/* ========================================
   RAMSEY - Corporate Website
   AI Technology Design System
   ======================================== */

/* --- CSS Variables --- */
:root {
  --color-bg-primary: #111111;
  --color-bg-secondary: #161616;
  --color-bg-card: #1a1a1a;
  --color-bg-card-hover: #222222;
  --color-text-primary: #f5f0eb;
  --color-text-secondary: #a09890;
  --color-text-muted: #6b6460;
  --color-accent-cyan: #c8a97e;
  --color-accent-purple: #a08060;
  --color-accent-gold: #d4a853;
  --color-accent-cyan-glow: rgba(200, 169, 126, 0.10);
  --color-accent-purple-glow: rgba(160, 128, 96, 0.10);
  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-glow: rgba(200, 169, 126, 0.15);
  --gradient-primary: linear-gradient(135deg, #c8a97e 0%, #a08060 100%);
  --gradient-gold: linear-gradient(135deg, #d4a853 0%, #c49032 100%);
  --gradient-dark: linear-gradient(180deg, #111111 0%, #161616 100%);
  --font-en: 'Inter', sans-serif;
  --font-jp: 'Noto Sans JP', sans-serif;
  --header-height: 80px;
  --section-padding: clamp(80px, 10vw, 140px);
  --container-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-jp);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.8;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

/* Loading screen removed */

/* --- Container --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 40px);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  font-family: var(--font-en);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.header-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.05em;
  position: relative;
  padding-bottom: 4px;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
}

.header-nav a:hover {
  color: var(--color-text-primary);
}

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

.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 28px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-bg-primary);
  background: var(--gradient-primary);
  border-radius: 100px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.header-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 169, 126, 0.3);
}

/* Mobile Menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-text-primary);
  transition: var(--transition-base);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at center, transparent 0%, var(--color-bg-primary) 75%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 20px;
}

.hero-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 24px;
  padding: 6px 20px;
  border: 1px solid rgba(200, 169, 126, 0.3);
  border-radius: 100px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-title .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: 48px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Page Hero (sub pages) */
.page-hero {
  position: relative;
  padding: calc(var(--header-height) + 80px) 0 80px;
  text-align: center;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at top center, rgba(200, 169, 126, 0.08), transparent 60%);
  z-index: 0;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.page-hero-label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 16px;
}

.page-hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-jp);
  border-radius: 100px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
}

.btn-primary {
  color: var(--color-bg-primary);
  background: var(--gradient-primary);
  box-shadow: 0 4px 20px rgba(200, 169, 126, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(200, 169, 126, 0.35);
}

.btn-outline {
  color: var(--color-text-primary);
  background: transparent;
  border: 1px solid var(--color-border-glow);
}

.btn-outline:hover {
  background: var(--color-accent-cyan-glow);
  border-color: var(--color-accent-cyan);
  transform: translateY(-3px);
}

.btn-gold {
  color: var(--color-bg-primary);
  background: var(--gradient-gold);
  box-shadow: 0 4px 20px rgba(212, 168, 83, 0.2);
}

.btn-gold:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(212, 168, 83, 0.35);
}

.btn-arrow::after {
  content: '\2192';
  font-size: 1.2em;
  transition: transform var(--transition-base);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* --- Section Common --- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-label {
  font-family: var(--font-en);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  max-width: 640px;
}

.section-header {
  margin-bottom: 60px;
}

.section-header.center {
  text-align: center;
}

.section-header.center .section-description {
  margin-left: auto;
  margin-right: auto;
}

/* Section Divider */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border-glow), transparent);
}

/* --- About Section --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
  max-width: 520px;
  margin: 0 auto;
}

.about-visual-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--color-border-glow);
  animation: ringRotate 20s linear infinite;
}

.about-visual-ring:nth-child(1) {
  top: 10%; left: 10%; right: 10%; bottom: 10%;
}

.about-visual-ring:nth-child(2) {
  top: 25%; left: 25%; right: 25%; bottom: 25%;
  animation-direction: reverse;
  animation-duration: 15s;
}

.about-visual-ring:nth-child(3) {
  top: 38%; left: 38%; right: 38%; bottom: 38%;
  animation-duration: 10s;
}

.about-visual-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-en);
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@keyframes ringRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.about-text p {
  color: var(--color-text-secondary);
  line-height: 2;
  margin-bottom: 24px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  font-size: 0.9rem;
  font-weight: 500;
}

.about-feature-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent-cyan);
  flex-shrink: 0;
}

/* --- Service Cards --- */
.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  position: relative;
  padding: 48px 36px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  overflow: hidden;
}

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

.service-card:hover {
  border-color: var(--color-border-glow);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 40px var(--color-accent-cyan-glow);
}

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

.service-card-number {
  font-family: var(--font-en);
  font-size: 3.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.2;
  line-height: 1;
  margin-bottom: 20px;
}

.service-card-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 8px;
}

.service-card-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-card-subtitle {
  font-size: 0.9rem;
  color: var(--color-accent-purple);
  font-weight: 600;
  margin-bottom: 20px;
}

.service-card-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 24px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-cyan);
  transition: gap var(--transition-base);
}

.service-card-link:hover {
  gap: 14px;
}

/* --- Stats Section --- */
.stats {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  text-align: center;
}

.stat-item {
  padding: 20px 0;
}

.stat-number {
  font-family: var(--font-en);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-suffix {
  font-size: 0.5em;
  opacity: 0.8;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: 8px;
}

/* --- Reason Cards (Why RAMSEY) --- */
.reason-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.reason-card {
  padding: 36px 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.reason-card:hover {
  border-color: var(--color-border-glow);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.reason-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-cyan-glow);
  border-radius: var(--radius-sm);
  color: var(--color-accent-cyan);
  margin-bottom: 20px;
}

.reason-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.reason-text {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --- Industry Tags --- */
.industry-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

.industry-tag {
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  transition: all var(--transition-base);
}

.industry-tag:hover {
  color: var(--color-text-primary);
  border-color: var(--color-accent-cyan);
  background: var(--color-accent-cyan-glow);
}

/* --- Image Sections --- */
.img-block {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

.img-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 1024px) {
  .reason-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .reason-grid {
    grid-template-columns: 1fr;
  }
}

/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 12px;
  padding-left: 28px;
  position: relative;
}

.faq-question::before {
  content: 'Q';
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--color-accent-cyan);
}

.faq-answer {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.9;
  padding-left: 28px;
}

/* --- CTA Section --- */
.cta-section {
  text-align: center;
  position: relative;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-cyan-glow), transparent 70%);
  z-index: 0;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-box {
  padding: 80px 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-glow);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at top, var(--color-accent-cyan-glow), transparent 60%);
  z-index: 0;
}

.cta-box > * {
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  margin-bottom: 16px;
}

.cta-description {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: 40px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Service Detail (service.html) --- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 80px 0;
}

.service-detail:nth-child(even) {
  direction: rtl;
}

.service-detail:nth-child(even) > * {
  direction: ltr;
}

.service-detail-visual {
  position: relative;
  padding: 48px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.service-detail-icon {
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-cyan-glow);
  border: 1px solid var(--color-border-glow);
  border-radius: var(--radius-md);
  font-size: 2rem;
  margin-bottom: 24px;
}

.service-detail-en {
  font-family: var(--font-en);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-cyan);
  margin-bottom: 8px;
}

.service-detail-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-detail-subtitle {
  font-size: 1rem;
  color: var(--color-accent-purple);
  font-weight: 600;
  margin-bottom: 24px;
}

.service-detail-text {
  color: var(--color-text-secondary);
  line-height: 2;
  margin-bottom: 32px;
}

.service-detail-features {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.service-detail-feature {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.95rem;
}

.service-detail-feature-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-cyan-glow);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-accent-cyan);
  font-size: 0.75rem;
}

/* --- Flow Section --- */
.flow-timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding-top: 40px;
}

.flow-timeline::before {
  content: '';
  position: absolute;
  top: 70px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-cyan), var(--color-accent-purple));
}

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

.flow-step-number {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-primary);
  border: 2px solid var(--color-accent-cyan);
  border-radius: 50%;
  font-family: var(--font-en);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent-cyan);
  margin-bottom: 20px;
  transition: all var(--transition-base);
}

.flow-step:hover .flow-step-number {
  background: var(--color-accent-cyan);
  color: var(--color-bg-primary);
  box-shadow: 0 0 30px rgba(200, 169, 126, 0.4);
}

.flow-step-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.flow-step-text {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  max-width: 160px;
}

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

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

.company-table tr:hover {
  background: rgba(200, 169, 126, 0.03);
}

.company-table th,
.company-table td {
  padding: 24px 20px;
  text-align: left;
  vertical-align: top;
}

.company-table th {
  width: 200px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-accent-cyan);
  white-space: nowrap;
}

.company-table td {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* --- Message Section --- */
.message-section {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.message-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.message-quote {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 500;
  line-height: 2;
  margin-bottom: 32px;
  position: relative;
}

.message-quote::before {
  content: '\201C';
  position: absolute;
  top: -40px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 6rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.2;
  line-height: 1;
}

.message-name {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.message-role {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}

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

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}

.form-label .required {
  font-size: 0.75rem;
  color: var(--color-accent-gold);
  margin-left: 8px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  font-size: 1rem;
  font-family: var(--font-jp);
  color: var(--color-text-primary);
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent-cyan);
  box-shadow: 0 0 0 3px var(--color-accent-cyan-glow);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%238892a8' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-textarea {
  min-height: 160px;
  resize: vertical;
}

.form-error {
  font-size: 0.8rem;
  color: #ff4757;
  margin-top: 6px;
  display: none;
}

.form-group.error .form-error {
  display: block;
}

.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .form-textarea {
  border-color: #ff4757;
}

/* Contact Info Card */
.contact-info-card {
  padding: 40px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  position: sticky;
  top: calc(var(--header-height) + 40px);
}

.contact-info-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-cyan-glow);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  color: var(--color-accent-cyan);
  font-size: 1.1rem;
}

.contact-info-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.contact-info-value {
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

/* --- Footer --- */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--color-border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 48px;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  max-width: 300px;
}

.footer-nav {
  display: flex;
  gap: 48px;
}

.footer-nav-group h4 {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-primary);
  margin-bottom: 16px;
}

.footer-nav-group a {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  padding: 4px 0;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Scroll Animation --- */
.js-ready .fade-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.js-ready .fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }

/* --- Grid Background --- */
.grid-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 60px 60px;
  opacity: 0.3;
  z-index: 0;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-visual {
    max-width: 320px;
  }

  .service-cards {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

  .service-detail {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .service-detail:nth-child(even) {
    direction: ltr;
  }

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

  .footer-top {
    flex-direction: column;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .menu-toggle {
    display: flex;
  }

  .header-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 32px;
    padding: 40px;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    transition: right var(--transition-base);
  }

  .header-nav.open {
    right: 0;
  }

  .header-nav a {
    font-size: 1.1rem;
  }

  .hero {
    min-height: 90vh;
  }

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

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

  .flow-timeline {
    flex-direction: column;
    gap: 32px;
    padding-left: 40px;
  }

  .flow-timeline::before {
    top: 0;
    bottom: 0;
    left: 29px;
    right: auto;
    width: 2px;
    height: auto;
  }

  .flow-step {
    flex-direction: row;
    text-align: left;
    gap: 20px;
  }

  .flow-step-number {
    width: 48px;
    height: 48px;
    font-size: 1rem;
    flex-shrink: 0;
    margin-bottom: 0;
  }

  .company-table th {
    width: 120px;
    padding: 16px 12px;
    font-size: 0.85rem;
  }

  .company-table td {
    padding: 16px 12px;
    font-size: 0.9rem;
  }

  .footer-nav {
    flex-direction: column;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Mobile Menu Overlay --- */
.menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.menu-overlay.active {
  opacity: 1;
  visibility: visible;
}