:root{
  --bg: #f8f5ef;
  --surface: #ffffff;
  --surface-soft: #f3eee4;
  --surface-alt: #eef3fb;
  --text: #1f2937;
  --text-soft: #5b6573;
  --text-on-dark: #ffffff;
  --primary: #243c8f;
  --primary-dark: #1c2f70;
  --primary-soft: #e7edfb;
  --accent: #c84b31;
  --accent-dark: #a63d28;
  --accent-soft: #f9e7e2;
  --gold: #b88a1b;
  --gold-soft: #f7f0d9;
  --green: #5f7d4a;
  --green-soft: #e9f0e4;
  --line: #d8d2c3;
  --line-strong: #b9b09a;
  --shadow-soft: 0 6px 18px rgba(36, 60, 143, 0.08);
  --radius: 14px;
  --container: 1120px;
}

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

html{
  scroll-behavior: smooth;
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Meiryo", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover{
  text-decoration: underline;
}

strong{
  font-weight: 700;
}

.container{
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.page{
  padding-block: 20px 28px;
}

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(248, 245, 239, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-dark);
  text-decoration: none;
  min-width: 0;
}

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

.logo{
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 8px;
}

.header nav{
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.header nav a{
  color: var(--primary-dark);
  font-weight: 600;
  font-size: 14px;
  padding: 8px 10px;
  border-radius: 10px;
}

.header nav a:hover{
  text-decoration: none;
  background: var(--primary-soft);
}

/* Typography */
h1, h2, h3, h4{
  line-height: 1.3;
  margin: 0 0 12px;
}

h1{
  font-size: clamp(1.9rem, 3vw, 2.35rem);
}

h2{
  font-size: clamp(1.35rem, 2.2vw, 1.7rem);
}

h3{
  font-size: 1.15rem;
}

p{
  margin: 0 0 14px;
}

ul, ol{
  margin: 0 0 14px;
}

li + li{
  margin-top: 6px;
}

hr{
  border: 0;
  border-top: 1px solid var(--line);
}

/* Shared cards */
.card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.card + .card{
  margin-top: 16px;
}

/* Forms */
label{
  display: inline-block;
  margin-bottom: 6px;
}

input,
select,
textarea,
button{
  font: inherit;
}

.input,
input[type="text"],
input[type="search"],
input[type="email"],
input[type="number"],
textarea,
select{
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
  padding: 12px 14px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus,
input[type="text"]:focus,
input[type="search"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus{
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(36, 60, 143, 0.12);
}

button,
.primary,
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--primary);
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease;
}

button:hover,
.primary:hover,
.btn:hover{
  text-decoration: none;
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
}

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

button.secondary:hover,
.btn.secondary:hover{
  background: var(--primary-soft);
  border-color: var(--primary);
}

/* Utility */
.small{
  font-size: 14px;
}

.muted{
  color: var(--text-soft);
}

.grid-2{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

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

/* Footer */
footer.container{
  padding-bottom: 28px;
}

footer.container footer{
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
}

.footer-links{
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.footer-links a{
  color: var(--primary);
}

.cookie-text{
  margin-top: 8px;
}

/* Responsive */
@media (max-width: 900px){
  .grid-2,
  .grid-3{
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px){
  .container{
    width: min(var(--container), calc(100% - 20px));
  }

  .page{
    padding-top: 16px;
  }

  .header-inner{
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .brand{
    justify-content: center;
  }

  .header nav{
    justify-content: center;
    gap: 8px;
  }

  .header nav a{
    font-size: 13px;
    padding: 7px 9px;
  }

  .card{
    padding: 16px;
  }
}