/* ===================================
   Corporate Site - Style Sheet
   LANWAY-inspired Minimal Design
   with Orange Accent
   =================================== */

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

:root {
  /* Accent Color - Orange */
  --accent: #E85A1B;
  --accent-light: #FF7A3D;
  --accent-dark: #C94A12;
  --accent-bg: rgba(232, 90, 27, 0.08);

  /* Monochrome Color Palette */
  --black: #0a0a0a;
  --dark-gray: #1a1a1a;
  --gray-800: #2a2a2a;
  --gray-700: #3a3a3a;
  --gray-600: #4a4a4a;
  --gray-500: #6a6a6a;
  --gray-400: #8a8a8a;
  --gray-300: #aaa;
  --gray-200: #d0d0d0;
  --gray-100: #e8e8e8;
  --gray-50: #f7f7f7;
  --white: #ffffff;

  /* Typography */
  --font-main: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", sans-serif;
  --font-heading: "Noto Sans JP", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-english: "Helvetica Neue", Arial, sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;
  --spacing-3xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --content-width: 800px;

  /* Animation */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

body {
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--dark-gray);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  opacity: 1;
}

ul {
  list-style: none;
}

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

/* ----- Container ----- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-narrow {
  max-width: var(--content-width);
}

/* ----- Header ----- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: transparent;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-normal);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--gray-100);
}

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

.header.scrolled .nav-menu a {
  color: var(--gray-600);
}

.header.scrolled .nav-menu a:hover {
  color: var(--black);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-english);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--white);
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition-normal);
}

.logo::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--accent);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-xl);
}

.nav-menu a {
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-normal);
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent);
  transition: width var(--transition-normal);
}

.nav-menu a:hover {
  color: var(--white);
}

.nav-menu a:hover::after {
  width: 100%;
}

.header.scrolled .hamburger span {
  background-color: var(--black);
}

.header-link {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--white);
  background-color: var(--accent);
  padding: 0.6rem 1.5rem;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.header-link:hover {
  background-color: var(--accent-dark);
  transform: translateY(-1px);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--white);
  transition: all var(--transition-normal);
}

.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(6px, -6px);
}

/* Mobile Navigation */
.mobile-nav {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--white);
  padding: var(--spacing-lg);
  border-top: 1px solid var(--gray-100);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.mobile-nav.active {
  display: block;
}

.mobile-nav .nav-menu {
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-nav .nav-menu a::after {
  display: none;
}

/* ----- Hero Section - Dark Style ----- */
.hero-dark {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-color: var(--black);
}

.hero-dark-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(232, 90, 27, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 255, 255, 0.03) 0%, transparent 40%),
    linear-gradient(180deg, var(--black) 0%, #1a1a1a 100%);
  pointer-events: none;
}

.hero-dark-content {
  text-align: center;
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.hero-dark-label {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: var(--spacing-xl);
}

.hero-dark-title {
  margin-bottom: var(--spacing-lg);
}

.hero-dark-title-main {
  display: block;
  font-family: var(--font-english);
  font-size: 5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
  line-height: 1.1;
}

.hero-dark-title-accent {
  display: block;
  font-family: var(--font-english);
  font-size: 5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  line-height: 1.1;
}

.hero-dark-subtitle {
  font-size: 1.25rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.1em;
}

.hero-dark-description {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 2;
  margin-bottom: var(--spacing-xl);
}

.hero-dark-cta {
  display: inline-block;
  padding: 1rem 3rem;
  background-color: var(--accent);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: 0;
  transition: all var(--transition-fast);
}

.hero-dark-cta:hover {
  background-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(232, 90, 27, 0.3);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
}

.hero-scroll-indicator span {
  font-family: var(--font-english);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: rgba(255, 255, 255, 0.4);
  text-transform: uppercase;
}

.hero-scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ----- FOUNDER Section ----- */
.founder-section {
  background-color: #1a1a1a;
  position: relative;
  overflow: hidden;
  padding: var(--spacing-3xl) 0;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.founder-bg-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-english);
  font-size: 18vw;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.03);
  letter-spacing: -0.02em;
  white-space: nowrap;
  pointer-events: none;
  z-index: 0;
}

.founder-content {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.founder-photo {
  position: relative;
}

.founder-photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.2);
  font-size: 1rem;
  letter-spacing: 0.1em;
}

.founder-text {
  color: var(--white);
}

.founder-quote-mark {
  font-family: Georgia, serif;
  font-size: 5rem;
  color: rgba(255, 255, 255, 0.15);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.founder-quote {
  font-size: 1.75rem;
  font-weight: 500;
  line-height: 1.8;
  color: var(--white);
  margin-bottom: var(--spacing-xl);
}

.founder-info {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.founder-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.founder-name-en {
  font-family: var(--font-english);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--spacing-xs);
}

.founder-role {
  font-size: 0.9rem;
  color: var(--accent);
}

.founder-message p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 2;
}

/* Legacy Hero (keep for fallback) */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 50%, var(--gray-50) 100%);
  position: relative;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ----- Section Common ----- */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  margin-bottom: var(--spacing-2xl);
}

.section-label {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.section-label::before {
  content: '';
  display: block;
  width: 30px;
  height: 2px;
  background-color: var(--accent);
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--black);
  letter-spacing: 0.02em;
}

.section-title-en {
  font-family: var(--font-english);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-top: var(--spacing-sm);
}

.section-gray {
  background-color: var(--gray-50);
}

/* ----- Business Section ----- */
.business-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.business-item {
  padding: var(--spacing-xl);
  background-color: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.business-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background-color: var(--accent);
  transition: height var(--transition-normal);
}

.section-gray .business-item {
  background-color: var(--white);
}

.business-item:hover {
  border-color: var(--gray-200);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.business-item:hover::before {
  height: 100%;
}

.business-number {
  font-family: var(--font-english);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--accent);
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

.business-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-sm);
}

.business-description {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.9;
}

/* ----- Company Info Section ----- */
.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table tr {
  border-bottom: 1px solid var(--gray-100);
  transition: background-color var(--transition-fast);
}

.company-table tr:hover {
  background-color: var(--gray-50);
}

.company-table th,
.company-table td {
  padding: var(--spacing-md) var(--spacing-sm);
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 30%;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--black);
  letter-spacing: 0.03em;
  position: relative;
  padding-left: var(--spacing-md);
}

.company-table th::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--accent);
  border-radius: 50%;
}

.company-table td {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 1.8;
}

/* ----- Message Section ----- */
.message-content {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
}

.message-photo {
  width: 100%;
  aspect-ratio: 1;
  background-color: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.8rem;
  position: relative;
  overflow: hidden;
}

.message-photo::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--accent);
}

.message-text h3 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
  position: relative;
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--accent);
}

.message-text .name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-100);
}

.message-text .name span {
  font-family: var(--font-english);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--gray-400);
  margin-left: var(--spacing-sm);
}

.message-text p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 2;
  margin-bottom: var(--spacing-md);
}

/* ----- Footer ----- */
.footer {
  background-color: var(--black);
  color: var(--white);
  padding: var(--spacing-2xl) 0;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  font-family: var(--font-english);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a {
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--gray-400);
  transition: color var(--transition-fast);
  position: relative;
}

.footer-links a:hover {
  color: var(--accent-light);
}

.footer-copyright {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--gray-800);
  text-align: center;
  font-size: 0.75rem;
  color: var(--gray-500);
  letter-spacing: 0.05em;
}

/* ----- Back to Service Link ----- */
.back-to-service {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background-color: var(--accent);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 0.8rem;
  font-weight: 600;
  box-shadow: 0 4px 20px rgba(232, 90, 27, 0.3);
  transition: all var(--transition-fast);
  z-index: 100;
  border-radius: 2px;
}

.back-to-service:hover {
  background-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(232, 90, 27, 0.4);
}

/* ===================================
   Responsive Design
   =================================== */

/* Tablet */
@media (max-width: 1024px) {
  .business-grid {
    grid-template-columns: 1fr;
  }

  .message-content {
    grid-template-columns: 220px 1fr;
    gap: var(--spacing-xl);
  }

  .hero-subtitle::before,
  .hero-subtitle::after {
    width: 25px;
  }

  .hero-subtitle::before {
    right: calc(100% + 12px);
  }

  .hero-subtitle::after {
    left: calc(100% + 12px);
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --spacing-2xl: 4rem;
    --spacing-3xl: 5rem;
  }

  .header-inner {
    height: 60px;
  }

  .nav-menu,
  .header-link {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .logo::after {
    height: 2px;
    bottom: -2px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.75rem;
  }

  .hero-subtitle::before,
  .hero-subtitle::after {
    display: none;
  }

  .hero-description {
    font-size: 0.9rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .message-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .message-text h3 {
    padding-left: 0;
    border-left: none;
    text-align: center;
  }

  .message-text h3::before {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background-color: var(--accent);
    margin: 0 auto var(--spacing-md);
  }

  .message-photo {
    max-width: 200px;
    margin: 0 auto var(--spacing-lg);
  }

  .company-table th,
  .company-table td {
    display: block;
    width: 100%;
  }

  .company-table th {
    padding-bottom: var(--spacing-xs);
    border-bottom: none;
  }

  .company-table td {
    padding-top: 0;
    padding-bottom: var(--spacing-md);
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }

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

  .back-to-service {
    bottom: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
  }

  .section-label::before {
    width: 20px;
  }
}

/* Small Mobile */
@media (max-width: 480px) {
  :root {
    --spacing-lg: 1.5rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .business-item {
    padding: var(--spacing-md);
  }

  .business-number {
    font-size: 1.5rem;
  }
}

/* ===================================
   New Components for Consulting Site
   =================================== */

/* ----- Header CTA Button ----- */
.header-cta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--white);
  background-color: var(--accent);
  padding: 0.6rem 1.5rem;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.header-cta:hover {
  background-color: var(--accent-dark);
  transform: translateY(-1px);
}

/* ----- Hero Stats ----- */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2xl);
  margin: var(--spacing-xl) 0;
  padding: var(--spacing-lg) 0;
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  display: block;
  font-family: var(--font-english);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.hero-stat-number small {
  font-size: 1.25rem;
  margin-left: 2px;
}

.hero-stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-top: var(--spacing-xs);
}

/* ----- Hero CTA Group ----- */
.hero-cta-group {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.btn-primary-lg {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: var(--accent);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.btn-primary-lg:hover {
  background-color: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(232, 90, 27, 0.3);
}

.btn-outline-lg {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: transparent;
  color: var(--gray-600);
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid var(--gray-300);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

.btn-outline {
  display: inline-block;
  padding: 0.75rem 2rem;
  background-color: transparent;
  color: var(--gray-600);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid var(--gray-300);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

.btn-white-lg {
  display: inline-block;
  padding: 1rem 2.5rem;
  background-color: var(--white);
  color: var(--black);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.btn-white-lg:hover {
  background-color: var(--gray-100);
}

/* ----- Authority Banner ----- */
.authority-banner {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.03);
  padding: var(--spacing-md) 0;
}

.authority-label {
  font-family: var(--font-english);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.authority-logos {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xl);
}

.authority-item {
  font-size: 0.8rem;
  color: var(--gray-500);
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: var(--white);
  border: 1px solid var(--gray-200);
}

/* ----- Trust Section / Logo Slider ----- */
.trust-section {
  padding: var(--spacing-xl) 0;
  background-color: var(--gray-50);
  overflow: hidden;
}

.trust-label {
  font-family: var(--font-english);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--gray-400);
  text-transform: uppercase;
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.logo-slider {
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 10%, black 90%, transparent);
}

.logo-track {
  display: flex;
  gap: var(--spacing-xl);
  animation: slide 30s linear infinite;
}

@keyframes slide {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.client-logo {
  flex-shrink: 0;
  width: 120px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  font-size: 0.7rem;
  color: var(--gray-400);
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all var(--transition-normal);
}

.client-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* ----- Section Header Center ----- */
.section-header-center {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-label-center {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.section-title-center {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: 1rem;
  color: var(--gray-500);
  line-height: 1.8;
}

.section-cta {
  text-align: center;
  margin-top: var(--spacing-xl);
}

/* ----- Service Grid ----- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.service-card {
  padding: var(--spacing-xl);
  background-color: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-normal);
  position: relative;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.service-card:hover {
  border-color: var(--gray-200);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-bg);
  color: var(--accent);
  border-radius: 4px;
  margin-bottom: var(--spacing-md);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-sm);
}

.service-description {
  font-size: 0.9rem;
  color: var(--gray-500);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.service-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.service-link:hover {
  color: var(--accent-dark);
}

/* ----- Case Study Grid ----- */
.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.case-card {
  padding: var(--spacing-lg);
  background-color: var(--white);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-normal);
}

.case-card:hover {
  border-color: var(--gray-200);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.case-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  background-color: var(--accent-bg);
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  margin-bottom: var(--spacing-sm);
}

.case-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-xs);
}

.case-description {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-bottom: var(--spacing-md);
}

.case-result {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--gray-50);
  border-radius: 4px;
  margin-bottom: var(--spacing-sm);
}

.case-before,
.case-after {
  flex: 1;
  text-align: center;
}

.case-metric-label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.case-metric-value {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--black);
}

.case-arrow {
  font-size: 1.25rem;
  color: var(--accent);
}

.case-improvement {
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

/* ----- Profile Section ----- */
.profile-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: var(--spacing-2xl);
  align-items: start;
  margin-bottom: var(--spacing-2xl);
}

.profile-photo {
  width: 100%;
}

.profile-photo-placeholder {
  width: 100%;
  aspect-ratio: 1;
  background-color: var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  font-size: 0.9rem;
  position: relative;
}

.profile-photo-placeholder::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background-color: var(--accent);
}

.profile-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-xs);
}

.profile-name span {
  font-family: var(--font-english);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--gray-400);
  margin-left: var(--spacing-sm);
}

.profile-title {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--gray-100);
}

.profile-message h3 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-md);
  border-left: 3px solid var(--accent);
}

.profile-message p {
  font-size: 0.95rem;
  color: var(--gray-600);
  line-height: 2;
  margin-bottom: var(--spacing-md);
}

/* ----- Company Info Box ----- */
.company-info-box {
  padding: var(--spacing-xl);
  background-color: var(--gray-50);
  border-radius: 4px;
}

.company-info-box h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--gray-200);
}

/* ----- CTA Section ----- */
.cta-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, var(--black) 0%, var(--gray-800) 100%);
  text-align: center;
}

.cta-content {
  max-width: 700px;
  margin: 0 auto;
}

.cta-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1rem;
  color: var(--gray-300);
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.cta-note {
  font-size: 0.8rem;
  color: var(--gray-500);
}

/* ----- Footer (Updated) ----- */
.footer-main {
  display: flex;
  justify-content: space-between;
  padding-bottom: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--gray-800);
}

.footer-brand {
  max-width: 300px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-top: var(--spacing-sm);
}

.footer-nav {
  display: flex;
  gap: var(--spacing-2xl);
}

.footer-nav-group h4 {
  font-family: var(--font-english);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
}

.footer-nav-group a {
  display: block;
  font-size: 0.85rem;
  color: var(--gray-400);
  margin-bottom: var(--spacing-xs);
}

.footer-nav-group a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  text-align: center;
}

/* ----- Sticky CTA (Mobile) ----- */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-sm);
  background-color: var(--white);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
  z-index: 900;
  transition: opacity var(--transition-normal);
}

.sticky-cta-button {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--accent);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: 4px;
}

/* ----- Responsive Updates ----- */
@media (max-width: 1024px) {
  .service-grid {
    grid-template-columns: 1fr;
  }

  .case-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .profile-content {
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-xl);
  }

  .footer-nav {
    gap: var(--spacing-xl);
  }

  /* Founder section tablet */
  .founder-content {
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
  }

  .founder-quote {
    font-size: 1.5rem;
  }

  .hero-dark-title-main,
  .hero-dark-title-accent {
    font-size: 4rem;
  }
}

@media (max-width: 768px) {
  .header-cta {
    display: none;
  }

  /* Dark Hero mobile */
  .hero-dark-title-main,
  .hero-dark-title-accent {
    font-size: 2.5rem;
  }

  .hero-dark-subtitle {
    font-size: 1rem;
  }

  .hero-dark-description {
    font-size: 0.85rem;
  }

  .hero-dark-cta {
    padding: 0.875rem 2rem;
    font-size: 0.85rem;
  }

  /* Founder section mobile */
  .founder-section {
    min-height: auto;
    padding: var(--spacing-2xl) 0;
  }

  .founder-bg-text {
    font-size: 25vw;
  }

  .founder-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .founder-photo {
    max-width: 280px;
    margin: 0 auto var(--spacing-xl);
  }

  .founder-quote-mark {
    font-size: 3rem;
  }

  .founder-quote {
    font-size: 1.25rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--spacing-lg);
  }

  .hero-stat-number {
    font-size: 2.5rem;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary-lg,
  .btn-outline-lg {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .authority-banner {
    position: relative;
    margin-top: var(--spacing-xl);
  }

  .authority-logos {
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }

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

  .profile-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .profile-photo {
    max-width: 200px;
    margin: 0 auto;
  }

  .profile-message h3 {
    padding-left: 0;
    border-left: none;
    text-align: center;
  }

  .profile-message h3::before {
    content: '';
    display: block;
    width: 40px;
    height: 3px;
    background-color: var(--accent);
    margin: 0 auto var(--spacing-md);
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn-primary-lg,
  .btn-white-lg {
    width: 100%;
    max-width: 300px;
  }

  .footer-main {
    flex-direction: column;
    gap: var(--spacing-xl);
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: var(--spacing-lg);
  }

  .footer-nav-group {
    min-width: 140px;
  }

  .sticky-cta {
    display: block;
  }
}

@media (max-width: 480px) {
  .hero-stat-number {
    font-size: 2rem;
  }

  .service-card {
    padding: var(--spacing-md);
  }

  .case-card {
    padding: var(--spacing-md);
  }

  .case-result {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .case-arrow {
    transform: rotate(90deg);
  }

  .cta-title {
    font-size: 1.5rem;
  }
}