/* ===================================================
   oceanex Corporate Site - Stylesheet
   =================================================== */

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy:       #0d2145;
  --navy-light: #1a3368;
  --navy-mid:   #2a4a8a;
  --accent:     #1e8fff;
  --accent-2:   #00d4ff;
  --white:      #ffffff;
  --gray-50:    #f8f9fc;
  --gray-100:   #f1f3f8;
  --gray-200:   #e2e8f0;
  --gray-400:   #94a3b8;
  --gray-600:   #475569;
  --gray-800:   #1e293b;
  --success:    #10b981;
  --error:      #ef4444;

  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.14);
  --shadow-xl:  0 24px 60px rgba(0,0,0,.18);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --transition: .3s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: var(--font-ja);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

.sp-only { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 999px;
  font-family: var(--font-ja);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn--lg { padding: 16px 40px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(30,143,255,.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(30,143,255,.45);
}

.btn--ghost {
  background: rgba(255,255,255,.12);
  color: var(--white);
  border-color: rgba(255,255,255,.4);
  backdrop-filter: blur(4px);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.22);
  border-color: rgba(255,255,255,.7);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn--outline:hover {
  background: var(--navy);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.55);
  padding: 10px 24px;
  font-size: .875rem;
}
.btn--outline-white:hover {
  background: var(--white);
  color: var(--navy);
}

/* ---------- Section Commons ---------- */
.section { padding: 100px 0; }

.section__head {
  text-align: center;
  margin-bottom: 64px;
}
.section__label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
  padding: 4px 16px;
  border: 1px solid rgba(30,143,255,.3);
  border-radius: 999px;
  background: rgba(30,143,255,.06);
}
.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.25;
  margin-bottom: 20px;
}
.section__desc {
  font-size: 1rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.85;
}

/* ---------- Reveal Animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}
.reveal--delay-1 { transition-delay: .12s; }
.reveal--delay-2 { transition-delay: .24s; }
.reveal--delay-3 { transition-delay: .36s; }

/* ===================================================
   HEADER
   =================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0;
  transition: var(--transition);
}
.header.scrolled {
  background: rgba(13,33,69,.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,.2);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -.02em;
}
.logo__ocean { color: var(--white); }
.logo__ex { color: var(--accent); }
.logo--footer .logo__ocean { color: var(--white); }

.nav__list {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__link {
  color: rgba(255,255,255,.85);
  font-size: .875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.nav__link:hover { color: var(--white); background: rgba(255,255,255,.1); }
.nav__btn { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===================================================
   HERO
   =================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--navy);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__wave {
  position: absolute;
  border-radius: 50%;
  opacity: .08;
}
.hero__wave--1 {
  width: 900px; height: 900px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  top: -200px; right: -200px;
  animation: pulse 8s ease-in-out infinite;
}
.hero__wave--2 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
  bottom: -100px; left: -100px;
  animation: pulse 10s ease-in-out infinite reverse;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: .08; }
  50% { transform: scale(1.15); opacity: .14; }
}

.hero__particles {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 80% 20%, rgba(30,143,255,.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 60%, rgba(255,255,255,.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 10% 80%, rgba(30,143,255,.4) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 90% 50%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 15%, rgba(0,212,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 90%, rgba(255,255,255,.25) 0%, transparent 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-top: 80px;
  padding-bottom: 80px;
  max-width: 800px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(30,143,255,.2);
  border: 1px solid rgba(30,143,255,.4);
  color: var(--accent-2);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 28px;
  animation: fadeInUp .8s ease both;
}
.hero__badge::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-2);
  animation: blink 1.5s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.3} }

.hero__title {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.2;
  margin-bottom: 24px;
  animation: fadeInUp .8s ease .15s both;
}
.hero__title--accent {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__sub {
  font-size: clamp(.95rem, 2vw, 1.15rem);
  color: rgba(255,255,255,.78);
  line-height: 1.9;
  margin-bottom: 44px;
  animation: fadeInUp .8s ease .3s both;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 60px;
  animation: fadeInUp .8s ease .45s both;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 24px 32px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(8px);
  animation: fadeInUp .8s ease .6s both;
}
.stat { text-align: center; }
.stat__num {
  display: block;
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat__num small {
  font-size: .75em;
  font-weight: 600;
}
.stat__label {
  display: block;
  font-size: .75rem;
  color: rgba(255,255,255,.6);
  margin-top: 4px;
}
.stat__divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.15);
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.5);
  font-size: .7rem;
  letter-spacing: .15em;
  font-family: var(--font-en);
  animation: fadeInUp 1s ease 1s both;
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,.5), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: none; }
}

/* ===================================================
   SERVICES
   =================================================== */
.services { background: var(--gray-50); }

.services__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-bottom: 80px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.service-card__icon {
  width: 64px; height: 64px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
}
.service-card--primary .service-card__icon {
  background: linear-gradient(135deg, #e8f4ff, #c8e4ff);
  color: var(--accent);
}
.service-card--secondary .service-card__icon {
  background: linear-gradient(135deg, #e8fff8, #c8f5e8);
  color: #10b981;
}
.service-card__icon svg { width: 36px; height: 36px; }

.service-card__title {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 16px;
}
.service-card__desc {
  color: var(--gray-600);
  margin-bottom: 28px;
  line-height: 1.85;
}
.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.service-card__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .925rem;
  color: var(--gray-700, #374151);
}
.service-card__list li::before {
  content: '';
  width: 20px; height: 20px;
  flex-shrink: 0;
  background: url("data:image/svg+xml,%3Csvg viewBox='0 0 20 20' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='10' cy='10' r='9' fill='%231e8fff' fill-opacity='.15'/%3E%3Cpath d='M6 10l3 3 5-5' stroke='%231e8fff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/contain no-repeat;
}

/* Pricing */
.pricing { background: var(--white); border-radius: var(--radius-xl); padding: 64px 48px; box-shadow: var(--shadow-md); }

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

.plan-card {
  position: relative;
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}
.plan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.plan-card--featured {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}
.plan-card--featured:hover { transform: translateY(-14px); }

.plan-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 20px;
  border-radius: 999px;
  white-space: nowrap;
}

.plan-card__header { margin-bottom: 28px; }
.plan-card__name {
  font-size: .875rem;
  font-weight: 700;
  color: var(--gray-600);
  margin-bottom: 12px;
}
.plan-card--featured .plan-card__name { color: rgba(255,255,255,.7); }

.plan-card__price {
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.plan-card__yen { font-size: 1.1rem; font-weight: 700; color: var(--navy); }
.plan-card--featured .plan-card__yen { color: var(--white); }
.plan-card__amount { font-family: var(--font-en); font-size: 2.2rem; font-weight: 900; color: var(--navy); line-height: 1; }
.plan-card--featured .plan-card__amount { color: var(--white); }
.plan-card__unit { font-size: 1rem; font-weight: 700; color: var(--navy); }
.plan-card--featured .plan-card__unit { color: rgba(255,255,255,.8); }
.plan-card__note { font-size: .75rem; color: var(--gray-400); margin-top: 4px; }
.plan-card--featured .plan-card__note { color: rgba(255,255,255,.5); }

.plan-card__features {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}
.plan-card__features li {
  font-size: .875rem;
  padding-left: 28px;
  position: relative;
  line-height: 1.5;
}
.plan-card__features li.ok::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: 700;
}
.plan-card--featured .plan-card__features li.ok::before { color: var(--accent-2); }
.plan-card__features li.no {
  opacity: .4;
}
.plan-card__features li.no::before {
  content: '–';
  position: absolute;
  left: 2px;
  font-weight: 700;
}

.pricing__note {
  text-align: center;
  font-size: .825rem;
  color: var(--gray-400);
  margin-top: 32px;
}

/* ===================================================
   FLOW
   =================================================== */
.flow { background: var(--white); }

.flow__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.flow__steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: linear-gradient(to right, var(--accent), var(--accent-2));
  z-index: 0;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 16px;
  position: relative;
  z-index: 1;
}

.flow-step__num {
  font-family: var(--font-en);
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--accent);
  margin-bottom: 8px;
}

.flow-step__icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: 0 0 0 6px rgba(30,143,255,.1);
  transition: var(--transition);
}
.flow-step:hover .flow-step__icon {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 0 0 8px rgba(30,143,255,.15);
}
.flow-step__icon svg { width: 32px; height: 32px; color: var(--accent); transition: var(--transition); }
.flow-step:hover .flow-step__icon svg { color: var(--white); }

.flow-step__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
}
.flow-step__desc {
  font-size: .825rem;
  color: var(--gray-600);
  line-height: 1.75;
}
.flow-step__days {
  display: inline-block;
  margin-top: 12px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(30,143,255,.08);
  padding: 3px 12px;
  border-radius: 999px;
}

.flow__total {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 56px;
  padding: 24px 40px;
  background: linear-gradient(135deg, var(--navy), var(--navy-mid));
  border-radius: var(--radius-lg);
  color: var(--white);
  flex-wrap: wrap;
  text-align: center;
}
.flow__total-label {
  font-size: .875rem;
  opacity: .7;
}
.flow__total-value {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent-2);
}
.flow__total-note {
  font-size: .8rem;
  opacity: .6;
}

/* ===================================================
   WORKS
   =================================================== */
.works { background: var(--gray-50); }

.works__filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 24px;
  border-radius: 999px;
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-ja);
}
.filter-btn:hover, .filter-btn--active {
  background: var(--navy);
  border-color: var(--navy);
  color: var(--white);
}

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

.work-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

/* Stretched link — makes the entire card clickable */
.work-card__full-link {
  position: absolute;
  inset: 0;
  z-index: 1;
}

/* Demo button floated top-right, raised above the stretched link */
.work-card__demo-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 2;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--accent);
  border: 1px solid rgba(30,143,255,.3);
  border-radius: 999px;
  padding: 4px 12px;
  background: rgba(30,143,255,.06);
  transition: var(--transition);
  white-space: nowrap;
}
.work-card__demo-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}
.work-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}
.work-card[style*="display: none"] { display: none !important; }

.work-card__img {
  position: relative;
  height: 200px;
  overflow: hidden;
}
.work-card__img--1 { background: linear-gradient(135deg, #ffecd2, #fcb69f); }
.work-card__img--2 { background: linear-gradient(135deg, #a8edea, #fed6e3); }
.work-card__img--3 { background: linear-gradient(135deg, #d4e4ff, #b8ceff); }
.work-card__img--4 { background: linear-gradient(135deg, #ffd6cc, #ffb3a0); }
.work-card__img--5 { background: linear-gradient(135deg, #c8f5e8, #a8ecd4); }
.work-card__img--6 { background: linear-gradient(135deg, #e8d5ff, #d0b0ff); }
.work-card__img--7 { background: linear-gradient(135deg, #cff0e8, #9ee8d4, #7ddbc0); }

/* Live demo badge */
.work-card__live-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #059669;
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .1em;
  padding: 4px 10px;
  border-radius: 999px;
}
.work-card__live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  flex-shrink: 0;
  animation: liveBlink 1.5s ease-in-out infinite;
}
@keyframes liveBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: .3; }
}

/* Dual action buttons for demo cards */
.work-card__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}
.work-card__action-btn {
  display: block;
  text-align: center;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .03em;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: var(--transition);
}
.work-card__action-btn--primary {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
}
.work-card__action-btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(16,185,129,.35);
}
.work-card__action-btn--secondary {
  background: transparent;
  color: var(--navy);
  border-color: var(--gray-200);
}
.work-card__action-btn--secondary:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.work-card__demo-cred {
  font-size: .7rem;
  color: var(--gray-400);
  text-align: center;
  margin-top: 6px;
  letter-spacing: .02em;
}

/* Placeholder screen-like illustration */
.work-card__img::after {
  content: '';
  position: absolute;
  inset: 20px;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,.55);
  border: 1px solid rgba(255,255,255,.8);
  backdrop-filter: blur(2px);
}
.work-card__img::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 28px;
  right: 28px;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,.7);
  z-index: 1;
}

.work-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(13,33,69,.75);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  z-index: 2;
}
.work-card:hover .work-card__overlay { opacity: 1; }
.work-card__view {
  color: var(--white);
  font-weight: 700;
  font-size: .875rem;
  padding: 10px 24px;
  border: 1.5px solid rgba(255,255,255,.6);
  border-radius: 999px;
}

.work-card__body { padding: 24px; }
.work-card__tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.tag--hp { background: #e8f4ff; color: var(--accent); }
.tag--reserve { background: #e8fff8; color: #059669; }
.tag--ec { background: #fff3e8; color: #d97706; }

.work-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.work-card__desc {
  font-size: .825rem;
  color: var(--gray-600);
  line-height: 1.65;
}

.works__cta {
  text-align: center;
  margin-top: 56px;
}
.works__cta p {
  color: var(--gray-600);
  margin-bottom: 20px;
}

/* ===================================================
   FAQ
   =================================================== */
.faq { background: var(--white); }

.faq__list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(30,143,255,.3); }
.faq-item.open { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(30,143,255,.08); }

.faq-item__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  background: var(--white);
  border: none;
  cursor: pointer;
  font-family: var(--font-ja);
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  text-align: left;
  transition: var(--transition);
}
.faq-item__q:hover { background: var(--gray-50); }

.faq-item__icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--gray-200);
  position: relative;
  transition: var(--transition);
}
.faq-item__icon::before,
.faq-item__icon::after {
  content: '';
  position: absolute;
  background: var(--gray-400);
  border-radius: 2px;
  transition: var(--transition);
}
.faq-item__icon::before { width: 12px; height: 2px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.faq-item__icon::after  { width: 2px; height: 12px; top: 50%; left: 50%; transform: translate(-50%,-50%); }

.faq-item.open .faq-item__icon { border-color: var(--accent); background: var(--accent); }
.faq-item.open .faq-item__icon::before,
.faq-item.open .faq-item__icon::after { background: var(--white); }
.faq-item.open .faq-item__icon::after { transform: translate(-50%,-50%) rotate(90deg); opacity: 0; }

.faq-item__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.faq-item.open .faq-item__a { max-height: 300px; }
.faq-item__a p {
  padding: 0 28px 24px;
  color: var(--gray-600);
  line-height: 1.85;
  font-size: .95rem;
  border-top: 1px solid var(--gray-100);
  padding-top: 20px;
}

/* ===================================================
   COMPANY
   =================================================== */
.company { background: var(--gray-50); }

.company__inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.company-table th,
.company-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-100);
  font-size: .925rem;
  text-align: left;
  vertical-align: top;
}
.company-table tr:last-child th,
.company-table tr:last-child td { border-bottom: none; }
.company-table th {
  width: 36%;
  color: var(--gray-600);
  font-weight: 700;
  background: var(--gray-50);
  white-space: nowrap;
}
.company-table td a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.company-table td a:hover { color: var(--navy); }

.company__mission {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.mission-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.mission-card:hover { box-shadow: var(--shadow-md); }
.mission-card__icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, #e8f4ff, #c8e4ff);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.mission-card__icon svg { width: 24px; height: 24px; color: var(--accent); }
.mission-card h3 {
  font-family: var(--font-en);
  font-size: .875rem;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.mission-card p {
  color: var(--gray-600);
  font-size: .9rem;
  line-height: 1.85;
}

/* ===================================================
   CONTACT
   =================================================== */
.contact {
  background: linear-gradient(175deg, var(--navy) 0%, var(--navy-light) 100%);
  position: relative;
  overflow: hidden;
}
.contact::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(30,143,255,.12) 0%, transparent 70%);
  top: -200px; right: -100px;
}

.contact .section__label { border-color: rgba(30,143,255,.4); }
.contact .section__title { color: var(--white); }
.contact .section__desc { color: rgba(255,255,255,.7); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
  position: relative;
  z-index: 1;
}

.contact__form-wrap {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-xl);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group {
  margin-bottom: 20px;
}
.form-label {
  display: block;
  font-size: .875rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}
.required {
  display: inline-block;
  font-size: .7rem;
  background: var(--error);
  color: var(--white);
  padding: 1px 7px;
  border-radius: 4px;
  margin-left: 6px;
  vertical-align: middle;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-ja);
  font-size: .95rem;
  color: var(--gray-800);
  background: var(--gray-50);
  transition: var(--transition);
  outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(30,143,255,.12);
}
.form-input.error, .form-select.error, .form-textarea.error {
  border-color: var(--error);
}
.form-textarea { resize: vertical; min-height: 130px; }

.form-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.form-check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .9rem;
  cursor: pointer;
  color: var(--gray-800);
}
.form-check input[type="radio"],
.form-check input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}
.form-check--privacy { margin-top: 4px; }

.form-error {
  display: block;
  font-size: .8rem;
  color: var(--error);
  margin-top: 4px;
  min-height: 1.2em;
}
.text-link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px;
}
.form-success__icon svg {
  width: 72px; height: 72px;
  color: var(--success);
  margin: 0 auto 20px;
}
.form-success h3 {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--navy);
  margin-bottom: 12px;
}
.form-success p {
  color: var(--gray-600);
  line-height: 1.8;
}

.contact-info-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  padding: 28px;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}
.contact-info-card__title {
  font-size: .8rem;
  font-weight: 700;
  color: rgba(255,255,255,.6);
  letter-spacing: .08em;
  margin-bottom: 10px;
}
.contact-info-card__tel {
  display: block;
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 6px;
}
.contact-info-card__email {
  display: block;
  font-size: .95rem;
  color: var(--accent-2);
  margin-bottom: 6px;
  word-break: break-all;
}
.contact-info-card__hours {
  font-size: .8rem;
  color: rgba(255,255,255,.55);
}

.contact-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(30,143,255,.2);
  border: 1px solid rgba(30,143,255,.35);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  color: var(--accent-2);
  font-size: .875rem;
  font-weight: 700;
}
.contact-badge svg { width: 20px; height: 20px; }

/* ===================================================
   FOOTER
   =================================================== */
.footer {
  background: var(--navy);
  padding: 64px 0 0;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.footer__brand .logo { font-size: 1.75rem; margin-bottom: 16px; display: inline-block; }
.footer__tagline {
  font-size: .875rem;
  color: rgba(255,255,255,.55);
  line-height: 1.8;
  margin-bottom: 24px;
}
.footer__sns {
  display: flex;
  gap: 12px;
}
.sns-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.sns-btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}
.sns-btn svg { width: 18px; height: 18px; }

.footer__nav {
  display: flex;
  gap: 48px;
}
.footer__nav-col h4 {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.4);
  margin-bottom: 16px;
}
.footer__nav-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__nav-col a {
  font-size: .875rem;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
}
.footer__nav-col a:hover { color: var(--white); }

.footer__bottom {
  padding: 24px 0;
  text-align: center;
}
.footer__bottom p {
  font-size: .8rem;
  color: rgba(255,255,255,.3);
}

/* ===================================================
   BACK TO TOP
   =================================================== */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(30,143,255,.4);
  opacity: 0;
  transform: translateY(16px);
  transition: var(--transition);
  z-index: 999;
  pointer-events: none;
}
.back-to-top.visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}
.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(30,143,255,.5);
}
.back-to-top svg { width: 20px; height: 20px; }

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 1024px) {
  .pricing__grid { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; }
  .plan-card--featured { transform: none; }
  .plan-card--featured:hover { transform: translateY(-4px); }
  .company__inner { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; }
  .contact__info { order: -1; }
  .contact-info-card { display: inline-block; min-width: 260px; }
}

@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr; }
  .works__grid { grid-template-columns: repeat(2, 1fr); }
  .flow__steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .flow__steps::before { display: none; }
  .footer__inner { grid-template-columns: 1fr; gap: 40px; }
  .footer__nav { flex-wrap: wrap; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  /* Header mobile */
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(13,33,69,.98);
    backdrop-filter: blur(12px);
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border-top: 1px solid rgba(255,255,255,.1);
  }
  .nav.open {
    transform: none;
    opacity: 1;
    visibility: visible;
  }
  .nav__list { flex-direction: column; gap: 4px; }
  .nav__link, .nav__btn { padding: 12px 16px; }
  .nav__btn { margin-left: 0; align-self: flex-start; }
  .hamburger { display: flex; }

  /* Hero */
  .sp-only { display: inline; }
  .hero__stats { flex-direction: column; align-items: flex-start; gap: 16px; padding: 20px 24px; }
  .stat__divider { width: 40px; height: 1px; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; max-width: 320px; }

  /* Flow */
  .flow__steps { grid-template-columns: 1fr; }

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

  /* Contact form */
  .form-row { grid-template-columns: 1fr; }
  .contact__form-wrap { padding: 28px 24px; }

  /* Pricing */
  .pricing { padding: 40px 24px; }

  /* Back to top */
  .back-to-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 1.75rem; }
  .container { padding: 0 16px; }
  .service-card { padding: 32px 24px; }
  .form-checks { flex-direction: column; }
}