/* CSS 변수 정의 */
:root {
    /* 색상 */
    --color-primary: #0066FF;
    --color-primary-dark: #0052cc;
    --color-background: #FFFFFF;
    --color-background-alt: #F5F5F5;
    --color-background-light: #F6FAFD;
    --color-text: #000000;
    --color-text-light: #FFFFFF;
    --color-border: #EDEEF0;
    
    /* 여백 - 반응형 값으로 변경 */
    --spacing-xs: clamp(8px, 1vw + 4px, 12px);
    --spacing-sm: clamp(12px, 1vw + 8px, 16px);
    --spacing-md: clamp(16px, 1.5vw + 10px, 20px);
    --spacing-lg: clamp(24px, 2vw + 16px, 40px);
    
    /* 그림자 */
    --shadow-sm: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 10px rgba(0, 102, 255, 0.4);
    
    /* 테두리 */
    --border-radius-sm: clamp(6px, 0.5vw + 4px, 8px);
    --border-radius-md: clamp(20px, 1.5vw + 10px, 30px);
    --border-radius-lg: clamp(60px, 2vw + 40px, 80px);
    
    /* 최대 너비 */
    --max-width-container: min(100%, 480px);
    
    /* 폰트 크기 - 반응형 값으로 변경 */
    --font-size-xs: clamp(0.75rem, 0.5vw + 0.5rem, 0.875rem);
    --font-size-sm: clamp(0.875rem, 0.75vw + 0.625rem, 1rem);
    --font-size-md: clamp(1rem, 1vw + 0.75rem, 1.25rem);
    --font-size-lg: clamp(1.25rem, 1.5vw + 0.875rem, 1.5rem);
    --font-size-xl: clamp(1.5rem, 2vw + 1rem, 2rem);
}

/* 폰트 정의 */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.css');


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

html {
    font-size: 16px;
}

body {
    font-family: 'Pretendard', sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background-alt);
    min-height: 100vh;
    padding: 0;
    margin: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 페이지 컨테이너 스타일 */
.page-container {
    max-width: var(--max-width-container);
    margin: 0 auto;
    position: relative;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    height: 100%;
    min-height: 100vh;
    background-color: var(--color-background);
}

/* 헤더 스타일 */
header {
    background-color: var(--color-primary);
    padding: var(--spacing-xs) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-container {
    max-width: var(--max-width-container);
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 var(--spacing-md);
}

.logo img {
    height: auto;
    max-width: 90px;
    width: auto;
}

/* 히어로 섹션 스타일 */
.hero {
    background-image: url('Images/Hero.png');
    background-size: cover;
    background-position: center;
    height: clamp(360px, 50vh, 480px);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    text-align: left;
    padding: var(--spacing-md);
    position: relative;
}

.hero-content {
    max-width: 100%;
    z-index: 2;
    align-self: flex-start;
    text-align: left;
    padding-left: var(--spacing-md);
    width: 100%;
    margin-top: var(--spacing-md);
    position: relative;
}

.hero h1 {
    font-weight: 700;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    color: var(--color-text-light);
    max-width: 400px;
}

.hero p {
    font-weight: 600;
    font-size: var(--font-size-md);
    line-height: 1.5;
    color: var(--color-text-light);
    max-width: 400px;
}

/* 섹션 공통 스타일 */
section {
    padding: var(--spacing-lg) var(--spacing-md);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title h2 {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.divider {
    width: 40px;
    height: 2px;
    background-color: var(--color-primary);
    margin: var(--spacing-xs) auto;
}

/* 서비스 섹션 스타일 */
.service {
    max-width: var(--max-width-container);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.service-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.service-title h2 {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.service-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
    gap: var(--spacing-md);
}

.service-item {
    width: 100%;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.service-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* 퍼스란 섹션 스타일 */
.what-pulse {
    max-width: var(--max-width-container);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.what-pulse-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.what-pulse-title h2 {
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

.what-pulse-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.what-pulse-item {
    width: 100%;
    border-radius: var(--border-radius-sm);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.what-pulse-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* FAQ 섹션 스타일 */
.faq {
    background-color: var(--color-background-light);
    padding: var(--spacing-lg) 0;
}

.faq-container {
    max-width: var(--max-width-container);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.faq-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.faq-title h2 {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.faq-list {
    display: flex;
    flex-direction: column;
}

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

.faq-question {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) 0;
}

.faq-answer {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: 0 0 var(--spacing-md) var(--spacing-md);
}

.q-mark, .a-mark {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--color-primary);
    min-width: 20px;
}

.faq-question p {
    font-weight: 700;
    font-size: 1.125rem;
}

.faq-answer p {
    font-weight: 500;
    font-size: 1rem;
}

/* 푸터 스타일 */
footer {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-logo img {
    height: 40px;
}

.footer-company,
.footer-registration,
.footer-links,
.footer-hosting,
.footer-copyright {
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: var(--color-text-light);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .footer-content {
        padding: 0 1rem;
    }
    
    .footer-logo img {
        height: 30px;
    }
    
    .footer-company,
    .footer-registration,
    .footer-links,
    .footer-hosting,
    .footer-copyright {
        font-size: 0.8rem;
    }
}

/* 스티키 버튼 스타일 */
.sticky-button-container {
    position: fixed;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    justify-content: center;
    z-index: 999;
    padding: 0 var(--spacing-md);
    width: 100%;
    max-width: var(--max-width-container);
    transition: all 0.3s ease;
}

.sticky-button {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    font-weight: 600;
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    text-align: center;
    box-shadow: var(--shadow-md), 0 0 0 3px rgba(0, 102, 255, 0.1) inset;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    min-width: 200px;
    transform: translateY(0);
    animation: float 3s ease-in-out infinite;
}

.sticky-button:hover {
    background-color: var(--color-primary-dark);
    box-shadow: 0 6px 15px rgba(0, 102, 255, 0.5), 0 0 0 4px rgba(0, 102, 255, 0.2) inset;
    transform: translateY(-3px);
}

.sticky-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(0, 102, 255, 0.3), 0 0 0 2px rgba(0, 102, 255, 0.1) inset;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-5px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* 이미지 최적화 */
img {
    max-width: 100%;
    height: auto;
    display: block;
    aspect-ratio: attr(width) / attr(height);
}

/* 반응형 스타일 */
@media (min-width: 359px) {
    .hero {
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .service-items {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 768px) {
    .hero {
        height: clamp(400px, 60vh, 480px);
    }
    
    .service-items {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .footer-info {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
}

@media (min-width: 1024px) {
    .service-items {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-info {
        grid-template-columns: repeat(3, 1fr);
    }
}