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

:root {
  --bg-dark: #050712;
  --bg-darker: #02030a;
  --bg-accent: linear-gradient(135deg, #6b0fff, #ff3b6a, #ffb347);
  --text-main: #f7f7ff;
  --text-muted: #c0c4d8;
  --accent: #ffb347;
  --accent-strong: #ff3b6a;
  --border-subtle: rgba(255,255,255,0.08);
  --shadow-soft: 0 18px 40px rgba(0,0,0,0.55);
  --radius-lg: 18px;
  --radius-xl: 26px;
  --transition-fast: 0.2s ease-out;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, "YuGothic", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--text-main);
  background: radial-gradient(circle at top, #1a1040, #050712 60%);
  line-height: 1.7;
}

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

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

.container {
  width: min(1120px, 94%);
  margin: 0 auto;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background: linear-gradient(to bottom, rgba(5,7,18,0.96), rgba(5,7,18,0.82), transparent);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0 6px;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 40%;
  background: radial-gradient(circle at 20% 0%, #ffe28a, #ff3b6a 45%, #2b1b60 90%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #12060b;
  box-shadow: 0 10px 24px rgba(0,0,0,0.55);
}

.logo-text {
  display: flex;
  flex-direction: column;
  font-size: 12px;
}

.logo-main {
  font-size: 16px;
  letter-spacing: 0.12em;
}

.logo-sub {
  opacity: 0.7;
}

/* Navigation */
.nav {
  position: relative;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 20px;
  font-size: 13px;
  padding: 0;
  margin: 0;
}

.nav-list a {
  padding: 6px 4px;
  position: relative;
}

.nav-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ffe28a, #ff3b6a);
  transition: width var(--transition-fast);
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-contact {
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 193, 112, 0.8);
  box-shadow: 0 0 0 1px rgba(0,0,0,0.3);
}

/* Hamburger */
.nav-toggle {
  display: none;
  width: 40px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.28);
  background: rgba(5,7,18,0.6);
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
}

/* Hero */
.hero {
  position: relative;
  min-height: 90vh;
  padding-top: 86px;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  filter: saturate(1.3);
  opacity: 0;
  transition: opacity 1s ease-in-out;
}

.hero-bg-1 {
  background-image: url("assets/images/event_crowd_1.jpg");
}
.hero-bg-2 {
  background-image: url("assets/images/event_crowd_2.jpg");
}
.hero-bg-3 {
  background-image: url("assets/images/event_stage_award.jpg");
}

.hero-bg.is-active {
  opacity: 1;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top, rgba(120,64,255,0.6), transparent 55%),
    linear-gradient(to bottom, rgba(0,0,0,0.75), rgba(0,0,0,0.9));
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 0 80px;
}

.hero-kicker {
  letter-spacing: 0.28em;
  text-transform: uppercase;
  font-size: 11px;
  color: #ffdf9d;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(30px, 4.2vw, 42px);
  line-height: 1.4;
  margin: 0 0 18px;
  text-shadow: 0 12px 32px rgba(0,0,0,0.7);
}

.hero-lead {
  font-size: 14px;
  max-width: 640px;
  color: var(--text-muted);
  margin-bottom: 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 13px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease-out, box-shadow 0.2s ease-out, background 0.2s ease-out;
  white-space: nowrap;
}

.btn-primary {
  background-image: linear-gradient(135deg, #ffb347, #ff3b6a);
  color: #12060b;
  box-shadow: 0 14px 30px rgba(0,0,0,0.65);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(0,0,0,0.8);
}

.btn-ghost {
  border: 1px solid rgba(255,255,255,0.65);
  background: rgba(3,6,19,0.5);
  color: #fff;
}

.btn-ghost:hover {
  background: rgba(3,6,19,0.9);
}

.btn-full {
  width: 100%;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-dark {
  background: radial-gradient(circle at top, #161232, #02030a 60%);
}

.section-accent {
  background: radial-gradient(circle at top left, #ffb347, #ff3b6a 45%, #050712 90%);
}

.section-title {
  font-size: 24px;
  margin: 0 0 18px;
}

.section-title.center {
  text-align: center;
}

.center {
  text-align: center;
}

/* Layouts */
.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.section-text p {
  font-size: 14px;
  color: var(--text-muted);
}

.section-text p + p {
  margin-top: 10px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  font-size: 14px;
  color: var(--text-muted);
}

.check-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 6px;
}

.check-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent);
  font-size: 11px;
}

.section-media .photo-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255,255,255,0.12);
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 30px;
}

.card {
  padding: 20px 20px 18px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(255,255,255,0.06), rgba(9,10,25,0.96));
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
  font-size: 13px;
  color: var(--text-muted);
}

.card h3 {
  font-size: 16px;
  margin: 0 0 10px;
  color: #fff;
}

/* Service */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 20px;
}

.service-item {
  padding: 18px 18px 16px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top right, rgba(255,179,71,0.18), rgba(8,10,25,0.96));
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 13px;
  color: var(--text-muted);
}

.service-item h3 {
  font-size: 16px;
  margin-top: 0;
  margin-bottom: 8px;
  color: #fff;
}

/* Scenes */
.scene-area {
  margin-top: 40px;
}

.scene-title {
  font-size: 18px;
  margin-bottom: 16px;
}

.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.scene-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: var(--shadow-soft);
}

.scene-card img {
  height: 180px;
  object-fit: cover;
}

.scene-card figcaption {
  padding: 10px 12px 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* Flow */
.flow-list {
  list-style: none;
  padding: 0;
  margin: 26px auto 0;
  max-width: 760px;
  counter-reset: flow;
}

.flow-list li {
  position: relative;
  padding: 18px 18px 16px 56px;
  margin-bottom: 14px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(255,255,255,0.07), rgba(8,10,25,0.96));
  border: 1px solid var(--border-subtle);
  font-size: 13px;
  color: var(--text-muted);
}

.flow-list li::before {
  counter-increment: flow;
  content: counter(flow);
  position: absolute;
  left: 16px;
  top: 18px;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffb347, #ff3b6a);
  color: #12060b;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
}

.flow-list h3 {
  margin: 0 0 6px;
  font-size: 15px;
  color: #fff;
}

/* Price */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 26px;
}

.price-card {
  padding: 20px 20px 18px;
  border-radius: var(--radius-xl);
  background: radial-gradient(circle at top left, rgba(255,255,255,0.07), rgba(8,10,25,0.98));
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: var(--shadow-soft);
  font-size: 13px;
  color: var(--text-muted);
}

.price-card-main {
  background: radial-gradient(circle at top, rgba(255,179,71,0.24), rgba(8,10,25,0.98));
  border-color: rgba(255,179,71,0.55);
}

.price-card h3 {
  margin: 0 0 8px;
  color: #fff;
}

.price {
  font-size: 13px;
  margin-bottom: 10px;
}

.price span {
  font-size: 20px;
  font-weight: 700;
  margin: 0 4px;
}

/* FAQ */
.faq-list {
  margin-top: 24px;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.faq-list details {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: radial-gradient(circle at top left, rgba(255,255,255,0.06), rgba(8,10,25,0.96));
  padding: 12px 16px;
  margin-bottom: 10px;
  font-size: 13px;
  cursor: pointer;
}

.faq-list summary {
  list-style: none;
  position: relative;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "＋";
  position: absolute;
  right: 0;
  top: 0;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list p {
  margin-top: 8px;
  color: var(--text-muted);
}

/* Contact */
.contact-container {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: flex-start;
}

.contact-text p {
  font-size: 14px;
  color: #241014;
}

.contact-info p {
  margin: 4px 0;
}

.contact-info a {
  text-decoration: underline;
}

.contact-form-wrapper {
  background: rgba(5,7,18,0.9);
  border-radius: var(--radius-xl);
  padding: 22px 22px 20px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255,255,255,0.18);
}

.contact-form .form-row {
  margin-bottom: 12px;
}

.contact-form label {
  display: block;
  font-size: 12px;
  margin-bottom: 4px;
}

.req {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 4px;
  font-size: 10px;
  border-radius: 999px;
  background: #ff3b6a;
  color: #fff;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(5,7,18,0.8);
  color: #fff;
  font-size: 13px;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(255,179,71,0.8);
  box-shadow: 0 0 0 1px rgba(255,179,71,0.5);
}

.form-note {
  font-size: 11px;
  color: var(--text-muted);
  margin: 6px 0 10px;
}

/* Footer */
.site-footer {
  padding: 30px 0 24px;
  background: #020309;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-inner {
  text-align: center;
  font-size: 11px;
  color: #8085a0;
}

.footer-logo {
  font-size: 14px;
  margin-bottom: 4px;
  letter-spacing: 0.16em;
}

.footer-info {
  margin: 0 0 4px;
}

/* Utility */
.sp-only {
  display: none;
}

/* Responsive */
@media (max-width: 900px) {
  .nav-list {
    position: absolute;
    right: 0;
    top: 38px;
    flex-direction: column;
    background: rgba(5,7,18,0.97);
    padding: 12px 16px;
    border-radius: 14px;
    min-width: 210px;
    box-shadow: var(--shadow-soft);
    transform-origin: top right;
    transform: scale(0.9);
    opacity: 0;
    pointer-events: none;
  }

  .nav-list.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: scale(1);
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    min-height: 92vh;
  }

  .hero-content {
    padding-top: 40px;
  }

  .hero-lead {
    font-size: 13px;
  }

  .two-column,
  .card-grid,
  .service-grid,
  .scene-grid,
  .price-grid,
  .contact-container {
    grid-template-columns: minmax(0, 1fr);
  }

  .scene-card img {
    height: 200px;
  }

  .sp-only {
    display: inline;
  }
}

@media (max-width: 600px) {
  .hero h1 {
    font-size: 26px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .section {
    padding: 64px 0;
  }

  .flow-list li {
    padding-left: 52px;
  }

  .hero {
    padding-top: 78px;
  }
}


/* --- User request: 文字枠は丸みがない四角に統一 --- */
.card,
.service-item,
.scene-card,
.flow-list li,
.price-card,
.faq-list details,
.contact-form-wrapper,
.section-media .photo-card,
.contact-form input,
.contact-form textarea {
  border-radius: 0;
}