/*
 * 메인 스타일시트 - ainudes.lifestyle
 * 한국어 SEO 최적화 웹사이트
 */

:root {
  --primary: #22C55E;     /* 그린 */
  --secondary: #A855F7;   /* 퍼플 */
  --dark: #111827;
  --light: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  --transition: all 0.3s ease;
}

/* 리셋 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Sans KR', sans-serif;
  background-color: var(--light);
  color: var(--gray-700);
  line-height: 1.7;
  min-height: 100vh;
}

.wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 타이포그래피 */
h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 700;
  line-height: 1.3;
}

h1 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
}

h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
  color: var(--gray-600);
}

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

a:hover {
  color: var(--secondary);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.gradient-text {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

/* 헤더 스타일 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo span {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-list a {
  color: var(--gray-700);
  font-weight: 500;
  position: relative;
  padding-bottom: 0.25rem;
}

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

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background-color: var(--gray-700);
  border-radius: 2px;
  transition: var(--transition);
}

/* 버튼 스타일 */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  text-align: center;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(to right, var(--primary), var(--secondary));
  color: white;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: white;
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right, rgba(255,255,255,0.2), rgba(255,255,255,0));
  transform: skewX(-25deg);
  transition: var(--transition);
}

.btn-primary:hover::after {
  left: 100%;
}

/* 히어로 섹션 */
.hero {
  position: relative;
  padding: 10rem 0 6rem;
  background-color: var(--light);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  max-width: 540px;
}

.hero-content p {
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
}

.hero-visual {
  position: relative;
  text-align: center;
}

.curve-divider {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.curve-divider svg {
  position: relative;
  display: block;
  width: 100%;
  height: 120px;
  transform: rotateY(180deg);
}

.curve-divider.reverse {
  bottom: auto;
  top: -2px;
}

.curve-divider svg path {
  fill: white;
}

.curve-divider.reverse svg path {
  fill: white;
}

/* 특징 섹션 */
.features {
  padding: 6rem 0;
  background-color: white;
  position: relative;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  padding: 2.5rem;
  border-radius: 12px;
  background-color: var(--gray-100);
  text-align: center;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  margin-bottom: 1.5rem;
}

/* 프로세스 섹션 */
.process {
  position: relative;
  padding: 6rem 0;
  background-color: white;
}

.process-steps {
  max-width: 768px;
  margin: 0 auto 3rem;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 3rem;
}

.step:last-child {
  margin-bottom: 0;
}

.step-number {
  flex-shrink: 0;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: var(--shadow-md);
}

.step-content {
  flex: 1;
  padding-top: 0.5rem;
}

.cta {
  text-align: center;
  margin-top: 3rem;
}

/* 소개 섹션 */
.about {
  padding: 6rem 0;
  background-color: var(--light);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.benefit-card {
  padding: 2rem;
  background-color: white;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.benefit-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.benefit-card h3 {
  margin-bottom: 1rem;
  color: var(--primary);
}

.benefit-card p {
  margin-bottom: 0;
}

/* 푸터 */
.footer {
  background-color: var(--dark);
  color: white;
  padding: 5rem 0 2rem;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 3rem;
  margin-bottom: 3rem;
}

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

.footer-branding .logo span {
  color: white;
}

.footer-branding p {
  color: var(--gray-400);
  margin-top: 1rem;
}

.footer-links {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
}

.link-group h4 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
  position: relative;
}

.link-group h4::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 40px;
  height: 2px;
  background: linear-gradient(to right, var(--primary), var(--secondary));
}

.link-group ul {
  list-style: none;
}

.link-group ul li {
  margin-bottom: 1rem;
}

.link-group ul li a {
  color: var(--gray-400);
  transition: var(--transition);
}

.link-group ul li a:hover {
  color: var(--gray-200);
}

.copyright {
  padding-top: 2rem;
  border-top: 1px solid var(--gray-700);
  text-align: center;
}

.copyright p {
  color: var(--gray-400);
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* 반응형 디자인 */
@media (max-width: 992px) {
  h1 {
    font-size: 2.2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .hero-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-content {
    max-width: 100%;
    text-align: center;
  }
  
  .hero-buttons {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 300px;
    height: 100vh;
    background: white;
    padding: 6rem 2rem 2rem;
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
    z-index: 900;
  }
  
  .nav.active {
    right: 0;
  }
  
  .nav-list {
    flex-direction: column;
    gap: 1.5rem;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .step {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
  }
  
  .footer-branding {
    max-width: 100%;
    text-align: center;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .footer-links {
    width: 100%;
    justify-content: space-around;
  }
  
  .link-group h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 576px) {
  .feature-grid,
  .benefits-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-direction: column;
    gap: 2.5rem;
  }
}