/* ============================================================
   RESET & BASE
============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --clr-white:   #ffffff;
  --clr-bg:      #f8f8f6;
  --clr-bg2:     #f0f0ee;
  --clr-accent:  #111111;
  --clr-accent2: #333333;
  --clr-text:    #111111;
  --clr-text2:   #777777;
  --clr-border:  #e2e2e0;
  --clr-tag:     #ebebea;
  --clr-tag-t:   #444444;

  --ff-display: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
  --ff-ja:      'Noto Sans JP', 'Yu Gothic', 'ヒラギノ角ゴ Pro', sans-serif;
  --ff-en:      'Inter', 'Helvetica Neue', Arial, sans-serif;

  --radius:    10px;
  --radius-lg: 18px;
  --shadow:    0 2px 20px rgba(0,0,0,.06);
  --shadow-hover: 0 10px 48px rgba(0,0,0,.11);

  --transition: .25s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: var(--ff-ja);
  color: var(--clr-text);
  background: var(--clr-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

.sp-only { display: none; }

/* ============================================================
   UTILITIES
============================================================ */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 32px;
}

.section { padding: 120px 0; }

.section-header {
  text-align: center;
  margin-bottom: 88px;
}

.section-label {
  display: inline-block;
  font-family: var(--ff-en);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--clr-text2);
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--ff-display);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 600;
  font-style: italic;
  line-height: 1.28;
  letter-spacing: .01em;
  color: var(--clr-text);
  margin-bottom: 20px;
}

.section-desc {
  font-size: .92rem;
  color: var(--clr-text2);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.9;
}

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--ff-ja);
  font-size: .88rem;
  font-weight: 600;
  letter-spacing: .06em;
  padding: 13px 30px;
  border-radius: 9999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.btn--primary {
  background: var(--clr-accent);
  color: var(--clr-white);
  box-shadow: 0 4px 18px rgba(0,0,0,.2);
}
.btn--primary:hover {
  background: var(--clr-accent2);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,.26);
}

.btn--ghost {
  background: transparent;
  color: var(--clr-text);
  border: 1.5px solid rgba(17,17,17,.45);
}
.btn--ghost:hover {
  background: rgba(17,17,17,.06);
  transform: translateY(-2px);
}

.btn--secondary {
  background: var(--clr-bg2);
  color: var(--clr-text);
  border: 1.5px solid var(--clr-border);
}
.btn--secondary:hover {
  background: var(--clr-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn--featured {
  background: var(--clr-white);
  color: var(--clr-text);
  border: none;
}
.btn--featured:hover {
  background: var(--clr-bg);
  transform: translateY(-2px);
}

.btn--lg { padding: 16px 42px; font-size: .96rem; }

/* ============================================================
   HEADER
============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 0 32px;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.header__inner {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo { display: flex; align-items: center; }

.logo-text {
  font-family: var(--ff-display);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--clr-white);
  transition: color var(--transition);
}

.header.scrolled .logo-text { color: var(--clr-text); }

.header__nav .nav-list {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header__nav a {
  font-size: .84rem;
  font-weight: 500;
  color: rgba(255,255,255,.82);
  letter-spacing: .03em;
  transition: color var(--transition);
}
.header.scrolled .header__nav a { color: var(--clr-text2); }
.header__nav a:hover { color: var(--clr-text); }
.header.scrolled .header__nav a:hover { color: var(--clr-text); }

.nav-cta {
  background: var(--clr-accent) !important;
  color: var(--clr-white) !important;
  padding: 9px 22px;
  border-radius: 9999px;
  font-weight: 600 !important;
  transition: background var(--transition), transform var(--transition) !important;
}
.nav-cta:hover {
  background: var(--clr-accent2) !important;
  transform: translateY(-1px);
  color: var(--clr-white) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
}
.hamburger span {
  display: block;
  height: 1.5px;
  border-radius: 2px;
  background: var(--clr-white);
  transition: transform var(--transition), opacity var(--transition), background var(--transition);
}
.header.scrolled .hamburger span { background: var(--clr-text); }
.hamburger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--clr-bg);
}

.hero__video-wrap {
  position: absolute;
  inset: 0;
}
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .18;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: rgba(248,248,246,.72);
}

/* no video → clean light background */
.hero__video-wrap:not(:has(source)) .hero__overlay {
  background: transparent;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 32px;
}

.hero__logotype {
  font-family: var(--ff-display);
  font-size: clamp(6rem, 22vw, 18rem);
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: 20px;
  /* subtle texture */
  -webkit-text-stroke: 0px transparent;
}

.hero__company {
  font-family: var(--ff-ja);
  font-size: clamp(.78rem, 1.5vw, .9rem);
  font-weight: 500;
  letter-spacing: .32em;
  color: var(--clr-text2);
  margin-bottom: 52px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--clr-text2);
  z-index: 2;
}
.scroll-text {
  font-family: var(--ff-en);
  font-size: .66rem;
  letter-spacing: .2em;
}
.scroll-line {
  display: block;
  width: 1px;
  height: 44px;
  background: linear-gradient(to bottom, var(--clr-text2), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  50.1%{ transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   ABOUT
============================================================ */
.about { background: var(--clr-white); }

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.about__img-wrap img { width: 100%; height: 100%; object-fit: cover; }

.about__lead {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  font-weight: 600;
  font-style: italic;
  color: var(--clr-text);
  margin-bottom: 20px;
  line-height: 1.55;
}
.about__text {
  font-size: .91rem;
  color: var(--clr-text2);
  margin-bottom: 48px;
  line-height: 2;
}

.about__stats {
  display: flex;
  gap: 40px;
}
.about__stats li {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.stat-num {
  font-family: var(--ff-display);
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-num small { font-size: 1.2rem; }
.stat-label {
  font-size: .74rem;
  color: var(--clr-text2);
  font-weight: 500;
  letter-spacing: .06em;
}

/* Company overview table */
.company-table {
  width: 100%;
  border-collapse: collapse;
}
.company-table tr {
  border-bottom: 1px solid var(--clr-border);
}
.company-table tr:first-child {
  border-top: 1px solid var(--clr-border);
}
.company-table th {
  width: 90px;
  padding: 12px 0;
  font-size: .78rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: .04em;
  vertical-align: top;
  text-align: left;
  white-space: nowrap;
}
.company-table td {
  padding: 12px 0 12px 16px;
  font-size: .84rem;
  color: var(--clr-text2);
  line-height: 1.75;
  vertical-align: top;
}

/* ============================================================
   SERVICES
============================================================ */
.services { background: var(--clr-bg); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.services__grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

.service-card {
  position: relative;
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: 44px 36px 48px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}

.service-card--accent {
  background: var(--clr-white);
  outline: 1.5px solid var(--clr-accent);
}

.service-card__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--clr-accent);
  color: var(--clr-white);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 4px 16px;
  border-radius: 9999px;
  white-space: nowrap;
}

.service-card__icon {
  width: 48px;
  height: 48px;
  color: var(--clr-text);
  margin-bottom: 24px;
  opacity: .75;
}
.service-card__icon svg { width: 100%; height: 100%; }

.service-card__title {
  font-family: var(--ff-ja);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: .02em;
}
.service-card__text {
  font-size: .86rem;
  color: var(--clr-text2);
  line-height: 1.9;
  margin-bottom: 22px;
}
.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.service-card__list li {
  font-size: .82rem;
  color: var(--clr-text2);
  padding-left: 16px;
  position: relative;
}
.service-card__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 1px;
  background: var(--clr-text2);
}

/* ============================================================
   WORKS
============================================================ */
.works { background: var(--clr-white); }

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.work-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--clr-white);
  transition: transform var(--transition), box-shadow var(--transition);
}
.work-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.work-card__video-wrap { position: relative; }

.yt-lazy {
  position: relative;
  display: block;
  aspect-ratio: 16/9;
  background: var(--clr-bg2);
  cursor: pointer;
  overflow: hidden;
}

.yt-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease, opacity .3s;
  filter: grayscale(20%);
}
.yt-lazy:hover .yt-thumb { transform: scale(1.04); opacity: .85; }

.yt-play {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,.1);
  transition: background .2s;
}
.yt-play:hover { background: rgba(255,255,255,.22); }
.yt-play svg { width: 56px; height: 40px; filter: drop-shadow(0 2px 8px rgba(0,0,0,.4)); }

.work-card__video-wrap iframe {
  width: 100%;
  aspect-ratio: 16/9;
  display: block;
}

.work-card__body {
  padding: 18px 22px 22px;
}

.work-card__tag {
  display: inline-block;
  font-family: var(--ff-en);
  font-size: .68rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 9999px;
  margin-bottom: 8px;
  background: var(--clr-tag);
  color: var(--clr-tag-t);
}

.work-card__title {
  font-size: .93rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: .01em;
}
.work-card__client {
  font-size: .78rem;
  color: var(--clr-text2);
}

/* ============================================================
   PRICING
============================================================ */
.pricing { background: var(--clr-bg); }

.pricing__blocks {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-bottom: 40px;
}

.pricing__block {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.pricing__block-title {
  background: var(--clr-accent);
  color: var(--clr-white);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  padding: 13px 24px;
}

.pricing__table {
  width: 100%;
  border-collapse: collapse;
}
.pricing__table thead tr {
  background: var(--clr-bg);
}
.pricing__table th {
  padding: 10px 20px;
  font-size: .72rem;
  font-weight: 700;
  color: var(--clr-text);
  letter-spacing: .06em;
  text-align: left;
  border-bottom: 1px solid var(--clr-border);
}
.pricing__table th:nth-child(1) { width: 34%; }
.pricing__table th:nth-child(2) { width: 20%; }
.pricing__table td {
  padding: 14px 20px;
  font-size: .84rem;
  color: var(--clr-text2);
  border-bottom: 1px solid var(--clr-border);
  vertical-align: top;
  line-height: 1.65;
}
.pricing__table tbody tr:last-child td { border-bottom: none; }
.pricing__table tbody tr:nth-child(even) td { background: var(--clr-bg); }

.price-col {
  font-weight: 700;
  color: var(--clr-text);
  white-space: nowrap;
  font-family: var(--ff-display);
  font-size: .92rem;
}
.price-sub {
  display: block;
  font-size: .74rem;
  color: var(--clr-text2);
  margin-top: 2px;
  font-weight: 400;
}

.pricing__note {
  font-size: .78rem;
  color: var(--clr-text2);
  line-height: 2;
  padding: 16px 20px;
  background: var(--clr-white);
  border-radius: var(--radius);
  border-left: 2px solid var(--clr-border);
}

/* ============================================================
   CONTACT
============================================================ */
.contact { background: var(--clr-white); }

.contact-form {
  max-width: 700px;
  margin: 0 auto;
}

.form-row { display: flex; gap: 20px; }
.form-row--half > .form-group { flex: 1; }

.form-group { margin-bottom: 28px; }

.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .83rem;
  font-weight: 600;
  color: var(--clr-text);
  margin-bottom: 9px;
  letter-spacing: .02em;
}

.required {
  font-size: .65rem;
  background: #fef2f2;
  color: #c0392b;
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: .06em;
}
.optional {
  font-size: .65rem;
  background: var(--clr-bg2);
  color: var(--clr-text2);
  padding: 2px 7px;
  border-radius: 4px;
  font-weight: 600;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  font-family: var(--ff-ja);
  font-size: .9rem;
  color: var(--clr-text);
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 13px 16px;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  appearance: none;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--clr-accent);
  box-shadow: 0 0 0 3px rgba(17,17,17,.08);
  background: var(--clr-white);
}
.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: #c0392b;
  box-shadow: 0 0 0 3px rgba(192,57,43,.08);
}

.form-select-wrap { position: relative; }
.form-select-wrap::after {
  content: '';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid var(--clr-text2);
  pointer-events: none;
}

.form-textarea { resize: vertical; min-height: 150px; line-height: 1.75; }

.form-error {
  font-size: .75rem;
  color: #c0392b;
  margin-top: 6px;
  min-height: 1.2em;
}

.form-group--privacy { margin-bottom: 36px; }

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}
.form-checkbox input[type="checkbox"] { position: absolute; opacity: 0; width: 0; height: 0; }
.checkbox-custom {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 1.5px solid var(--clr-border);
  border-radius: 4px;
  background: var(--clr-bg);
  position: relative;
  transition: border-color var(--transition), background var(--transition);
}
.form-checkbox input:checked + .checkbox-custom {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
}
.form-checkbox input:checked + .checkbox-custom::after {
  content: '';
  position: absolute;
  left: 5px; top: 2px;
  width: 7px; height: 11px;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(45deg);
}
.checkbox-label {
  font-size: .86rem;
  color: var(--clr-text2);
}
.checkbox-label a { color: var(--clr-text); text-decoration: underline; }

.form-submit { text-align: center; }

.form-success {
  margin-top: 28px;
  padding: 22px 28px;
  background: var(--clr-bg);
  border-radius: var(--radius);
  text-align: center;
  font-size: .9rem;
  color: var(--clr-text2);
  line-height: 1.9;
}

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--clr-bg);
  color: var(--clr-text2);
  padding: 64px 0 32px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 56px;
  align-items: start;
  margin-bottom: 48px;
}

.footer__logo { display: flex; align-items: center; }

.footer-logo-text {
  color: var(--clr-text) !important;
}

.footer__tagline {
  font-size: .78rem;
  margin-top: 10px;
  color: var(--clr-text2);
  letter-spacing: .08em;
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer__nav a {
  font-size: .82rem;
  color: var(--clr-text2);
  transition: color var(--transition);
  letter-spacing: .02em;
}
.footer__nav a:hover { color: var(--clr-text); }

.footer__info {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .8rem;
}

.footer__bottom {
  border-top: 1px solid var(--clr-border);
  padding-top: 24px;
  text-align: center;
  font-size: .72rem;
  color: var(--clr-text2);
  letter-spacing: .04em;
}

/* ============================================================
   ANIMATIONS (fade-in on scroll)
============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE — Tablet (≤900px)
============================================================ */
@media (max-width: 900px) {
  .section { padding: 96px 0; }
  .about__grid { grid-template-columns: 1fr; gap: 48px; }
  .services__grid,
  .services__grid--2col { grid-template-columns: 1fr; gap: 20px; }
  .works__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }
  .price-card--featured { transform: none; }
  .price-card--featured:hover { transform: translateY(-4px); }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

/* ============================================================
   RESPONSIVE — Mobile (≤600px)
============================================================ */
@media (max-width: 600px) {
  .sp-only { display: inline; }
  .section { padding: 80px 0; }
  .section-header { margin-bottom: 56px; }
  .container { padding: 0 20px; }

  /* Header */
  .hamburger { display: flex; }
  .header__nav {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(16px);
    padding: 24px 20px;
    transform: translateY(-110%);
    transition: transform var(--transition);
    box-shadow: 0 8px 40px rgba(0,0,0,.08);
  }
  .header__nav.is-open { transform: translateY(0); }
  .header__nav .nav-list {
    flex-direction: column;
    gap: 0;
  }
  .header__nav .nav-list li { border-bottom: 1px solid var(--clr-border); }
  .header__nav a {
    display: block;
    padding: 15px 0;
    color: var(--clr-text2) !important;
    font-size: .95rem;
  }
  .nav-cta {
    display: inline-block !important;
    margin-top: 12px;
    width: 100%;
    text-align: center;
    border-radius: 9999px !important;
  }

  /* Hero */
  .hero__logotype { letter-spacing: .1em; }
  .hero__actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 280px; }

  /* About */
  .about__stats { gap: 24px; flex-wrap: wrap; }

  /* Works */
  .works__grid { grid-template-columns: 1fr; }

  /* Pricing */
  .pricing__table th:nth-child(3),
  .pricing__table td:nth-child(3) { display: none; }

  /* Contact */
  .form-row--half { flex-direction: column; gap: 0; }

  /* Footer */
  .footer__inner { grid-template-columns: 1fr; gap: 36px; }
  .footer__nav ul { flex-direction: row; flex-wrap: wrap; gap: 8px 20px; }
}