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

:root {
  --color-primary: #1a1a2e;
  --color-accent: #0f3460;
  --color-highlight: #e94560;
  --color-light: #f8f9fa;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-border: #e0e0e0;
  --font-main: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-heading: "Raleway", var(--font-main);
  --max-width: 1200px;
  --transition: 0.3s ease;
}

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

body {
  font-family: var(--font-main);
  color: var(--color-text);
  line-height: 1.8;
  background: var(--color-white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition);
}

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

ul {
  list-style: none;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.logo span {
  color: var(--color-highlight);
}

.nav-list {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-list a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
  padding: 4px 0;
}

.nav-list a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-highlight);
  transition: width var(--transition);
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--color-primary);
}

.nav-list a:hover::after,
.nav-list a.active::after {
  width: 100%;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.4);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 0 24px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto;
  line-height: 2;
}

/* ===== Sections ===== */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--color-light);
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== About Section (Home) ===== */
.about-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-block img {
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.about-text h3 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.about-text p {
  color: var(--color-text-light);
  line-height: 2;
}

/* ===== Strength Cards ===== */
.strength-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.strength-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 40px 28px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}

.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

.strength-card .icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-highlight));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--color-white);
}

.strength-card h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.strength-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 36px 32px;
  border: 1px solid var(--color-border);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  border-color: var(--color-highlight);
  box-shadow: 0 4px 24px rgba(233, 69, 96, 0.08);
}

.service-card h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.service-card h3 .badge {
  font-size: 0.75rem;
  background: var(--color-highlight);
  color: var(--color-white);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

/* ===== CTA Section ===== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  text-align: center;
  padding: 80px 24px;
}

.cta-section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 16px;
}

.cta-section p {
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 32px;
  line-height: 2;
}

.cta-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 24px;
  padding: 6px 20px;
  font-size: 0.9rem;
  margin-bottom: 24px;
}

.btn {
  display: inline-block;
  padding: 14px 40px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-highlight);
  color: var(--color-white);
}

.btn-primary:hover {
  background: #d03050;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(233, 69, 96, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-white);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

/* ===== Testimonials ===== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.testimonial-card {
  background: var(--color-white);
  border-radius: 12px;
  padding: 32px 28px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  position: relative;
}

.testimonial-card::before {
  content: "\201C";
  font-size: 4rem;
  color: var(--color-highlight);
  opacity: 0.2;
  position: absolute;
  top: 12px;
  left: 20px;
  line-height: 1;
  font-family: serif;
}

.testimonial-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
  position: relative;
  z-index: 1;
}

/* ===== About Page ===== */
.page-hero {
  position: relative;
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  margin-top: 72px;
  overflow: hidden;
}

.page-hero .hero-bg {
  filter: brightness(0.35);
}

.page-hero h1 {
  position: relative;
  z-index: 1;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-hero .page-subtitle {
  position: relative;
  z-index: 1;
  font-size: 1.1rem;
  margin-top: 12px;
  opacity: 0.9;
}

.vision-block {
  max-width: 800px;
  margin: 0 auto;
}

.vision-block p {
  color: var(--color-text-light);
  line-height: 2.2;
  margin-bottom: 24px;
}

.ceo-letter {
  max-width: 800px;
  margin: 0 auto;
  background: var(--color-white);
  border-radius: 12px;
  padding: 48px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.ceo-letter p {
  color: var(--color-text-light);
  line-height: 2.2;
  margin-bottom: 20px;
}

.ceo-letter .signature {
  text-align: right;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 32px;
}

/* Team */
.team-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
  max-width: 900px;
  margin: 0 auto;
}

.team-card {
  text-align: center;
}

.team-card img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 20px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.1);
}

.team-card h3 {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.team-card .role {
  font-size: 0.85rem;
  color: var(--color-highlight);
  font-weight: 600;
  margin-bottom: 16px;
}

.team-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.9;
  text-align: left;
}

/* ===== Consultation Page ===== */
.consultation-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: var(--color-white);
  text-align: center;
  padding: 160px 24px 96px;
}

.consultation-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 20px;
}

.consultation-hero .lead {
  font-size: clamp(1rem, 2vw, 1.25rem);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
  line-height: 2;
}

.consultation-detail {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.consultation-detail p {
  color: var(--color-text-light);
  line-height: 2.2;
  margin-bottom: 20px;
}

.free-badge {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-highlight);
  border: 3px solid var(--color-highlight);
  border-radius: 12px;
  padding: 12px 32px;
  margin: 24px 0 32px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 48px 0 32px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  gap: 48px;
}

.footer-brand .logo {
  color: var(--color-white);
  margin-bottom: 12px;
  display: block;
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.8;
}

.footer-contact {
  font-size: 0.85rem;
}

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.footer-contact img {
  width: 16px;
  height: 16px;
  opacity: 0.7;
}

.footer-nav {
  display: flex;
  gap: 24px;
}

.footer-nav a {
  font-size: 0.85rem;
  opacity: 0.7;
  transition: opacity var(--transition);
}

.footer-nav a:hover {
  opacity: 1;
}

.footer-bottom {
  text-align: center;
  font-size: 0.8rem;
  opacity: 0.5;
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .nav-list {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  }

  .nav-list.open {
    display: flex;
  }

  .hamburger {
    display: flex;
  }

  .about-block {
    grid-template-columns: 1fr;
  }

  .strength-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }

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

  .team-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-contact p {
    justify-content: center;
  }

  .footer-nav {
    justify-content: center;
    flex-wrap: wrap;
  }

  .ceo-letter {
    padding: 32px 24px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .section {
    padding: 64px 0;
  }
}