:root {
  --ink: #0b1f3a;
  --ink-soft: #1a3354;
  --paper: #f7f4ef;
  --paper-2: #ebe6dc;
  --gold: #b8893d;
  --gold-deep: #8f6a2c;
  --line: rgba(11, 31, 58, 0.12);
  --muted: #5a6678;
  --white: #ffffff;
  --shadow: 0 18px 50px rgba(11, 31, 58, 0.12);
  --radius: 14px;
  --font-sans: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-display: "Shippori Mincho", "Hiragino Mincho ProN", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(184, 137, 61, 0.14), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(26, 51, 84, 0.08), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  line-height: 1.7;
  min-height: 100vh;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1120px, calc(100% - 2.5rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  background: rgba(247, 244, 239, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: inherit;
  text-decoration: none;
}

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

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(145deg, var(--ink) 0%, var(--ink-soft) 100%);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  box-shadow: 0 8px 20px rgba(11, 31, 58, 0.25);
}

.logo-mark svg {
  width: 22px;
  height: 22px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

.logo-tag {
  font-size: 0.7rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav a {
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
  text-decoration: none;
}

.nav a:hover {
  color: var(--gold-deep);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 0.85rem 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-soft) 100%);
  color: var(--white);
  box-shadow: 0 10px 28px rgba(11, 31, 58, 0.28);
}

.btn-primary:hover {
  box-shadow: 0 14px 32px rgba(11, 31, 58, 0.35);
  color: var(--white);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-deep) 100%);
  color: var(--white);
  box-shadow: 0 10px 28px rgba(143, 106, 44, 0.28);
}

.btn-gold:hover {
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

/* Hero */
.hero {
  padding: 4.5rem 0 3.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 8% -10% auto auto;
  width: min(520px, 70vw);
  height: min(520px, 70vw);
  background:
    linear-gradient(160deg, rgba(11, 31, 58, 0.92), rgba(26, 51, 84, 0.75)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Cpath fill='none' stroke='rgba(184,137,61,0.25)' stroke-width='1' d='M0 40h80M40 0v80'/%3E%3C/svg%3E");
  border-radius: 40% 60% 55% 45%;
  opacity: 0.95;
  z-index: 0;
  animation: drift 18s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate(0, 0) rotate(0deg); }
  to { transform: translate(-18px, 22px) rotate(4deg); }
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--gold-deep);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  line-height: 1.35;
  margin: 0 0 1rem;
  font-weight: 700;
}

.hero-lead {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 36rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.trust-row span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.trust-row i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  display: inline-block;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  animation: rise 0.9s ease both;
}

@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-panel h2 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}

.hero-panel p {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.stat-list li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.stat-list strong {
  color: var(--gold-deep);
  font-family: var(--font-display);
}

/* Sections shared */
.section {
  padding: 4rem 0;
}

.section-head {
  max-width: 40rem;
  margin-bottom: 2.25rem;
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

/* Block 2: services */
.services {
  background: rgba(255, 255, 255, 0.45);
  border-block: 1px solid var(--line);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.service {
  padding: 1.5rem 1.35rem;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.service:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.service-num {
  font-family: var(--font-display);
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  margin-bottom: 0.6rem;
}

.service h3 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  font-family: var(--font-display);
}

.service p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Block 3: registration */
.register {
  padding-bottom: 5rem;
}

.register-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 2rem;
  align-items: start;
}

.reg-copy ul {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
}

.reg-copy li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.reg-copy li::before {
  content: "";
  width: 10px;
  height: 10px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 4px rgba(184, 137, 61, 0.18);
}

.form-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 2px);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.form-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
}

.form-card > p {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.form-grid {
  display: grid;
  gap: 0.9rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.9rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-soft);
}

input,
select,
textarea {
  width: 100%;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
  background: var(--paper);
  color: var(--ink);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: rgba(184, 137, 61, 0.7);
  box-shadow: 0 0 0 3px rgba(184, 137, 61, 0.18);
  background: var(--white);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--muted);
}

.check input {
  width: auto;
  margin-top: 0.2rem;
}

.form-note {
  margin: 0.85rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.form-success {
  display: none;
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 10px;
  background: rgba(34, 120, 80, 0.1);
  color: #1f5c3f;
  font-size: 0.9rem;
}

.form-success.show {
  display: block;
  animation: rise 0.4s ease both;
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.78);
  padding: 2.5rem 0 2rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-brand .logo-name {
  color: var(--white);
}

.footer-brand .logo-tag {
  color: rgba(255, 255, 255, 0.55);
}

.footer-meta {
  font-size: 0.85rem;
  max-width: 28rem;
}

.footer-meta p {
  margin: 0.35rem 0;
}

.footer-bottom {
  margin-top: 1.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 80;
  max-width: 720px;
  margin-inline: auto;
  background: var(--ink);
  color: rgba(255, 255, 255, 0.88);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  display: none;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  animation: rise 0.45s ease both;
}

.cookie-banner.show {
  display: flex;
}

.cookie-banner p {
  margin: 0;
  font-size: 0.88rem;
  flex: 1 1 280px;
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.cookie-actions .btn {
  padding: 0.65rem 1.1rem;
  font-size: 0.85rem;
}

.btn-light {
  background: var(--white);
  color: var(--ink);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

@media (max-width: 900px) {
  .hero-grid,
  .service-grid,
  .register-grid {
    grid-template-columns: 1fr;
  }

  .hero::before {
    opacity: 0.35;
    inset: auto -20% -30% auto;
  }

  .nav a:not(.btn) {
    display: none;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}