:root {
  --color-primary: #007fff;
  --color-primary-dark: #0062c7;
  --color-accent: #ff4b80;
  --color-accent-dark: #e23568;
  --color-ink: #0d1b2a;
  --color-ink-soft: #4a5a6a;
  --color-muted: #8896a5;
  --color-line: #e5ecf3;
  --color-surface: #ffffff;
  --color-surface-tinted: #f4f8ff;
  --color-bg: #ffffff;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 8px rgba(13, 27, 42, 0.04);
  --shadow-md: 0 10px 30px rgba(13, 27, 42, 0.08);
  --shadow-lg: 0 20px 60px rgba(0, 127, 255, 0.18);

  --font-jp: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;

  --container: 1120px;
  --container-narrow: 760px;
  --header-h: 72px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-jp);
  font-weight: 400;
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

h1, h2, h3 { line-height: 1.3; margin: 0; font-weight: 700; letter-spacing: 0.01em; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 40px);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-weight: 700;
  font-family: inherit;
  font-size: 15px;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}
.btn-sm { padding: 10px 20px; font-size: 14px; }
.btn-lg { padding: 18px 36px; font-size: 16px; }

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 12px 28px rgba(255, 75, 128, 0.35);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(255, 75, 128, 0.4);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid rgba(229, 236, 243, 0.6);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 24px;
}
.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  color: var(--color-primary);
  font-family: var(--font-jp);
  font-weight: 900;
  letter-spacing: 0.04em;
}
.logo-en {
  font-size: 22px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.logo-jp {
  font-size: 17px;
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  font-weight: 500;
}
.site-nav a {
  position: relative;
  color: var(--color-ink-soft);
  transition: color 0.2s ease;
}
.site-nav a:hover { color: var(--color-primary); }

@media (max-width: 880px) {
  .site-nav { display: none; }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(80px, 12vw, 140px);
  color: #fff;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 50% at 15% 20%, rgba(255, 75, 128, 0.55) 0%, transparent 60%),
    radial-gradient(50% 60% at 85% 75%, rgba(0, 200, 255, 0.45) 0%, transparent 60%),
    linear-gradient(135deg, #003a8c 0%, #007fff 50%, #4a36d6 100%);
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.hero-inner { max-width: 900px; }
.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  padding: 6px 14px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-pill);
  margin-bottom: 28px;
  text-transform: uppercase;
}
.hero-title {
  font-size: clamp(36px, 6.5vw, 72px);
  font-weight: 900;
  letter-spacing: 0.01em;
  margin-bottom: 28px;
}
.text-gradient {
  background: linear-gradient(90deg, #ffd6e2 0%, #ff4b80 50%, #ffaf7c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: clamp(15px, 1.7vw, 18px);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 40px;
  max-width: 600px;
}
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 64px;
}
.hero-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin: 0;
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
}
.hero-meta dt {
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.hero-meta dd {
  margin: 0;
  font-size: clamp(16px, 2vw, 20px);
  font-weight: 700;
}

@media (max-width: 640px) {
  .hero-meta { grid-template-columns: repeat(2, 1fr); }
}

/* ========== Sections ========== */
.section {
  padding-block: clamp(72px, 10vw, 120px);
}
.section-tinted { background: var(--color-surface-tinted); }
.section-inner { width: 100%; }
.section-narrow { max-width: var(--container-narrow); margin-inline: auto; }

.section-head {
  text-align: center;
  margin-bottom: clamp(40px, 6vw, 64px);
}
.section-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  margin-bottom: 20px;
}
.section-lead {
  color: var(--color-ink-soft);
  font-size: clamp(14px, 1.5vw, 16px);
}

/* ========== Concept ========== */
.concept-body {
  text-align: center;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 2.1;
  color: var(--color-ink);
}
.concept-body p + p { margin-top: 28px; }
.brand-name {
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.sp-only { display: none; }
@media (max-width: 640px) {
  .sp-only { display: inline; }
}

/* ========== Sub theme ========== */
.subtheme-card {
  padding: clamp(32px, 5vw, 56px);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.subtheme-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(40% 60% at 100% 0%, rgba(255, 75, 128, 0.08), transparent 60%),
    radial-gradient(40% 60% at 0% 100%, rgba(0, 127, 255, 0.08), transparent 60%);
  pointer-events: none;
}
.subtheme-card > * { position: relative; }
.subtheme-tagline {
  font-size: clamp(18px, 2.4vw, 24px);
  font-weight: 700;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 28px;
  letter-spacing: 0.02em;
}
.subtheme-body {
  font-size: 15px;
  line-height: 2;
  color: var(--color-ink-soft);
}
.subtheme-body + .subtheme-body { margin-top: 20px; }
.subtheme-note {
  margin-top: 28px;
  font-size: 11px;
  color: var(--color-muted);
  letter-spacing: 0.05em;
}

/* ========== Benefits ========== */
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.benefit-card {
  position: relative;
  padding: 40px 32px 32px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.benefit-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.benefit-number {
  font-family: "Noto Sans JP", system-ui, sans-serif;
  font-size: 36px;
  font-weight: 900;
  letter-spacing: 0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-primary);
  margin-bottom: 12px;
}
.benefit-card h3 { font-size: 18px; margin-bottom: 12px; }
.benefit-card p { color: var(--color-ink-soft); font-size: 14.5px; line-height: 1.9; }
.benefit-card p strong {
  color: var(--color-accent);
  font-weight: 900;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .benefits-grid { grid-template-columns: 1fr; }
}

/* ========== Categories ========== */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.category-card {
  position: relative;
  padding: 40px 28px 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.category-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: #fff;
  padding: 6px 16px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.category-card h3 {
  font-size: 19px;
  margin-bottom: 12px;
}
.category-card > p {
  color: var(--color-ink-soft);
  font-size: 14.5px;
  line-height: 1.9;
}
.category-notes {
  list-style: none;
  margin: 36px 0 0;
  padding: 24px 28px;
  background: var(--color-surface-tinted);
  border-radius: var(--radius-md);
  display: grid;
  gap: 10px;
}
.category-notes li {
  font-size: 13px;
  color: var(--color-ink-soft);
  line-height: 1.85;
  display: grid;
  grid-template-columns: 36px 1fr;
  align-items: baseline;
}
.category-notes li span {
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 0.05em;
}

@media (max-width: 1024px) {
  .category-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .category-grid { grid-template-columns: 1fr; }
}

/* ========== Booth types ========== */
.booth-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.booth-card {
  position: relative;
  padding: 40px 28px 36px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.booth-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.booth-card-featured {
  background: linear-gradient(180deg, #fff 0%, #f6faff 100%);
  border-color: rgba(0, 127, 255, 0.3);
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
}
.booth-card-featured:hover { transform: translateY(-10px); }
.booth-card-featured::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.booth-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--color-primary);
  padding: 6px 14px;
  border: 1px solid currentColor;
  border-radius: var(--radius-pill);
  margin-bottom: 18px;
}
.booth-card-featured .booth-tag {
  color: #fff;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-color: transparent;
}
.booth-card h3 {
  font-size: 18px;
  margin-bottom: 16px;
  color: var(--color-ink);
}
.booth-price {
  font-size: clamp(36px, 5vw, 48px);
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  margin-bottom: 16px;
  line-height: 1;
}
.booth-currency {
  font-size: 0.55em;
  font-weight: 700;
  color: var(--color-primary);
  margin-right: 4px;
  vertical-align: 0.2em;
}
.booth-desc {
  color: var(--color-ink-soft);
  font-size: 14px;
  line-height: 1.8;
}

@media (max-width: 880px) {
  .booth-grid { grid-template-columns: 1fr; gap: 20px; }
  .booth-card-featured { transform: none; }
  .booth-card-featured:hover { transform: translateY(-4px); }
}

/* ========== Overview table ========== */
.overview-table {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}
.overview-row {
  display: grid;
  grid-template-columns: 200px 1fr;
}
.overview-row + .overview-row { border-top: 1px solid var(--color-line); }
.overview-key {
  padding: 20px 28px;
  background: var(--color-surface-tinted);
  font-weight: 700;
  color: var(--color-primary);
  font-size: 14px;
  letter-spacing: 0.04em;
}
.overview-val {
  padding: 20px 28px;
  color: var(--color-ink);
  font-size: 15px;
  line-height: 1.85;
}
.overview-sub {
  display: inline-block;
  font-size: 13px;
  color: var(--color-ink-soft);
  margin-top: 4px;
}
.overview-note {
  font-size: 12px;
  color: var(--color-muted);
  margin-left: 8px;
}

@media (max-width: 640px) {
  .overview-row { grid-template-columns: 1fr; }
  .overview-key { padding: 14px 20px; }
  .overview-val { padding: 14px 20px 18px; }
}

/* ========== Cancel policy ========== */
.cancel-table {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.cancel-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  align-items: stretch;
}
.cancel-row + .cancel-row { border-top: 1px solid var(--color-line); }
.cancel-when {
  padding: 24px 28px;
  background: var(--color-surface-tinted);
  display: flex;
  align-items: center;
}
.cancel-when-label {
  font-weight: 700;
  font-size: 14px;
  color: var(--color-primary);
  line-height: 1.6;
}
.cancel-when-label small {
  display: block;
  font-size: 11px;
  color: var(--color-ink-soft);
  font-weight: 500;
  margin-top: 4px;
  letter-spacing: 0;
}
.cancel-rule { padding: 24px 28px; }
.cancel-rule-main {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.6;
}
.cancel-rule-main strong {
  color: var(--color-accent);
  font-size: 22px;
  margin: 0 2px;
}
.cancel-rule-sub {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--color-muted);
}
.cancel-row-strict .cancel-when {
  background: linear-gradient(135deg, rgba(255, 75, 128, 0.08), rgba(255, 75, 128, 0.02));
}
.cancel-row-strict .cancel-when-label { color: var(--color-accent); }

@media (max-width: 640px) {
  .cancel-row { grid-template-columns: 1fr; }
  .cancel-when { padding: 16px 22px; }
  .cancel-rule { padding: 16px 22px 20px; }
}

/* ========== Flow ========== */
.flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: flow;
}
.flow-item {
  position: relative;
  padding: 32px 24px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.flow-step {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.flow-item h3 { font-size: 17px; margin-bottom: 10px; }
.flow-item p { color: var(--color-ink-soft); font-size: 14px; }

@media (max-width: 880px) {
  .flow-list { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .flow-list { grid-template-columns: 1fr; }
}

/* ========== FAQ ========== */
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 4px 4px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.faq-item[open] {
  border-color: rgba(0, 127, 255, 0.4);
  box-shadow: var(--shadow-sm);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 700;
  font-size: 15.5px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 22px;
  color: var(--color-primary);
  font-weight: 400;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item p {
  padding: 0 22px 20px;
  color: var(--color-ink-soft);
  font-size: 14.5px;
}

/* ========== Apply / Form ========== */
.section-apply {
  background: linear-gradient(180deg, var(--color-surface-tinted) 0%, #fff 100%);
}
.form-embed {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.form-embed iframe {
  display: block;
  width: 100%;
  border: 0;
}

/* ========== Reel embed ========== */
.reel-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.reel-frame {
  width: 100%;
  max-width: 400px;
  aspect-ratio: 9 / 16;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  background: #000;
}
.reel-frame iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.reel-caption {
  font-size: 13px;
  color: var(--color-ink-soft);
  letter-spacing: 0.04em;
}
.reel-caption a {
  color: var(--color-primary);
  font-weight: 700;
  border-bottom: 1px solid currentColor;
}

/* ========== Footer ========== */
.site-footer {
  padding-block: 40px;
  background: var(--color-ink);
  color: rgba(255, 255, 255, 0.75);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-weight: 900;
  color: #fff;
  font-family: var(--font-jp);
}
.footer-brand .logo-en {
  font-size: 20px;
  letter-spacing: 0.12em;
}
.footer-brand .logo-jp {
  font-size: 15px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.85);
}
.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
}
.footer-org {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.04em;
}
.footer-org span { font-weight: 700; color: #fff; }
.footer-copy {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 640px) {
  .footer-meta { align-items: flex-start; }
}