:root {
  --bg: #f6f3eb;
  --paper: #fffdf7;
  --ink: #26312f;
  --muted: #66716d;
  --line: #d9d0bf;
  --field: #517d65;
  --track: #a7563f;
  --sand: #d6bc78;
  --focus: #1f6f8b;
  --shadow: 0 14px 34px rgba(56, 45, 28, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 253, 247, 0.94);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 210px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 2px solid var(--track);
  border-radius: 6px;
  color: var(--track);
  font-weight: 800;
  letter-spacing: 0;
  background: #fff7e3;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 1.04rem;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 0.94rem;
}

.top-nav a {
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--ink);
  border-color: var(--field);
}

.login-link {
  color: var(--ink) !important;
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: clamp(22px, 4vw, 48px);
  align-items: center;
  padding: clamp(28px, 5vw, 64px) clamp(18px, 4vw, 56px) clamp(18px, 4vw, 42px);
}

.hero-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: var(--shadow);
  background: var(--sand);
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--track);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4.8vw, 4rem);
  line-height: 1.18;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.25;
  letter-spacing: 0;
}

h3 {
  margin: 6px 0 8px;
  font-size: 1.06rem;
  letter-spacing: 0;
}

.hero-copy p:not(.eyebrow),
.policy-text p,
.video-panel p,
.login-note,
.support-note {
  color: var(--muted);
}

.hero-actions {
  margin-top: 20px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 2px;
  color: var(--field);
  font-weight: 800;
  border-bottom: 2px solid var(--field);
}

.section-block {
  padding: clamp(36px, 6vw, 72px) clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
}

.section-block.muted {
  background: #efe8d7;
}

.section-title {
  margin-bottom: 22px;
}

.notice-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.notice-item,
.schedule-grid > div,
.login-panel {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: 0 8px 22px rgba(56, 45, 28, 0.08);
}

.notice-item {
  padding: 18px;
}

.notice-item p,
.schedule-grid p {
  margin: 0;
  color: var(--muted);
}

.schedule-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.schedule-grid > div {
  padding: 18px;
  border-left: 6px solid var(--field);
}

.schedule-grid span,
.schedule-grid strong {
  display: block;
}

.schedule-grid span {
  color: var(--track);
  font-size: 0.84rem;
  font-weight: 800;
}

.schedule-grid strong {
  margin: 4px 0 8px;
  font-size: 1.1rem;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(220px, 0.45fr) minmax(0, 1fr);
  gap: clamp(18px, 4vw, 44px);
}

.policy-text {
  max-width: 760px;
}

.policy-text p:first-child {
  margin-top: 0;
}

.video-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
  gap: clamp(18px, 4vw, 36px);
  align-items: center;
  padding: clamp(20px, 4vw, 30px);
  border: 1px solid var(--line);
  border-left: 6px solid var(--track);
  border-radius: 6px;
  background: var(--paper);
  box-shadow: 0 8px 22px rgba(56, 45, 28, 0.08);
}

.video-panel p {
  margin-bottom: 0;
}

.video-action {
  display: grid;
  gap: 10px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 22px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.login-page {
  background:
    linear-gradient(90deg, rgba(81, 125, 101, 0.08) 0 1px, transparent 1px 100%),
    linear-gradient(0deg, rgba(167, 86, 63, 0.07) 0 1px, transparent 1px 100%),
    var(--bg);
  background-size: 38px 38px;
}

.login-main {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 166px);
  padding: clamp(32px, 7vw, 80px) 18px;
}

.login-panel {
  width: min(100%, 460px);
  padding: clamp(22px, 5vw, 34px);
}

.login-panel h1 {
  font-size: clamp(1.8rem, 7vw, 2.6rem);
}

.form-stack {
  display: grid;
  gap: 10px;
  margin-top: 24px;
}

.form-stack label {
  font-weight: 700;
}

.form-stack input {
  width: 100%;
  min-height: 46px;
  border: 1px solid #c9bdaa;
  border-radius: 4px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fffefa;
  font: inherit;
}

.form-stack input:focus {
  outline: 3px solid rgba(31, 111, 139, 0.22);
  border-color: var(--focus);
}

.primary-button {
  min-height: 48px;
  margin-top: 8px;
  border: 0;
  border-radius: 4px;
  color: #fff;
  background: var(--field);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.primary-button:hover,
.primary-button:focus-visible {
  background: #426d56;
}

.status-message {
  min-height: 48px;
  margin: 2px 0 0;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 4px;
  color: transparent;
}

.status-message.is-visible {
  border-color: #d5b16a;
  color: #5b4320;
  background: #fff4d6;
}

.status-message.compact {
  min-height: 44px;
  margin: 0;
}

.support-note {
  margin: 18px 0 0;
  font-size: 0.9rem;
}

@media (max-width: 820px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    justify-content: flex-start;
  }

  .hero,
  .two-column,
  .video-panel {
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: none;
  }

  .notice-list,
  .schedule-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 460px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand {
    min-width: 0;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
  }

  .top-nav {
    gap: 4px 14px;
    font-size: 0.88rem;
  }

  .hero,
  .section-block {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-footer {
    flex-direction: column;
    padding-left: 16px;
    padding-right: 16px;
  }
}