/* =====================================================
   옥보자기 - 메인 스타일시트
   세종 전통소품샵 랜딩페이지
   ===================================================== */

/* ----- CSS 변수 (디자인 토큰) ----- */
:root {
    /* 컬러 팔레트 */
    --color-primary: #C73E3A;       /* 단홍색 - 전통 빨강 */
    --color-secondary: #2C3E50;     /* 감색 - 전통 남색 */
    --color-background: #F8F4E8;    /* 생색 - 아이보리 */
    --color-accent: #B8860B;        /* 금색 - 강조 */
    --color-text: #2D2D2D;          /* 먹색 - 본문 */
    --color-text-light: #5A5A5A;    /* 밝은 텍스트 */
    --color-white: #FFFFFF;
    --color-border: #E0D8C8;

    /* 폰트 */
    --font-serif: 'Noto Serif KR', serif;
    --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, sans-serif;

    /* 간격 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;

    /* 그림자 */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);

    /* 전환 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* 컨테이너 */
    --container-max: 1200px;
    --container-padding: 1.5rem;

    /* 헤더 높이 */
    --header-height: 80px;
}

/* ----- 기본 스타일 ----- */
body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background-color: var(--color-background);
}

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

/* ----- 버튼 ----- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    border-radius: 4px;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #a83532;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-white);
    border: 2px solid var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-white);
    color: var(--color-secondary);
}

/* ----- 섹션 공통 ----- */
section {
    padding: var(--spacing-2xl) 0;
}

.section-label {
    display: inline-block;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 600px;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-header .section-desc {
    margin: 0 auto;
}

/* ----- 이미지 플레이스홀더 ----- */
.image-placeholder {
    width: 100%;
    height: 100%;
    min-height: 200px;
    background: linear-gradient(135deg, #E8E0D0 0%, #D8CFC0 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    font-size: 0.875rem;
    border: 2px dashed var(--color-border);
    border-radius: 8px;
}

.image-placeholder::before {
    content: attr(data-text);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* =====================================================
   헤더
   ===================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background-color: transparent;
    z-index: 1000;
    transition: all var(--transition-normal);
}

.header.scrolled {
    background-color: rgba(248, 244, 232, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-secondary);
}

.header:not(.scrolled) .logo-text {
    color: var(--color-white);
}

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

.nav-link {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-secondary);
    padding: 0.5rem 0;
    position: relative;
    transition: color var(--transition-fast);
}

.header:not(.scrolled) .nav-link {
    color: var(--color-white);
}

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

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

/* 모바일 메뉴 버튼 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background-color: var(--color-secondary);
    transition: all var(--transition-fast);
}

.header:not(.scrolled) .mobile-menu-btn span {
    background-color: var(--color-white);
}

/* 모바일 네비게이션 */
.mobile-nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav-link {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-secondary);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

/* =====================================================
   히어로 섹션
   ===================================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-secondary);
    overflow: hidden;
    padding: 0;
}

.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: scale(1.1);
    transition: opacity 1.5s ease-in-out, transform 8s ease-out;
}

.hero-slide.active {
    opacity: 1;
    transform: scale(1);
}

.hero-slide.prev {
    opacity: 0;
    transform: scale(1);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        to bottom,
        rgba(0, 0, 0, 0.3) 0%,
        rgba(0, 0, 0, 0.5) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-lg);
}

.hero-title {
    font-family: var(--font-serif);
    margin-bottom: var(--spacing-md);
}

.hero-title-main {
    display: block;
    font-size: 3.5rem;
    font-weight: 600;
    line-height: 1.3;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    letter-spacing: 0.2em;
}

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

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    color: var(--color-white);
    opacity: 0.8;
    animation: bounce 2s infinite;
}

.hero-scroll span {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    margin: 0 auto;
    border-left: 2px solid var(--color-white);
    border-bottom: 2px solid var(--color-white);
    transform: rotate(-45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* =====================================================
   작가 소개 섹션
   ===================================================== */
.about {
    background-color: var(--color-white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image-wrapper {
    position: relative;
    display: inline-block;
    max-width: 480px;
}

.about-image-wrapper::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--color-primary);
    border-radius: 8px;
    z-index: -1;
}

.about-image .image-placeholder {
    min-height: 500px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    display: block;
}

.about-role {
    font-size: 1.125rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

.about-description {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.about-highlights li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--color-background);
    border-radius: 8px;
    transition: transform var(--transition-fast);
}

.about-highlights li:hover {
    transform: translateX(8px);
}

.highlight-icon {
    font-size: 1.25rem;
}

.highlight-text {
    font-size: 0.9375rem;
    font-weight: 500;
}

/* =====================================================
   작품 갤러리 섹션
   ===================================================== */
.works {
    background-color: var(--color-background);
}

.works-filter {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.625rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-light);
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 30px;
    transition: all var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.works-gallery {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: 8px;
    overflow: hidden;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* =====================================================
   클래스 섹션
   ===================================================== */
.class {
    background-color: var(--color-white);
}

.class-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.class-card {
    background-color: var(--color-background);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

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

.class-image .image-placeholder {
    min-height: 320px;
    border-radius: 0;
    border: none;
}

.class-image img {
    width: 100%;
    height: 320px;
    object-fit: cover;
}

.class-info {
    padding: var(--spacing-lg);
}

.class-duration {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
}

.class-title {
    font-family: var(--font-serif);
    font-size: 1.375rem;
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.class-desc {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.class-includes {
    margin-bottom: var(--spacing-md);
}

.class-includes li {
    position: relative;
    padding-left: 1.25rem;
    font-size: 0.875rem;
    color: var(--color-text);
    margin-bottom: 0.375rem;
}

.class-includes li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
}

.class-price {
    padding: var(--spacing-sm);
    background-color: var(--color-white);
    border-radius: 8px;
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.price-label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-light);
    margin-bottom: 0.25rem;
}

.price-value {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
}

.class-card .btn {
    width: 100%;
}

.class-note {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: var(--color-background);
    border-radius: 12px;
    border-left: 4px solid var(--color-primary);
}

.class-note p {
    font-size: 0.9375rem;
    line-height: 1.8;
    color: var(--color-text-light);
}

/* =====================================================
   수상 및 경력 섹션
   ===================================================== */
.credentials {
    background: linear-gradient(135deg, var(--color-secondary) 0%, #1a252f 100%);
    color: var(--color-white);
}

.credentials .section-label {
    color: var(--color-accent);
}

.credentials .section-title {
    color: var(--color-white);
}

.credentials .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

.credentials-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.highlight-card {
    text-align: center;
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.highlight-card:hover {
    transform: translateY(-5px);
    background-color: rgba(255, 255, 255, 0.15);
}

.highlight-icon-large {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.highlight-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.highlight-card p {
    font-size: 0.875rem;
    opacity: 0.8;
    line-height: 1.5;
}

/* 타임라인 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-accent);
}

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

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -44px;
    top: 5px;
    width: 12px;
    height: 12px;
    background-color: var(--color-accent);
    border-radius: 50%;
}

.timeline-year {
    display: inline-block;
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.timeline-content ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.timeline-content li {
    position: relative;
    padding-left: 1rem;
    font-size: 0.9375rem;
    opacity: 0.9;
}

.timeline-content li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* =====================================================
   연락처 섹션
   ===================================================== */
.contact {
    background-color: var(--color-background);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-text h4 {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    color: var(--color-secondary);
    margin-bottom: 0.25rem;
}

.contact-text p {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.contact-text a {
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

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

.map-placeholder {
    width: 100%;
    height: 100%;
    min-height: 350px;
    background-color: var(--color-white);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-light);
    box-shadow: var(--shadow-sm);
}

.map-placeholder p {
    font-size: 1.125rem;
    font-weight: 500;
}

.map-placeholder small {
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

/* =====================================================
   푸터
   ===================================================== */
.footer {
    background-color: var(--color-secondary);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
}

.footer-main {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5rem;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-lg);
}

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

.footer-brand .logo-text {
    color: var(--color-white);
    display: block;
    margin-bottom: 0.25rem;
}

.footer-tagline {
    font-size: 0.875rem;
    opacity: 0.7;
    margin-bottom: var(--spacing-sm);
}

.footer-business {
    margin-top: var(--spacing-sm);
}

.footer-business p {
    font-size: 0.8125rem;
    opacity: 0.7;
    line-height: 1.6;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.footer-social a:hover {
    background-color: var(--color-primary);
    transform: translateY(-3px);
}

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

.footer-bottom p {
    font-size: 0.8125rem;
    opacity: 0.6;
    margin-bottom: 0.25rem;
}

.footer-bottom .footer-support {
    font-size: 0.75rem;
    opacity: 0.5;
}

.footer-bottom .footer-support a {
    color: var(--color-accent);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

.footer-bottom .footer-support a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* =====================================================
   플로팅 액션 바
   ===================================================== */
.floating-bar {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.floating-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    color: var(--color-white);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.floating-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.floating-phone {
    background-color: var(--color-primary);
}

.floating-instagram {
    background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
}

.floating-blog {
    background-color: #03C75A;
}

.floating-store {
    background-color: #03C75A;
}

/* 플로팅 바 애니메이션 */
.floating-bar.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px);
}

.floating-bar {
    transition: all var(--transition-normal);
}