:root {
  --miami: #00b4e4;
  --miami-dim: #0090b8;
  --miami-glow: rgba(0, 180, 228, 0.45);
  --black: #060608;
  --charcoal: #0f1014;
  --graphite: #1a1c22;
  --slate: #2a2d36;
  --white: #f4f6f8;
  --muted: #9aa3b0;
  --yellow: #f5c518;
  --yellow-hover: #ffe04a;
  --red: #e63946;
  --font-display: "Orbitron", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", system-ui, sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* Carbon fiber texture overlay */
.carbon-bg {
  background-color: var(--charcoal);
  background-image:
    linear-gradient(27deg, transparent 48%, rgba(255, 255, 255, 0.02) 49%, rgba(255, 255, 255, 0.02) 51%, transparent 52%),
    linear-gradient(207deg, transparent 48%, rgba(255, 255, 255, 0.02) 49%, rgba(255, 255, 255, 0.02) 51%, transparent 52%);
  background-size: 8px 8px;
}

/* Speed lines */
.speed-lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  opacity: 0.15;
}

.speed-lines::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -20%;
  width: 140%;
  height: 200%;
  background: repeating-linear-gradient(
    -12deg,
    transparent,
    transparent 40px,
    var(--miami) 40px,
    transparent 41px
  );
  animation: speed-drift 8s linear infinite;
}

@keyframes speed-drift {
  from { transform: translateX(0); }
  to { transform: translateX(80px); }
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: linear-gradient(180deg, rgba(6, 6, 8, 0.95) 0%, transparent 100%);
  transition: background 0.4s var(--ease-out), backdrop-filter 0.4s;
}

.site-header.scrolled {
  background: rgba(6, 6, 8, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0, 180, 228, 0.15);
}

.site-header.menu-open {
  background: #060608;
  backdrop-filter: none;
  border-bottom: 1px solid var(--slate);
}

.header {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  min-width: 0;
  background: none;
  padding: 0;
}

@media (min-width: 901px) {
  .site-header {
    left: 50%;
    right: auto;
    width: 100%;
    max-width: 1280px;
    transform: translateX(-50%);
    padding-left: 2rem;
    padding-right: 2rem;
  }

  .nav {
    display: flex !important;
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
    transform: none;
    visibility: visible;
    overflow: visible;
    flex-direction: row;
    align-items: center;
    margin-left: auto;
  }

  .nav a {
    align-items: center;
  }
}

body.nav-open {
  overflow: hidden;
}

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: #060608;
  opacity: 0.92;
}

.nav-backdrop.is-visible {
  display: block;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.2em;
  color: var(--miami);
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.25s;
  position: relative;
  padding: 0.25rem 0;
}

.nav a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--miami);
  transition: width 0.3s var(--ease-out);
}

.nav a:not(.nav-cta):hover::after {
  width: 100%;
}

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

.nav a:hover .nav-en {
  color: var(--miami);
}

.nav-en {
  font-family: "Barlow Condensed", "Orbitron", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1;
  transition: color 0.25s;
}

.nav-ja {
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  opacity: 0.55;
  line-height: 1;
}

.nav-cta {
  padding: 0.6rem 3.25rem;
  min-width: 9.5rem;
  background: var(--yellow);
  border-radius: 2px;
  transition: background 0.25s, transform 0.25s, box-shadow 0.25s !important;
}

.nav-cta .nav-en {
  color: var(--black);
  font-size: 1rem;
  letter-spacing: 0.2em;
  padding: 0 0.15em;
}

.nav-cta .nav-ja {
  color: rgba(0, 0, 0, 0.55);
  opacity: 1;
}

.nav-cta:hover {
  background: var(--yellow-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(245, 197, 24, 0.3);
}

.nav-cta:hover .nav-en {
  color: var(--black);
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--black);
}

.hero-bg picture {
  display: block;
  width: 100%;
  height: 100%;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

/* スマホ：縦長写真で画面を埋める */
@media (max-width: 900px) {
  .hero-bg img {
    object-fit: cover;
    object-position: center bottom;
  }

  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(6, 6, 8, 0.98) 0%, rgba(6, 6, 8, 0.88) 28%, rgba(6, 6, 8, 0.5) 55%, rgba(6, 6, 8, 0.15) 78%),
      linear-gradient(180deg, rgba(6, 6, 8, 0.55) 0%, transparent 28%);
  }

  .hero-content {
    padding: 7rem 1.25rem 3.5rem;
  }
}

/* PC横長：走行写真の左右が切れないよう調整 */
@media (min-width: 901px) and (min-aspect-ratio: 16 / 10) {
  .hero-bg img {
    object-fit: contain;
    object-position: center bottom;
  }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(6, 6, 8, 0.92) 0%, rgba(6, 6, 8, 0.4) 45%, rgba(6, 6, 8, 0.2) 100%),
    linear-gradient(0deg, var(--black) 0%, transparent 35%);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 8rem 2rem 5rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  color: var(--miami);
  border: 1px solid var(--miami);
  padding: 0.35rem 1rem;
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fade-up 0.8s var(--ease-out) 0.2s forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  line-height: 1.05;
  font-style: italic;
  letter-spacing: -0.02em;
  opacity: 0;
  animation: fade-up 0.9s var(--ease-out) 0.35s forwards;
}

.hero-title span {
  display: block;
  color: var(--miami);
  text-shadow: 0 0 60px var(--miami-glow);
}

.hero-sub {
  margin-top: 1.25rem;
  font-size: 1.05rem;
  color: color-mix(in srgb, var(--muted) 55%, var(--white));
  max-width: 32rem;
  opacity: 0;
  animation: fade-up 0.9s var(--ease-out) 0.5s forwards;
}

.hero-actions {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  opacity: 0;
  animation: fade-up 0.9s var(--ease-out) 0.65s forwards;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(28px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}

.btn-primary {
  background: var(--yellow);
  color: var(--black);
}

.btn-primary:hover {
  background: var(--yellow-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(245, 197, 24, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--miami);
  color: var(--miami);
}

/* Section common */
section {
  position: relative;
  padding: 6rem 2rem;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--miami);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  font-style: italic;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--muted);
  max-width: 36rem;
  margin-bottom: 3rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Slanted divider */
.slant-top {
  clip-path: polygon(0 8%, 100% 0, 100% 100%, 0 100%);
  margin-top: -4rem;
  padding-top: 8rem;
}

/* Experience grid */
.experience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.experience-grid picture {
  display: block;
}

.experience-grid img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 2px;
  filter: brightness(0.85);
  transition: filter 0.4s, transform 0.5s var(--ease-out);
}

.experience-grid figure:hover img {
  filter: brightness(1);
  transform: scale(1.03);
}

.experience-grid figure {
  overflow: hidden;
  border-radius: 2px;
  position: relative;
}

.experience-grid figure:first-child {
  grid-column: span 2;
  grid-row: span 2;
}

.experience-grid figure:first-child picture {
  height: 100%;
}

.experience-grid figure:first-child img {
  aspect-ratio: auto;
  height: 100%;
  min-height: 320px;
}

/* Pricing */
.pricing {
  background: var(--charcoal);
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.pricing-card {
  position: relative;
  padding: 2.5rem 2rem;
  background: var(--graphite);
  border: 1px solid var(--slate);
  border-radius: 2px;
  overflow: hidden;
  transition: border-color 0.35s, transform 0.35s var(--ease-out);
}

.pricing-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--miami);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.pricing-card:hover {
  border-color: var(--miami);
  transform: translateY(-4px);
}

.pricing-card:hover::before {
  transform: scaleX(1);
}

.pricing-card.featured {
  border-color: rgba(0, 180, 228, 0.4);
  background: linear-gradient(145deg, var(--graphite) 0%, rgba(0, 180, 228, 0.08) 100%);
}

.pricing-duration {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.5rem 0.65rem;
  line-height: 1;
}

.pricing-hours {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 900;
  color: var(--miami);
  line-height: 0.9;
}

.pricing-hours small {
  font-size: 1.25rem;
  font-weight: 600;
}

.pricing-plan-tag {
  font-family: "Barlow Condensed", var(--font-display), sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
  color: var(--white);
  margin-bottom: 0.45rem;
  opacity: 0.9;
}

.pricing-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  margin: 1rem 0;
}

.pricing-price span {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  color: var(--muted);
  font-size: 0.9rem;
}

.pricing-features li {
  padding: 0.35rem 0;
  padding-left: 1.25rem;
  position: relative;
}

.pricing-features li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--miami);
}

.pricing-note {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  background: rgba(0, 180, 228, 0.08);
  border-left: 3px solid var(--miami);
  font-size: 0.9rem;
  color: var(--muted);
}

.pricing-note strong {
  color: var(--white);
}

/* Notice */
.notice-box {
  background: var(--graphite);
  border: 1px solid rgba(230, 57, 70, 0.35);
  border-radius: 2px;
  padding: 2rem;
  position: relative;
}

.notice-box::before {
  content: "注意";
  position: absolute;
  top: -0.65rem;
  left: 1.5rem;
  background: var(--red);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  padding: 0.2rem 0.75rem;
}

.notice-list {
  list-style: none;
  margin-top: 0.5rem;
}

.notice-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--slate);
  color: var(--muted);
  font-size: 0.95rem;
  padding-left: 1.5rem;
  position: relative;
}

.notice-list li:last-child {
  border-bottom: none;
}

.notice-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.15rem;
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
}

.notice-list li strong {
  color: var(--white);
  display: block;
  margin-bottom: 0.15rem;
}

/* Videos */
.video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.video-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 2px;
  border: 1px solid var(--slate);
  background: var(--graphite);
  transition: border-color 0.35s, box-shadow 0.35s;
}

.video-wrap:hover {
  border-color: var(--miami);
  box-shadow: 0 0 40px var(--miami-glow);
}

.video-wrap iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--graphite);
  overflow: hidden;
}

.video-fallback img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: opacity 0.3s, transform 0.4s var(--ease-out);
}

.video-fallback:hover img {
  opacity: 1;
  transform: scale(1.03);
}

.video-play-btn {
  position: absolute;
  width: 4rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(245, 197, 24, 0.95);
  color: var(--black);
  font-size: 1.25rem;
  border-radius: 50%;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  pointer-events: none;
}

.video-fallback-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.75rem;
  background: linear-gradient(transparent, rgba(6, 6, 8, 0.9));
  font-size: 0.8rem;
  font-weight: 700;
  text-align: center;
}

.video-fallback-hint {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2.25rem;
  font-size: 0.7rem;
  color: var(--muted);
  text-align: center;
}

.video-grid {
  margin-bottom: 2.5rem;
}

/* Form */
.contact {
  background: var(--charcoal);
}

.contact-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 2rem;
}

.contact-visual {
  position: relative;
  flex: 0 0 auto;
  width: min(36%, 340px);
  border-radius: 2px;
  overflow: hidden;
}

.contact-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}

.contact-visual picture {
  display: block;
  width: 100%;
  height: 100%;
}

.contact-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, var(--charcoal) 0%, transparent 40%);
  pointer-events: none;
}

.contact-form-box {
  flex: 1 1 320px;
  min-width: 0;
  background: var(--graphite);
  border: 1px solid var(--slate);
  padding: 2rem 2.25rem;
  border-radius: 2px;
}

.contact-form-box h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.contact-form-box > p {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.form-group label .required {
  color: var(--miami);
  margin-left: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--charcoal);
  border: 1px solid var(--slate);
  border-radius: 2px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--miami);
  box-shadow: 0 0 0 3px var(--miami-glow);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  margin-top: 0.5rem;
}

.form-hint {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.botcheck {
  display: none !important;
}

.form-error {
  margin-bottom: 1rem;
  padding: 0.75rem 1rem;
  font-size: 0.85rem;
  color: #ffb4b4;
  background: rgba(230, 57, 70, 0.12);
  border: 1px solid rgba(230, 57, 70, 0.35);
  border-radius: 2px;
}

.form-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
}

.form-success.active {
  display: block;
}

.form-success h4 {
  color: var(--miami);
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

/* Footer */
.footer {
  padding: 2rem;
  text-align: center;
  font-size: 0.75rem;
  color: var(--muted);
  border-top: 1px solid var(--slate);
}

/* Parallax strip */
.parallax-strip {
  height: 40vh;
  min-height: 280px;
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  position: relative;
}

.parallax-strip::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(6, 6, 8, 0.55);
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  position: relative;
  z-index: 102;
  padding: 0.35rem;
  min-width: 2.5rem;
  min-height: 2.5rem;
}

@media (max-width: 900px) {
  .site-header {
    background: #060608;
    z-index: 103;
  }

  .header {
    flex: 1 1 auto;
    width: 100%;
    justify-content: space-between;
  }

  .nav {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 101;
    width: min(300px, 88vw);
    flex-direction: column;
    align-items: flex-start;
    padding: 5.5rem 2rem 2rem;
    background-color: #0f1014;
    background-image: none;
    border-left: 1px solid var(--slate);
    box-shadow: -12px 0 40px rgba(0, 0, 0, 0.65);
    gap: 1.5rem;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    isolation: isolate;
    transform: translateX(100%);
    transition: transform 0.35s var(--ease-out);
    visibility: hidden;
  }

  .nav.open {
    display: flex;
    visibility: visible;
    transform: translateX(0);
  }

  .nav a {
    align-items: flex-start;
  }

  .nav-en {
    font-size: 1.1rem;
  }

  .menu-toggle {
    display: block;
  }

  .logo {
    position: relative;
    z-index: 1;
  }

  .experience-grid {
    grid-template-columns: 1fr 1fr;
  }

  .experience-grid figure:first-child {
    grid-column: span 2;
    grid-row: span 1;
  }

  .pricing-cards,
  .video-grid {
    grid-template-columns: 1fr;
  }

  .contact-wrapper {
    flex-direction: column;
  }

  .contact-visual {
    width: 100%;
    max-width: none;
    height: auto !important;
    aspect-ratio: 16 / 10;
    max-height: none;
  }

  .contact-visual::after {
    display: none;
  }

  .contact-visual img {
    object-position: center center;
  }

  .contact-form-box h3 {
    font-size: 1.15rem;
    line-height: 1.5;
  }

  .parallax-strip {
    background-attachment: scroll;
  }
}

@media (max-width: 600px) {
  .header {
    padding: 1rem;
  }

  section {
    padding: 4rem 1.25rem;
  }

  .hero-content {
    padding: 7rem 1.25rem 4rem;
  }

  .experience-grid {
    grid-template-columns: 1fr;
  }

  .experience-grid figure:first-child {
    grid-column: span 1;
  }
}