/**
 * NobleAIWork Common CSS
 * 공통 스타일 및 유틸리티
 * Created: 2025-01-24
 */

/* ========================================
   Import Core Styles
   ======================================== */
@import url('./variables.css');
@import url('./reset.css');
@import url('./layout.css');
@import url('./components.css');

/* ========================================
   Common Typography
   ======================================== */
.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-black);
  color: var(--noble-navy);
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-lg);
  font-family: var(--font-heading);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--noble-gray-600);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-2xl);
}

.page-title {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--noble-navy);
  margin-bottom: var(--spacing-md);
}

.page-subtitle {
  font-size: var(--font-size-lg);
  color: var(--noble-gray-600);
  margin-bottom: var(--spacing-2xl);
}

/* Text with Gold Accent */
.text-gold {
  color: var(--noble-gold);
}

.text-navy {
  color: var(--noble-navy);
}

.text-ai {
  color: var(--ai-blue);
}

/* Gradient Text */
.gradient-text {
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-gold {
  background: linear-gradient(135deg, var(--noble-gold) 0%, var(--noble-gold-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  position: relative;
  padding: var(--spacing-5xl) 0;
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  color: var(--noble-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('/images/hero/pattern.svg') no-repeat center;
  background-size: cover;
  opacity: 0.1;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.hero-light {
  background: var(--noble-light-gray);
  color: var(--noble-navy);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-2xl);
}

/* ========================================
   Feature Cards
   ======================================== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

.feature-card {
  background: var(--noble-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  text-align: center;
  transition: all var(--transition-base);
  border: 1px solid var(--noble-gray-100);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

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

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--noble-white);
  font-size: 36px;
  transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
  transform: rotate(10deg) scale(1.1);
  background: linear-gradient(135deg, var(--noble-gold) 0%, var(--noble-gold-light) 100%);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--noble-navy);
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--noble-gray-600);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   Service Cards
   ======================================== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--spacing-2xl);
}

.service-card {
  background: var(--noble-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-md);
  position: relative;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-2xl);
}

.service-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.service-content {
  padding: var(--spacing-xl);
}

.service-badge {
  display: inline-block;
  padding: var(--spacing-xxs) var(--spacing-sm);
  background: var(--noble-gold);
  color: var(--noble-navy);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.service-title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--noble-navy);
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--noble-gray-600);
  margin-bottom: var(--spacing-lg);
  line-height: var(--line-height-relaxed);
}

.service-features {
  list-style: none;
  margin: 0 0 var(--spacing-lg) 0;
  padding: 0;
}

.service-features li {
  padding: var(--spacing-xs) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--noble-gray-700);
}

.service-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--noble-gold);
  font-weight: var(--font-weight-bold);
}

/* ========================================
   Stats Section
   ======================================== */
.stats-section {
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  padding: var(--spacing-4xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-2xl);
  text-align: center;
}

.stat-item {
  color: var(--noble-white);
}

.stat-number {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  font-family: var(--font-heading);
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--noble-gold);
}

.stat-label {
  font-size: var(--font-size-base);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wider);
  opacity: 0.9;
}

/* ========================================
   Timeline
   ======================================== */
.timeline {
  position: relative;
  padding: var(--spacing-2xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  background: var(--noble-gray-200);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  padding: var(--spacing-xl) 0;
}

.timeline-marker {
  position: absolute;
  top: var(--spacing-xl);
  left: 50%;
  width: 20px;
  height: 20px;
  background: var(--noble-gold);
  border: 4px solid var(--noble-white);
  border-radius: var(--radius-full);
  transform: translateX(-50%);
  box-shadow: var(--shadow-md);
}

.timeline-content {
  width: calc(50% - var(--spacing-2xl));
  padding: var(--spacing-lg);
  background: var(--noble-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: auto;
}

.timeline-date {
  font-size: var(--font-size-sm);
  color: var(--noble-gold);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-xs);
}

.timeline-title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--noble-navy);
  margin-bottom: var(--spacing-xs);
}

.timeline-description {
  color: var(--noble-gray-600);
  line-height: var(--line-height-relaxed);
}

/* ========================================
   CTA Section
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  padding: var(--spacing-4xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: rotate 30s linear infinite;
}

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

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

.cta-title {
  font-size: var(--font-size-3xl);
  font-weight: var(--font-weight-bold);
  color: var(--noble-white);
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-2xl);
}

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

/* ========================================
   Partner Logos
   ======================================== */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--spacing-xl);
  align-items: center;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  background: var(--noble-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  filter: grayscale(100%);
  opacity: 0.7;
}

.partner-logo:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.partner-logo img {
  max-width: 100%;
  height: auto;
}

/* ========================================
   Testimonials
   ======================================== */
.testimonial {
  background: var(--noble-white);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  position: relative;
}

.testimonial::before {
  content: '"';
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-lg);
  font-size: var(--font-size-5xl);
  color: var(--noble-gold);
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-content {
  font-size: var(--font-size-lg);
  color: var(--noble-gray-700);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-2xl);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.testimonial-info {
  flex: 1;
}

.testimonial-name {
  font-weight: var(--font-weight-bold);
  color: var(--noble-navy);
  display: block;
}

.testimonial-role {
  font-size: var(--font-size-sm);
  color: var(--noble-gray-500);
}

/* ========================================
   Animations
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all var(--transition-slow);
}

.slide-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all var(--transition-slow);
}

.slide-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scale-in {
  opacity: 0;
  transform: scale(0.8);
  transition: all var(--transition-slow);
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ========================================
   Utility Classes
   ======================================== */
.bg-light {
  background: var(--noble-light-gray);
}

.bg-white {
  background: var(--noble-white);
}

.bg-navy {
  background: var(--noble-navy);
  color: var(--noble-white);
}

.bg-gradient {
  background: linear-gradient(135deg, var(--noble-navy) 0%, var(--ai-blue) 100%);
  color: var(--noble-white);
}

.shadow-sm {
  box-shadow: var(--shadow-sm);
}

.shadow-md {
  box-shadow: var(--shadow-md);
}

.shadow-lg {
  box-shadow: var(--shadow-lg);
}

.shadow-xl {
  box-shadow: var(--shadow-xl);
}

.rounded {
  border-radius: var(--radius-md);
}

.rounded-lg {
  border-radius: var(--radius-lg);
}

.rounded-xl {
  border-radius: var(--radius-xl);
}

.rounded-full {
  border-radius: var(--radius-full);
}

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.font-bold {
  font-weight: var(--font-weight-bold);
}

.font-semibold {
  font-weight: var(--font-weight-semibold);
}

.uppercase {
  text-transform: uppercase;
}

.capitalize {
  text-transform: capitalize;
}

/* Spacing Utilities */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.py-0 { padding-top: 0; padding-bottom: 0; }
.py-1 { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-2 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-3 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-4 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-5 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-0 { padding-left: 0; padding-right: 0; }
.px-1 { padding-left: var(--spacing-xs); padding-right: var(--spacing-xs); }
.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-5 { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }