
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: min(85vh, 640px);
  display: flex;
  align-items: center;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    rgba(252, 249, 242, 0.92) 0%,
    rgba(252, 249, 242, 0.75) 45%,
    rgba(252, 249, 242, 0.55) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 36rem;
  padding-block: var(--section-y);
}

.hero__label {
  font-family: var(--font-accent);
  font-size: 0.9375rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.hero h1 {
  font-family: var(--font-heading-ja);
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 1rem;
  color: var(--color-secondary-dark);
}

.hero__lead {
  font-size: 1.0625rem;
  color: var(--color-text);
  margin: 0 0 1.75rem;
  line-height: 1.85;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

/* —— Sections —— */
.section {
  padding-block: var(--section-y);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__head {
  margin-bottom: clamp(1.5rem, 4vw, 2.5rem);
  max-width: 40rem;
}

.section__eyebrow {
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-family: var(--font-heading-en);
  margin: 0 0 0.5rem;
}

.section h2 {
  font-family: var(--font-heading-ja);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--color-secondary-dark);
}

.section__intro {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 1rem;
}

/* —— Buttons —— */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.5rem 1.35rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.btn--secondary {
  background: transparent;
  color: var(--color-secondary);
  border: 1px solid var(--color-accent);
}

.btn--secondary:hover {
  background: var(--color-bg-alt);
  color: var(--color-secondary-dark);
}

/* —— Cards & concert —— */
.card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card h3 {
  font-family: var(--font-heading-ja);
  font-size: 1.2rem;
  margin: 0 0 0.5rem;
  color: var(--color-primary-dark);
}

.card__meta {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
}

.concert-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 2rem;
  overflow: hidden;
}

.concert-block__head {
  background: var(--color-bg-alt);
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.concert-block__head h3 {
  margin: 0;
  font-family: var(--font-heading-ja);
  font-size: 1.25rem;
  color: var(--color-secondary-dark);
}

.concert-block__body {
  display: grid;
  gap: 1.5rem;
  padding: 1.5rem;
}

@media (min-width: 768px) {
  .concert-block__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 280px);
    align-items: start;
  }
}

.concert-block dl {
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.concert-block dt {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

.concert-block dd {
  margin: 0.15rem 0 0;
  font-size: 0.9375rem;
}

.concert-block__poster {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--color-bg-alt);
}

.concert-block__poster figcaption {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  padding: 0.5rem 0.75rem;
}

.program-list {
  margin: 0;
  padding-left: 1.25rem;
  font-size: 0.9375rem;
}

.program-list li {
  margin-bottom: 0.35rem;
}

/* —— Two column —— */
.two-col {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

/* —— Lists / organizers —— */
.check-list {
  margin: 0;
  padding-left: 1.25rem;
}

.check-list li {
  margin-bottom: 0.5rem;
}

.note-box {
  background: var(--color-surface);
  border-left: 3px solid var(--color-accent);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* —— Form —— */
.form {
  max-width: 36rem;
}

.form__row {
  margin-bottom: 1.25rem;
}

.form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.form .optional {
  font-weight: 400;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
}

.form .form__req {
  font-weight: 400;
  color: var(--color-primary);
  font-size: 0.8125rem;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: var(--font-body);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
}

.form textarea {
  min-height: 8rem;
  resize: vertical;
}

.form__hint {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin: 0.35rem 0 0;
}

/* —— Gallery —— */
.gallery-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-item figcaption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.5rem 0.75rem;
  font-size: 0.75rem;
  background: rgba(26, 35, 126, 0.75);
  color: #fff;
}

/* —— News list —— */
.news-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.news-list li {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.news-list time {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.news-list h3 {
  margin: 0;
  font-size: 1.0625rem;
  font-family: var(--font-heading-ja);
  font-weight: 600;
}

/* —— Footer —— */
.site-footer {
  background: var(--color-secondary-dark);
  color: rgba(255, 255, 255, 0.88);
  padding-block: 3rem 2rem;
  margin-top: 2rem;
}

.site-footer a {
  color: var(--color-accent-soft);
}

.site-footer a:hover {
  color: #fff;
}

.site-footer__grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer h3 {
  font-family: var(--font-heading-ja);
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: #fff;
}

.site-footer p,
.site-footer address {
  margin: 0;
  font-size: 0.9375rem;
  font-style: normal;
  line-height: 1.8;
}

.footer-nav {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li {
  margin-bottom: 0.4rem;
}

.footer-nav a {
  font-size: 0.9375rem;
}

.site-footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.65);
}

/* —— Utility —— */
.text-center {
  text-align: center;
}

.mt-0 {
  margin-top: 0;
}

.mb-lg {
  margin-bottom: 2rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}