/* ========================================
   Office T2 - Static Site Stylesheet
   ConoHa WING対応 静的サイト用CSS
   ======================================== */

/* ----------------------------------------
   CSS Variables
   ---------------------------------------- */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-secondary: #8b5cf6;
  --color-accent: #ec4899;
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --gradient-soft: linear-gradient(180deg, rgba(99, 102, 241, 0.03) 0%, rgba(139, 92, 246, 0.03) 50%, rgba(236, 72, 153, 0.03) 100%);
  
  /* Typography */
  --font-sans: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "BIZ UDPGothic", "Yu Gothic", "Meiryo", sans-serif;
  --font-display: "Hiragino Kaku Gothic ProN", "Hiragino Sans", sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
  
  /* Z-index */
  --z-header: 100;
  --z-modal: 200;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

/* ----------------------------------------
   Utility Classes
   ---------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

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

/* ----------------------------------------
   Animations
   ---------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.05); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ----------------------------------------
   Header
   ---------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background: rgba(250, 250, 250, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229, 231, 235, 0.5);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

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

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--spacing-sm) 0;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link:hover {
  color: var(--color-text);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

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

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

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 72px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

.hero-orb-1 {
  top: -10%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

.hero-orb-2 {
  bottom: -10%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  animation-delay: 2s;
}

.hero-orb-3 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
  animation-delay: 4s;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: var(--spacing-xl);
  animation: fadeInUp 1s ease forwards;
}

.hero-title {
  font-size: clamp(3rem, 10vw, 5rem);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
  font-size: clamp(1.25rem, 4vw, 2rem);
  color: var(--color-text);
  opacity: 0.9;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease 0.2s forwards;
  opacity: 0;
}

.hero-description {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: var(--color-text-muted);
  animation: fadeInUp 1s ease 0.4s forwards;
  opacity: 0;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-2xl);
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 2s ease-in-out infinite;
}

.scroll-icon {
  width: 40px;
  height: 56px;
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  background: linear-gradient(var(--color-background), var(--color-background)) padding-box,
              var(--gradient-primary) border-box;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-icon svg {
  color: var(--color-primary);
  animation: pulse 2s ease-in-out infinite;
}

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

.section-bg-soft {
  position: absolute;
  inset: 0;
  background: var(--gradient-soft);
  pointer-events: none;
}

.section-title {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-lg);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-2xl);
}

.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 0 auto;
  max-width: 800px;
}

/* ----------------------------------------
   About Section
   ---------------------------------------- */
.about-content {
  max-width: 800px;
}

.about-text {
  font-size: 1.125rem;
  color: rgba(31, 41, 55, 0.8);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

/* ----------------------------------------
   Services Section
   ---------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(99, 102, 241, 0.3);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  color: white;
  margin-bottom: var(--spacing-lg);
}

.service-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

.service-badge {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.service-list {
  margin-bottom: var(--spacing-md);
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.service-list li::before {
  content: '';
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236366f1' stroke-width='2'%3E%3Cpolyline points='9 18 15 12 9 6'/%3E%3C/svg%3E") no-repeat center;
  background-size: contain;
}

.service-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  opacity: 0.7;
  font-style: italic;
}

/* ----------------------------------------
   Approach Section
   ---------------------------------------- */
.approach-bg {
  position: absolute;
  top: 50%;
  right: 0;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.approach-subtitle {
  font-size: 1.75rem;
  color: rgba(31, 41, 55, 0.5);
  font-weight: 300;
  margin-bottom: var(--spacing-2xl);
}

.approach-content {
  max-width: 800px;
}

.approach-text {
  font-size: 1.125rem;
  color: rgba(31, 41, 55, 0.8);
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.approach-highlight {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--color-text);
  margin-top: var(--spacing-2xl);
}

/* ----------------------------------------
   Company Section
   ---------------------------------------- */
.company-info {
  max-width: 600px;
}

.company-item {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.company-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.company-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.company-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.company-list {
  margin-top: var(--spacing-sm);
}

.company-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.125rem;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.company-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gradient-primary);
}

/* ----------------------------------------
   Contact Section
   ---------------------------------------- */
.contact-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.contact-orb {
  position: absolute;
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

.contact-orb-1 {
  top: -20%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
}

.contact-orb-2 {
  bottom: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.1) 0%, transparent 70%);
  animation-delay: 2s;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contact-intro {
  font-size: 1.125rem;
  color: rgba(31, 41, 55, 0.8);
  margin-bottom: var(--spacing-lg);
}

.contact-examples {
  margin-bottom: var(--spacing-lg);
}

.contact-examples li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.contact-examples li::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--gradient-primary);
}

.contact-note {
  font-size: 1.125rem;
  color: rgba(31, 41, 55, 0.8);
  line-height: 1.8;
}

/* Contact Methods */
.contact-methods {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
}

.contact-methods-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xl);
}

.contact-button {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  width: 100%;
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-button-email {
  background: var(--gradient-primary);
  color: white;
}

.contact-button-line {
  background: #06c755;
  color: white;
}

.contact-button-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
}

.contact-button-text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.contact-button-label {
  font-size: 1rem;
  font-weight: 600;
}

.contact-button-address {
  font-size: 0.875rem;
  opacity: 0.9;
}

.contact-methods-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: var(--spacing-md);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-xs);
}

.footer-email {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-email:hover {
  color: var(--color-primary);
}

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

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* ----------------------------------------
   Responsive Design
   ---------------------------------------- */
@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
    border-bottom: 1px solid var(--color-border);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
  }

  .nav-link:last-child {
    border-bottom: none;
  }

  .nav-link::after {
    display: none;
  }

  .hero-title {
    font-size: clamp(2.5rem, 12vw, 4rem);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

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

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

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-content {
    padding: var(--spacing-md);
  }

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

  .contact-methods {
    padding: var(--spacing-lg);
  }

  .contact-button {
    padding: var(--spacing-md);
  }

  .contact-button-icon {
    width: 40px;
    height: 40px;
  }
}

/* ----------------------------------------
   Print Styles
   ---------------------------------------- */
@media print {
  .header,
  .scroll-indicator,
  .hero-bg,
  .contact-bg,
  .approach-bg {
    display: none;
  }

  .hero {
    min-height: auto;
    padding-top: 0;
  }

  .section {
    padding: var(--spacing-lg) 0;
    page-break-inside: avoid;
  }

  .service-card {
    break-inside: avoid;
  }
}