/* Edgecomputeinsights — elegant luxury theme */
:root {
  --bg: #f3f1ec;
  --bg-deep: #ebe7df;
  --ink: #1c2329;
  --ink-soft: #3d4650;
  --muted: #6a737c;
  --line: rgba(28, 35, 41, 0.12);
  --gold: #a67c52;
  --gold-soft: #c4a574;
  --gold-deep: #8a643f;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #fffcf8;
  --shadow: 0 18px 48px rgba(28, 35, 41, 0.08);
  --radius: 2px;
  --header-h: 4.5rem;
  --font-display: "Shippori Mincho", "Noto Serif JP", serif;
  --font-body: "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(196, 165, 116, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 5%, rgba(28, 35, 41, 0.05), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  background-attachment: fixed;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--gold-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
  transition: color 0.25s var(--ease);
}

a:hover {
  color: var(--ink);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.02em;
  margin: 0 0 0.75rem;
}

p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.wrap {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.wide {
  width: min(100% - 2.5rem, 1280px);
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  background: rgba(243, 241, 236, 0.86);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 0.7rem;
  height: 0.7rem;
  background: var(--gold);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(166, 124, 82, 0.2);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

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

.site-nav .nav-cta {
  padding: 0.45rem 1rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.site-nav .nav-cta:hover {
  background: var(--ink);
  color: var(--bg);
}

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 1.35rem;
  height: 1px;
  background: var(--ink);
  position: relative;
}

.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
}

.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }

@media (max-width: 920px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.25rem 1.5rem;
    background: var(--surface-solid);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s var(--ease), opacity 0.35s var(--ease);
  }
  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav a {
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
  }
  .site-nav .nav-cta {
    margin-top: 0.75rem;
    text-align: center;
    border-bottom: 1px solid var(--ink);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--ink);
  color: var(--bg);
}

.btn-primary:hover {
  background: var(--gold-deep);
  color: #fff;
}

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

.btn-ghost:hover {
  background: var(--ink);
  color: var(--bg);
}

.btn-gold {
  background: var(--gold);
  color: #fff;
}

.btn-gold:hover {
  background: var(--gold-deep);
  color: #fff;
}

/* Hero — full-bleed visual plane */
.hero-bleed {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: end;
  color: #f7f4ee;
  overflow: hidden;
}

.hero-bleed::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(28, 35, 41, 0.25) 0%, rgba(28, 35, 41, 0.72) 70%, rgba(28, 35, 41, 0.88) 100%),
    var(--hero-image) center / cover no-repeat;
  transform: scale(1.04);
  animation: heroDrift 18s var(--ease) infinite alternate;
}

.hero-bleed::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(28, 35, 41, 0.55) 0%, transparent 55%);
  pointer-events: none;
}

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.5%, -1%, 0); }
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 5rem 0 4.5rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  letter-spacing: 0.06em;
  margin: 0 0 1.25rem;
  color: #fff;
  opacity: 0;
  animation: riseIn 0.9s var(--ease) 0.15s forwards;
}

.hero-rule {
  width: 4.5rem;
  height: 1px;
  background: var(--gold-soft);
  margin: 0 0 1.5rem;
  opacity: 0;
  animation: riseIn 0.9s var(--ease) 0.35s forwards;
}

.hero-lead {
  max-width: 32rem;
  font-size: 1.05rem;
  color: rgba(247, 244, 238, 0.88);
  margin-bottom: 2rem;
  opacity: 0;
  animation: riseIn 0.9s var(--ease) 0.5s forwards;
}

.hero-actions {
  opacity: 0;
  animation: riseIn 0.9s var(--ease) 0.65s forwards;
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Reveal on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}

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

/* Sections */
.section {
  padding: 5.5rem 0;
}

.section-tight {
  padding: 3.5rem 0;
}

.section-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  margin-bottom: 1rem;
}

.section-intro {
  max-width: 38rem;
  margin-bottom: 2.5rem;
}

.split {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 860px) {
  .split-2 {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .split-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.surface {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.75rem;
}

.media-frame {
  overflow: hidden;
  border: 1px solid var(--line);
}

.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 1.2s var(--ease);
}

.media-frame:hover img {
  transform: scale(1.04);
}

/* Benefit list — not cards by default */
.benefit-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.benefit-item {
  display: grid;
  gap: 0.75rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
}

@media (min-width: 760px) {
  .benefit-item {
    grid-template-columns: 8rem 1fr;
    gap: 2rem;
  }
}

.benefit-num {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold);
}

/* Course / blog listing */
.item-grid {
  display: grid;
  gap: 2rem;
}

@media (min-width: 760px) {
  .item-grid.cols-2 { grid-template-columns: 1fr 1fr; }
  .item-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.item-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.item-block h3 {
  font-size: 1.25rem;
  margin: 0;
}

.item-block h3 a {
  text-decoration: none;
  color: var(--ink);
}

.item-meta {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* Testimonials */
.quote-stack {
  display: grid;
  gap: 2rem;
}

.quote {
  padding: 0;
  margin: 0;
  border-left: 2px solid var(--gold-soft);
  padding-left: 1.5rem;
}

.quote p {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--ink);
  margin-bottom: 0.85rem;
}

.quote footer {
  font-size: 0.85rem;
  color: var(--muted);
}

.quote.compact p {
  font-family: var(--font-body);
  font-size: 0.98rem;
}

.stars {
  color: var(--gold);
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

/* Pricing */
.price-tiers {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 860px) {
  .price-tiers.tiers-3 {
    grid-template-columns: repeat(3, 1fr);
  }
  .price-tiers.tiers-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tier {
  padding: 2rem 1.5rem;
  border-top: 2px solid var(--ink);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-height: 100%;
}

.tier.featured {
  border-top-color: var(--gold);
  background: var(--surface-solid);
}

.tier-name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0;
}

.tier-price {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--ink);
}

.tier-price span {
  font-size: 0.9rem;
  color: var(--muted);
  font-family: var(--font-body);
}

.tier ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
  flex: 1;
}

.tier li {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.tier-note {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Forms */
.form {
  display: grid;
  gap: 1.15rem;
  max-width: 36rem;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form label {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--ink);
}

.form input,
.form select,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  background: var(--surface-solid);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  transition: border-color 0.25s var(--ease);
}

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--gold);
}

.form textarea {
  min-height: 140px;
  resize: vertical;
}

.field-error {
  color: #9b3b2e;
  font-size: 0.82rem;
  min-height: 1.1em;
}

.form-status {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  font-size: 0.92rem;
  display: none;
}

.form-status.is-success {
  display: block;
  border-color: #4a6b52;
  color: #2d4a35;
  background: rgba(74, 107, 82, 0.08);
}

.form-status.is-error {
  display: block;
  border-color: #9b3b2e;
  color: #9b3b2e;
  background: rgba(155, 59, 46, 0.06);
}

.contact-aside {
  display: grid;
  gap: 1.25rem;
}

.contact-block h3 {
  font-size: 1rem;
  margin-bottom: 0.35rem;
}

.contact-block p {
  margin: 0;
  white-space: pre-line;
}

/* FAQ */
.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 0;
}

.faq-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

/* Legal */
.legal {
  max-width: 46rem;
}

.legal h2 {
  font-size: 1.35rem;
  margin-top: 2.25rem;
}

.legal table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.25rem 0;
}

.legal th,
.legal td {
  border: 1px solid var(--line);
  padding: 0.75rem;
  text-align: left;
  vertical-align: top;
}

.legal th {
  background: var(--bg-deep);
  font-weight: 500;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  inset: auto 1rem 1rem 1rem;
  z-index: 200;
  max-width: 420px;
  margin-left: auto;
  padding: 1.35rem 1.4rem;
  background: var(--surface-solid);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: none;
}

.cookie-banner.is-visible {
  display: block;
  animation: riseIn 0.5s var(--ease);
}

.cookie-banner p {
  font-size: 0.88rem;
  margin-bottom: 1rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.cookie-actions .btn {
  padding: 0.55rem 1rem;
  font-size: 0.82rem;
}

.inline-error {
  margin: 0.5rem 0;
  padding: 0.65rem 0.85rem;
  border: 1px solid #9b3b2e;
  color: #9b3b2e;
  font-size: 0.85rem;
  background: rgba(155, 59, 46, 0.06);
}

/* Page hero (inner pages) */
.page-hero {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 0.75rem;
}

.page-hero p {
  max-width: 36rem;
  margin: 0;
}

.page-hero-media {
  position: relative;
  min-height: 280px;
  display: grid;
  align-items: end;
  color: #fff;
  overflow: hidden;
}

.page-hero-media::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(28, 35, 41, 0.2), rgba(28, 35, 41, 0.78)),
    var(--hero-image) center / cover no-repeat;
}

.page-hero-media .wrap {
  position: relative;
  z-index: 1;
  padding: 4rem 0 2.5rem;
}

.page-hero-media h1,
.page-hero-media p {
  color: rgba(255, 255, 255, 0.92);
}

/* Stats — restrained */
.stat-row {
  display: grid;
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-block: 1px solid var(--line);
}

@media (min-width: 700px) {
  .stat-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

.stat-value {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--ink);
  display: block;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--muted);
}

/* Modules */
.module-list {
  counter-reset: mod;
}

.module-item {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--line);
  counter-increment: mod;
}

.module-item::before {
  content: "モジュール " counter(mod, decimal-leading-zero);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--gold);
}

/* Instructor */
.instructor {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 700px) {
  .instructor {
    grid-template-columns: 180px 1fr;
  }
}

.instructor img {
  width: 180px;
  height: 180px;
  object-fit: cover;
  border: 1px solid var(--line);
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  padding: 3.5rem 0 1.5rem;
  background: var(--ink);
  color: rgba(243, 241, 236, 0.78);
}

.footer-grid {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: grid;
  gap: 2rem;
}

@media (min-width: 800px) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr 1.3fr;
  }
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: #fff;
  margin-bottom: 0.5rem;
}

.footer-tagline {
  font-size: 0.88rem;
  color: rgba(243, 241, 236, 0.65);
}

.footer-heading {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-bottom: 0.85rem;
}

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

.footer-col li {
  margin-bottom: 0.45rem;
}

.site-footer a {
  color: rgba(243, 241, 236, 0.78);
  text-decoration: none;
}

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

.footer-contact p {
  color: rgba(243, 241, 236, 0.78);
  font-size: 0.9rem;
  margin-bottom: 0.45rem;
}

.footer-bottom {
  width: min(100% - 2.5rem, var(--max));
  margin: 2.5rem auto 0;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(243, 241, 236, 0.12);
  font-size: 0.8rem;
  color: rgba(243, 241, 236, 0.5);
}

.footer-bottom p {
  margin: 0;
  color: inherit;
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 1.25rem;
}

.error-page .code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 7rem);
  color: var(--gold-soft);
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* Case study */
.case {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
}

.case h3 {
  font-size: 1.4rem;
}

/* Utilities */
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.text-muted { color: var(--muted); }
.center { text-align: center; }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .hero-bleed::before {
    transform: none;
  }
}