/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-feature-settings: "palt";
  color: #333;
  background: #FFFAF5;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; color: inherit; }

:root {
  --orange: #E8793B;
  --orange-light: #FFF0E6;
  --orange-deep: #D4622A;
  --coral: #F5896B;
  --yellow: #F5C843;
  --yellow-light: #FFF8E1;
  --green: #4CAF93;
  --green-light: #E8F5F0;
  --blue: #5B9BD5;
  --blue-light: #EBF3FB;
  --purple: #9B7DC8;
  --purple-light: #F3EEF9;
  --ink: #333333;
  --ink-soft: #666666;
  --ink-muted: #999999;
  --bg: #FFFAF5;
  --bg-white: #FFFFFF;
  --bg-warm: #FFF5ED;
  --line: #F0E6DC;
  --line-light: #F5EDE5;
  --max: 1080px;
  --radius: 16px;
  --radius-lg: 24px;
}

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ===== Scroll animation ===== */
.section, .hero__inner {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.section.is-visible, .hero__inner.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Header ===== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  background: rgba(255, 250, 245, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(240, 230, 220, 0.6);
}
.header__inner {
  max-width: var(--max); margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 24px;
}
.header__logo {
  font-weight: 800; font-size: 15px; letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.header__logo-icon { font-size: 18px; }
.header__nav {
  display: flex; gap: 20px; margin-left: auto;
}
.header__link {
  font-size: 13px; font-weight: 600; color: var(--ink-soft);
  transition: color 0.2s;
}
.header__link:hover { color: var(--orange); }
.header__date {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 700;
  color: var(--orange);
  background: var(--orange-light);
  padding: 6px 14px; border-radius: 999px;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

@media (max-width: 640px) {
  .header__nav { display: none; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 140px 24px 80px;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 50% at 85% 15%, rgba(232, 121, 59, 0.12), transparent 60%),
    radial-gradient(50% 50% at 10% 80%, rgba(245, 200, 67, 0.10), transparent 60%),
    radial-gradient(40% 40% at 50% 50%, rgba(76, 175, 147, 0.06), transparent 50%),
    linear-gradient(180deg, #FFFFFF 0%, #FFFAF5 100%);
}
.hero__inner { max-width: var(--max); margin: 0 auto; }
.hero__eyebrow {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: 0.22em;
  color: var(--orange);
  background: var(--orange-light);
  padding: 8px 16px; border-radius: 999px;
  margin-bottom: 28px;
}
.hero__title {
  font-size: clamp(36px, 7vw, 68px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
  color: var(--ink);
}
.hero__title-marker {
  background: linear-gradient(transparent 60%, rgba(245, 200, 67, 0.35) 60%);
  padding: 0 4px;
}
.hero__sub {
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--ink-soft);
  margin-bottom: 36px;
  line-height: 2;
}
.hero__info {
  display: flex; gap: 16px; flex-wrap: wrap;
  margin-bottom: 32px;
}
.hero__info-item {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px 20px;
  display: flex; flex-direction: column; gap: 4px;
  min-width: 120px;
}
.hero__info-label {
  font-size: 11px; font-weight: 700;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
}
.hero__info-value {
  font-size: 16px; font-weight: 800;
  color: var(--orange);
}
.hero__notice {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--ink-soft);
  background: var(--yellow-light);
  border: 1px solid #FDE68A;
  padding: 12px 18px; border-radius: 12px;
}
.hero__notice-dot {
  width: 8px; height: 8px;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ===== Section base ===== */
.section { padding: 80px 0; }
.section__label {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: 0.24em;
  color: var(--orange); margin-bottom: 12px;
}
.section__title {
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 900; line-height: 1.4;
  margin-bottom: 14px;
  color: var(--ink);
}
.section__lead {
  font-size: 15px; color: var(--ink-soft);
  line-height: 2; margin-bottom: 40px;
  max-width: 640px;
}

.text-marker {
  background: linear-gradient(transparent 60%, rgba(245, 200, 67, 0.35) 60%);
  padding: 0 2px;
}

/* ===== Schedule Section ===== */
.section--schedule { background: var(--bg); }

/* Date tabs */
.date-tabs {
  display: flex; gap: 12px;
  margin-bottom: 32px;
}
.date-tab {
  flex: 1;
  background: var(--bg-white);
  border: 2px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.date-tab:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 121, 59, 0.1);
}
.date-tab--active {
  border-color: var(--orange);
  background: var(--orange-light);
}
.date-tab--main .date-tab__day { color: var(--orange); }
.date-tab__day {
  font-family: 'Inter', sans-serif;
  font-size: 28px; font-weight: 800;
  line-height: 1;
  color: var(--ink);
}
.date-tab--active .date-tab__day { color: var(--orange); }
.date-tab__label {
  font-size: 13px; font-weight: 700;
  color: var(--ink-muted);
}
.date-tab__desc {
  font-size: 12px; font-weight: 700;
  color: var(--orange);
  background: rgba(232, 121, 59, 0.08);
  padding: 3px 10px; border-radius: 999px;
  margin-top: 4px;
}

/* Date content */
.date-content { display: none; }
.date-content--active { display: block; }

/* Time tabs (7/11 sub-navigation) */
.time-tabs {
  display: flex; gap: 8px;
  margin-bottom: 28px;
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
}
.time-tab {
  flex: 1;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px; font-weight: 700;
  color: var(--ink-soft);
  transition: all 0.25s ease;
  text-align: center;
}
.time-tab:hover { color: var(--orange); }
.time-tab--active {
  background: var(--orange);
  color: #fff;
}

/* Time content */
.time-content { display: none; }
.time-content--active { display: block; }

/* Time section */
.time-section { margin-bottom: 24px; }
.time-section__header {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 12px;
}
.time-section__badge {
  font-size: 12px; font-weight: 700;
  padding: 5px 14px; border-radius: 999px;
  letter-spacing: 0.02em;
}
.time-section__badge--morning { background: #FFF3E0; color: #E65100; }
.time-section__badge--day { background: #E8F5E9; color: #2E7D32; }
.time-section__badge--eve { background: #FFF0E6; color: var(--orange); }
.time-section__badge--night { background: #E8EAF6; color: #283593; }
.time-section__badge--late { background: #F3E5F5; color: #6A1B9A; }
.time-section__title {
  font-size: 20px; font-weight: 800;
  color: var(--ink);
}
.time-section__desc {
  font-size: 14px; color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 20px;
}

/* Event cards */
.event-cards {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.event-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  display: flex; flex-direction: column;
  position: relative;
  transition: all 0.3s ease;
}
.event-card:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(232, 121, 59, 0.12);
}
.event-card--main {
  background: linear-gradient(135deg, #FFFAF5 0%, #FFF0E6 100%);
  border-color: rgba(232, 121, 59, 0.3);
}
.event-card__time {
  font-family: 'Inter', sans-serif;
  font-size: 13px; font-weight: 700;
  color: var(--orange);
  margin-bottom: 8px;
}
.event-card__title {
  font-size: 17px; font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.4;
}
.event-card__desc {
  font-size: 13px; color: var(--ink-soft);
  line-height: 1.75;
  margin-bottom: 14px;
  flex-grow: 1;
}
.event-card__tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 8px;
}
.event-card__arrow {
  position: absolute; right: 20px; bottom: 20px;
  font-size: 18px; font-weight: 800;
  color: var(--orange);
  transition: transform 0.2s ease;
}
.event-card:hover .event-card__arrow { transform: translateX(4px); }

/* Tags */
.tag {
  font-size: 11px; font-weight: 700;
  padding: 3px 10px; border-radius: 999px;
}
.tag--style { background: var(--blue-light); color: var(--blue); }
.tag--genre { background: var(--green-light); color: var(--green); }

/* ===== Theme Section ===== */
.section--theme {
  background: linear-gradient(180deg, #FFFAF5 0%, #FFF5ED 100%);
}

/* Filter chips */
.filter-group { margin-bottom: 20px; }
.filter-group + .filter-group { margin-bottom: 36px; }
.filter-group__label {
  font-size: 13px; font-weight: 700;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.filter-chips {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.chip {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 14px; font-weight: 600;
  color: var(--ink-soft);
  background: var(--bg-white);
  border: 1.5px solid var(--line);
  transition: all 0.25s ease;
}
.chip:hover {
  border-color: var(--orange);
  color: var(--orange);
}
.chip--active {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
}

/* Theme cards */
.theme-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, 1fr);
}
.theme-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px 28px 20px;
  transition: all 0.3s ease;
}
.theme-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}
.theme-card__icon {
  font-size: 36px;
  margin-bottom: 14px;
}
.theme-card__title {
  font-size: 20px; font-weight: 800;
  color: var(--ink);
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 3px solid var(--orange);
  display: inline-block;
}
.theme-card__desc {
  font-size: 13px; color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 18px;
}
.theme-card__links { display: flex; flex-direction: column; }
.theme-card__links li {
  border-bottom: 1px solid var(--line-light);
}
.theme-card__links li:last-child { border-bottom: none; }
.theme-card__links a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 4px;
  font-size: 14px; font-weight: 600;
  color: var(--ink);
  transition: all 0.2s ease;
}
.theme-card__links a::after {
  content: "\2192";
  color: var(--orange);
  font-weight: 800;
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.2s ease;
}
.theme-card__links a:hover {
  color: var(--orange);
  padding-left: 8px;
}
.theme-card__links a:hover::after {
  opacity: 1;
  transform: translateX(0);
}

@media (max-width: 720px) {
  .theme-grid { grid-template-columns: 1fr; }
}

/* ===== Model Course ===== */
.section--course {
  background: var(--bg-white);
}
.course-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(3, 1fr);
}
.course-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px 28px 28px;
  text-align: center;
  transition: all 0.3s ease;
  display: flex; flex-direction: column; align-items: center;
}
.course-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(232, 121, 59, 0.10);
  border-color: var(--orange);
}
.course-card__icon {
  font-size: 48px;
  margin-bottom: 16px;
}
.course-card__title {
  font-size: 18px; font-weight: 800;
  color: var(--ink);
  margin-bottom: 10px;
}
.course-card__desc {
  font-size: 13px; color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 18px;
  flex-grow: 1;
}
.course-card__link {
  font-size: 14px; font-weight: 700;
  color: var(--orange);
  transition: transform 0.2s;
  display: inline-block;
}
.course-card:hover .course-card__link { transform: translateX(4px); }

@media (max-width: 720px) {
  .course-grid { grid-template-columns: 1fr; }
}

/* ===== About ===== */
.section--about {
  background: var(--bg);
  padding: 80px 0 100px;
}
.about-card {
  background: linear-gradient(135deg, #333 0%, var(--orange-deep) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  box-shadow: 0 24px 60px rgba(232, 121, 59, 0.18);
}
.about-card__label {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: 0.24em;
  opacity: 0.7; margin-bottom: 14px;
}
.about-card__title {
  font-size: clamp(24px, 3.5vw, 34px);
  font-weight: 900; line-height: 1.4;
  margin-bottom: 22px;
}
.about-card__body {
  font-size: 15px; line-height: 2;
  opacity: 0.94;
  margin-bottom: 16px;
}
.about-card__body strong { color: #FFD9B3; font-weight: 700; }
.about-card__links { margin-top: 28px; }
.about-card__link {
  display: inline-flex; align-items: center;
  font-size: 15px; font-weight: 700;
  color: #fff;
  border-bottom: 2px solid #FFD9B3;
  padding-bottom: 4px;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.about-card__link:hover { opacity: 0.85; transform: translateX(4px); }

/* ===== Footer ===== */
.footer {
  background: #333; color: #999;
  padding: 32px 0;
}
.footer__inner { text-align: center; font-size: 13px; }

/* ===== Sub-page common ===== */
.subpage {
  padding: 110px 0 80px;
  min-height: 80vh;
}
.subpage__back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600;
  color: var(--orange);
  margin-bottom: 24px;
  transition: transform 0.2s ease;
}
.subpage__back:hover { transform: translateX(-4px); }
.subpage__eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 12px; font-weight: 700; letter-spacing: 0.22em;
  color: var(--orange);
  margin-bottom: 14px;
}
.subpage__title {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
}
.subpage__lead {
  font-size: 16px; color: var(--ink-soft);
  line-height: 1.95;
  margin-bottom: 40px;
  max-width: 720px;
}
.placeholder-card {
  background: var(--yellow-light);
  border: 1px dashed #FDE68A;
  border-radius: var(--radius);
  padding: 36px 32px;
  margin-bottom: 32px;
}
.placeholder-card h3 {
  font-size: 18px; font-weight: 800;
  margin-bottom: 12px;
}
.placeholder-card p {
  font-size: 14px; color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 10px;
}
.placeholder-card ul {
  margin: 12px 0 0 20px;
  list-style: disc;
}
.placeholder-card li {
  font-size: 14px; color: var(--ink-soft);
  line-height: 1.85;
  margin-bottom: 4px;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .hero { padding: 110px 20px 60px; }
  .section { padding: 60px 0; }
  .about-card { padding: 36px 24px; }

  .date-tabs { gap: 8px; }
  .date-tab { padding: 14px 10px; }
  .date-tab__day { font-size: 22px; }

  .time-tabs { flex-wrap: wrap; border-radius: var(--radius); }
  .time-tab { border-radius: 10px; padding: 8px 12px; font-size: 13px; }

  .hero__info { gap: 10px; }
  .hero__info-item { min-width: 0; flex: 1; padding: 12px 14px; }
}