/* ミルアイル — THE ROJI / 路地 — Dark Theme */
:root {
  --sumi: #0B0D10;
  --ai: #16202E;
  --kinari: #F3EEE4;
  --akari: #F0B429;
  --nibi: #8A8F98;
  --font-mincho: "Zen Old Mincho", "Yu Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-mono: "Roboto Mono", monospace;
  --line-height: 1.85;
  --transition: 0.35s ease;
  --max-width: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  line-height: var(--line-height);
  font-feature-settings: "palt";
  text-align: left;
  background: var(--sumi);
  color: var(--kinari);
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: var(--akari);
  text-decoration: none;
  transition: color var(--transition), opacity var(--transition);
}

a:hover, a:focus-visible {
  color: #ffd86a;
  outline: 2px solid var(--akari);
  outline-offset: 2px;
}

h1, h2, h3 {
  font-family: var(--font-mincho);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.375rem, 3vw, 2rem); margin-bottom: 1.25rem; }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); margin-bottom: 0.75rem; }

p, li {
  margin-bottom: 1rem;
  max-width: 72ch;
}

ul, ol { padding-left: 1.5rem; margin-bottom: 1rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--akari);
  margin-bottom: 0.75rem;
}

.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* Surface system */
.surface-sumi { background: var(--sumi); color: var(--kinari); }
.surface-kinari { background: var(--kinari); color: var(--sumi); }
.surface-ai { background: var(--ai); color: var(--kinari); }
.surface-akari { background: var(--akari); color: var(--sumi); }

.surface-kinari a { color: #8a6010; }
.surface-kinari a:hover { color: var(--sumi); }

/* Layout */
.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.section {
  padding: clamp(3rem, 8vw, 6rem) 0;
}

.section--tight {
  padding: clamp(2rem, 5vw, 3.5rem) 0;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(11, 13, 16, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(240, 180, 41, 0.15);
  transition: background var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.site-header.is-scrolled {
  background: rgba(22, 32, 46, 0.97);
  border-bottom-color: rgba(240, 180, 41, 0.35);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.site-logo {
  font-family: var(--font-mincho);
  font-size: 1.25rem;
  color: var(--kinari);
  letter-spacing: 0.08em;
}

.site-logo span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  color: var(--nibi);
  letter-spacing: 0.06em;
}

.site-nav {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  align-items: center;
}

.site-nav a {
  color: var(--kinari);
  font-size: 0.875rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--akari);
  border-bottom-color: var(--akari);
  outline: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--nibi);
  color: var(--kinari);
  padding: 0.5rem 0.75rem;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.875rem;
}

/* Hero — full bleed roji */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: url("/images/millaisle-01-hero-roji.jpg") center/cover no-repeat;
  z-index: 0;
}

.hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(11, 13, 16, 0.55) 0%,
    rgba(11, 13, 16, 0.75) 40%,
    rgba(11, 13, 16, 0.95) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__slogan {
  font-family: var(--font-mincho);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  margin-bottom: 1.5rem;
  max-width: 20ch;
}

.hero__lead {
  font-size: 1.0625rem;
  color: rgba(243, 238, 228, 0.88);
  max-width: 48ch;
  margin-bottom: 2rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), transform var(--transition);
  text-align: center;
}

.btn--primary {
  background: var(--akari);
  color: var(--sumi);
}

.btn--primary:hover {
  background: #ffd86a;
  color: var(--sumi);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--kinari);
  border: 1px solid var(--nibi);
}

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Cards & grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 2rem;
  align-items: start;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 1.75rem;
}

.card {
  padding: 1.75rem;
  border: 1px solid rgba(138, 143, 152, 0.25);
  background: rgba(22, 32, 46, 0.5);
}

.card__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--akari);
  margin-bottom: 0.5rem;
}

.card img {
  margin-bottom: 1rem;
  border: 1px solid rgba(138, 143, 152, 0.2);
}

/* Steps */
.steps {
  counter-reset: step;
  display: grid;
  gap: 1.5rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  padding: 1.5rem;
  border-left: 3px solid var(--akari);
  background: rgba(22, 32, 46, 0.4);
}

.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 1.5rem;
  color: var(--akari);
  line-height: 1;
}

/* Image blocks */
.img-block {
  position: relative;
  overflow: hidden;
}

.img-block img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.img-block__caption {
  font-size: 0.8125rem;
  color: var(--nibi);
  margin-top: 0.5rem;
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid rgba(138, 143, 152, 0.25);
  padding: 1.25rem 0;
}

.faq-item summary {
  font-family: var(--font-mincho);
  font-size: 1.0625rem;
  cursor: pointer;
  list-style: none;
  padding-right: 2rem;
  position: relative;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--akari);
}

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

.faq-item__answer {
  padding-top: 1rem;
  color: rgba(243, 238, 228, 0.9);
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.375rem;
  color: var(--kinari);
}

.form-group label .required {
  color: var(--akari);
  font-size: 0.75rem;
  margin-left: 0.25rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  background: var(--sumi);
  color: var(--kinari);
  border: 1px solid var(--nibi);
  line-height: var(--line-height);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--akari);
  border-color: var(--akari);
}

.form-group textarea { min-height: 160px; resize: vertical; }

.form-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-consent {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.875rem;
}

.form-consent input {
  width: auto;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.form-error {
  color: #ff6b6b;
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* Footer */
.site-footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid rgba(138, 143, 152, 0.2);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.site-footer h3 {
  font-size: 0.9375rem;
  margin-bottom: 0.75rem;
  color: var(--akari);
}

.site-footer ul {
  list-style: none;
  padding: 0;
}

.site-footer li { margin-bottom: 0.5rem; }

.site-footer a {
  color: var(--nibi);
  font-size: 0.875rem;
}

.site-footer a:hover { color: var(--akari); }

.site-footer__bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(138, 143, 152, 0.15);
  font-size: 0.8125rem;
  color: var(--nibi);
}

.site-footer__legal {
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

/* Page hero (inner pages) */
.page-hero {
  padding: calc(var(--header-h) + 3rem) 0 2.5rem;
  border-bottom: 1px solid rgba(138, 143, 152, 0.2);
}

.page-hero__title { margin-bottom: 1rem; }

.page-hero__lead {
  color: var(--nibi);
  max-width: 56ch;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 2000;
  background: var(--ai);
  border-top: 1px solid rgba(240, 180, 41, 0.3);
  padding: 1.25rem;
  transform: translateY(100%);
  transition: transform 0.4s ease;
}

.cookie-banner.is-visible { transform: translateY(0); }

.cookie-banner__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
}

.cookie-banner p {
  flex: 1 1 280px;
  font-size: 0.875rem;
  margin: 0;
}

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

.cookie-banner__actions .btn {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

/* Cookie settings modal */
.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 2100;
  background: rgba(11, 13, 16, 0.85);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.cookie-modal.is-open { display: flex; }

.cookie-modal__panel {
  background: var(--ai);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  border: 1px solid rgba(138, 143, 152, 0.3);
}

.cookie-modal__panel h3 { margin-bottom: 1rem; }

.cookie-option {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(138, 143, 152, 0.2);
  font-size: 0.875rem;
}

/* Reveal animations */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.no-js .reveal,
.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
    animation: none;
  }

  html { scroll-behavior: auto; }

  .cookie-banner {
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}

/* 800ms fallback */
@keyframes reveal-fallback {
  to { opacity: 1; transform: translateY(0); }
}

.js .reveal {
  animation: reveal-fallback 0.8s ease forwards;
  animation-delay: 0.1s;
}

.js .reveal.is-visible {
  animation: none;
}

/* 404 */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 2rem) 0 4rem;
  text-align: center;
}

.error-page .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.error-page h1 { margin-bottom: 1rem; }

.error-code {
  font-family: var(--font-mono);
  font-size: 5rem;
  color: var(--akari);
  opacity: 0.4;
  line-height: 1;
  margin-bottom: 1rem;
}

/* Legal pages */
.legal-content h2 {
  margin-top: 2.5rem;
  font-size: 1.25rem;
}

.legal-content h3 {
  margin-top: 1.5rem;
  font-size: 1.0625rem;
}

.legal-content ol { padding-left: 1.75rem; }

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.875rem;
}

.legal-content th,
.legal-content td {
  border: 1px solid rgba(138, 143, 152, 0.3);
  padding: 0.625rem 0.75rem;
  text-align: left;
}

.legal-content th {
  background: rgba(22, 32, 46, 0.6);
  font-weight: 500;
}

/* Fee table */
.fee-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
}

.fee-table th,
.fee-table td {
  border: 1px solid rgba(138, 143, 152, 0.3);
  padding: 0.875rem 1rem;
  text-align: left;
}

.fee-table th {
  background: rgba(240, 180, 41, 0.12);
  font-family: var(--font-mincho);
}

.fee-table .mono {
  white-space: nowrap;
}

/* CTA band */
.cta-band {
  text-align: center;
  padding: 3rem 1.5rem;
  border: 1px solid rgba(240, 180, 41, 0.25);
  background: rgba(22, 32, 46, 0.6);
}

.cta-band h2 { margin-bottom: 0.75rem; }

.cta-band p {
  margin-inline: auto;
  margin-bottom: 1.5rem;
  color: var(--nibi);
}

/* Main offset */
main { padding-top: 0; }

/* Responsive */
@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--sumi);
    flex-direction: column;
    padding: 1rem;
    border-bottom: 1px solid rgba(138, 143, 152, 0.2);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .hero { min-height: 90vh; }
}

@media (prefers-contrast: more) {
  :root {
    --nibi: #b0b5be;
  }
  a, .btn--outline { outline-offset: 2px; }
}