@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@300;400;700;900&display=swap');

:root {
    --bg-white: #FFFFFF;
    --bg-warm: #FAF9F6;
    --bg-black: #0A0A0A;
    --bg-charcoal: #1C1A18; /* Deep Oriental Ink */
    --text-black: #111111;
    --text-gray: #555555; /* 가독성을 위한 딥 그레이 */
    --text-light: #CCCCCC;
    --border-light: rgba(0, 0, 0, 0.06); /* Hair-line Border */
    --border-dark: rgba(255, 255, 255, 0.1); /* Dark Theme Hair-line */
    --glass-border: rgba(0, 0, 0, 0.05);
    
    --font-pro: 'Pretendard', -apple-system, BlinkMacSystemFont, "SF Pro Display", sans-serif;
}

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

html, body {
    width: 100%;
    margin: 0;
    padding: 0;
    background-color: var(--bg-white);
    color: var(--text-black);
    font-family: var(--font-pro);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    font-weight: 400; /* 본문 가독성 상향 */
}

.serif { font-family: 'Noto Serif KR', serif; letter-spacing: -0.03em; } /* 한글 세리프 텐션 */

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 4vw; } /* Grid 1200px 통일 */
.section { padding: clamp(80px, 15vh, 150px) 0; } /* Fluid Spacing */

/* Animations (Overshoot Physics) */
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1.2s cubic-bezier(0.16, 1, 0.3, 1), transform 1.2s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.fade-up.is-visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Shimmer Effect */
@keyframes shimmer {
    0% { background-position: -200% center; }
    100% { background-position: 200% center; }
}
.shimmer-btn {
    position: relative; overflow: hidden;
    background: linear-gradient(90deg, var(--text-black) 0%, #333 50%, var(--text-black) 100%);
    background-size: 200% auto; color: white; border: none;
    transition: transform 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.shimmer-btn:hover {
    animation: shimmer 2s linear infinite;
    transform: translateY(-3px) scale(1.02);
}

/* Navbar - Slim & Glassmorphism */
.navbar {
    position: fixed; top: 0; width: 100%; z-index: 1000;
    background: rgba(255, 255, 255, 0.85); 
    backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--glass-border); color: var(--text-black);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-inner {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: 15px; padding-bottom: 15px;
}
.brand { 
    font-size: 1.2rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
}
.nav-right {
    display: flex; align-items: center; gap: 24px;
    font-size: 0.9rem; font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase;
}

/* Button - Editorial */
.btn-editorial {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 14px 30px; 
    border: 1px solid var(--text-black); color: var(--text-black);
    font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.05em;
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55); background: transparent; cursor: pointer; border-radius: 40px; /* 라운드 처리로 모던하게 */
    line-height: 1; font-weight: 500;
}
.btn-editorial:hover { background: var(--text-black); color: var(--bg-white); transform: translateY(-2px); }
.btn-editorial.white { border-color: var(--bg-white); color: var(--bg-white); }
.btn-editorial.white:hover { background: var(--bg-white); color: var(--text-black); }

/* Mobile Menu Button */
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; color: var(--text-black); cursor: pointer; }
.mobile-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: rgba(10, 10, 10, 0.85); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); z-index: 999; display: flex; flex-direction: column; justify-content: center; align-items: center; opacity: 0; visibility: hidden; transition: all 0.4s ease; }
.mobile-overlay.active { opacity: 1; visibility: visible; }
.mobile-overlay a { color: white; font-size: 2rem; margin: 15px 0; font-family: 'Noto Serif KR', serif; opacity: 0; transform: translateY(20px); transition: all 0.4s ease; }
.mobile-overlay.active a { opacity: 1; transform: translateY(0); }

/* Hero Section (Mesh Gradient Oriental) */
.hero {
    height: auto; min-height: 90vh; position: relative;
    display: flex; flex-direction: column; justify-content: center;
    background-color: var(--bg-warm);
    /* Mesh Gradient mimicking oriental ink wash / blurred paper */
    background-image: 
        radial-gradient(at 0% 0%, hsla(30, 20%, 95%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(20, 10%, 90%, 1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(40, 15%, 85%, 1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(10, 5%, 95%, 1) 0px, transparent 50%);
    padding-top: 15vh; padding-bottom: 10vh;
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.65" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)"/%3E%3C/svg%3E');
    opacity: 0.05; pointer-events: none; z-index: 1;
}
/* Oriental Mountain Silhouette (수묵화 산 능선) */
.hero::after {
    content: ''; position: absolute; bottom: 0; right: -5%; width: 110%; height: 85%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23111111' fill-opacity='1' d='M0,192L48,197.3C96,203,192,213,288,213.3C384,213,480,203,576,170.7C672,139,768,85,864,80C960,75,1056,117,1152,138.7C1248,160,1344,160,1392,160L1440,160L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3Cpath fill='%23111111' fill-opacity='0.7' d='M0,288L60,261.3C120,235,240,181,360,176C480,171,600,213,720,229.3C840,245,960,235,1080,208C1200,181,1320,139,1380,117.3L1440,96L1440,320L1380,320C1320,320,1200,320,1080,320C960,320,840,320,720,320C600,320,480,320,360,320C240,320,120,320,60,320L0,320Z'%3E%3C/path%3E%3Cpath fill='%23111111' fill-opacity='0.4' d='M0,128L80,144C160,160,320,192,480,181.3C640,171,800,117,960,122.7C1120,128,1280,192,1360,224L1440,256L1440,320L1360,320C1280,320,1120,320,960,320C800,320,640,320,480,320C320,320,160,320,80,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover; background-position: right bottom; background-repeat: no-repeat;
    opacity: 0.05; pointer-events: none; z-index: 2;
}

.hero-content {
    position: relative; z-index: 10; max-width: 1200px; margin: 0 auto;
    text-align: left; width: 100%; padding-left: 20px;
}
.hero-title {
    font-size: clamp(3rem, 6vw, 5.5rem);
    font-weight: 300; line-height: 1.2; letter-spacing: -0.01em; 
    margin-bottom: 24px; word-break: keep-all; 
}
.hero-title strong { font-weight: 700; }
.hero-subtitle {
    font-size: clamp(1rem, 2.2vw, 1.15rem); color: var(--text-gray); font-weight: 400;
    max-width: 650px; margin: 0 0 50px 0; line-height: 1.8; word-break: keep-all;
}

/* Badges & App Tags */
.badge {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 6px 14px; font-size: 0.8rem; font-weight: 600; line-height: 1;
    border: 1px solid var(--border-light); border-radius: 20px; color: var(--text-black);
    background: rgba(255, 255, 255, 0.5); backdrop-filter: blur(5px); margin-right: 6px; margin-bottom: 6px;
    letter-spacing: 0.02em;
}
.badge-dark {
    background: var(--text-black); color: var(--bg-white); border-color: var(--text-black);
}
.app-coming-soon {
    font-size: 0.85rem; color: var(--text-gray); letter-spacing: 0.05em; font-weight: 400;
}
.app-coming-soon span { display: inline-block; border-bottom: 1px solid var(--border-light); padding-bottom: 2px; }

/* Mobile Adjustments for Left Align */
@media (max-width: 768px) {
    .hero-content { padding-left: 0; }
    .hero-actions { flex-direction: column; align-items: flex-start !important; gap: 15px !important; }
}

/* Trust Section */
.trust-section { background: var(--bg-white); padding-bottom: 5vh; border-bottom: 1px solid var(--border-light); }
.trust-grid { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; text-align: center; }
.trust-item { flex: 1; min-width: 250px; }
.trust-num { font-size: clamp(3rem, 5vw, 5rem); color: var(--text-black); font-weight: 300; letter-spacing: -0.05em; line-height: 1; margin-bottom: 15px;}
.trust-unit { font-size: 1.5rem; color: var(--text-light); font-weight: 400; margin-left: 5px; font-family: 'Pretendard', sans-serif;}
.trust-label { font-size: 0.95rem; color: var(--text-gray); font-weight: 400; max-width: 200px; margin: 0 auto; word-break: keep-all;}

/* Services - Magazine List */
.services-section { background: var(--bg-warm); }
.services-header { margin-bottom: 10vh; display: flex; justify-content: space-between; align-items: flex-end;}
.services-title { font-size: clamp(2.5rem, 5vw, 3rem); font-weight: 300; letter-spacing: -0.05em; }
.services-desc { font-size: 1rem; color: var(--text-gray); text-transform: uppercase; letter-spacing: 0.1em; }

.service-list { border-top: 1px solid var(--border-light); width: 100%; }
.service-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: clamp(30px, 6vh, 60px) 0; border-bottom: 1px solid var(--border-light);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55); position: relative; cursor: pointer; flex-wrap: wrap;
}
.service-num { font-size: 1.5rem; color: var(--text-gray); width: 10%; font-family: 'Times New Roman', serif; min-width: 40px;}
.service-name { font-size: clamp(1.8rem, 4vw, 3.5rem); font-weight: 300; transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55); flex: 1; letter-spacing: -0.02em;}
.service-item:hover .service-name { transform: translateX(30px); color: var(--bg-black); }
.service-detail { width: 30%; font-size: 1rem; color: var(--text-gray); text-align: right; opacity: 0; transition: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55); transform: translateY(10px);}
.service-item:hover .service-detail { opacity: 1; transform: translateY(0); }

/* Review Quote */
.quote-section {
    background: var(--bg-white); text-align: center;
    padding: 20vh 5vw; overflow: hidden;
}
.quote-mark { font-size: clamp(3rem, 6vw, 6rem); color: var(--text-light); line-height: 0; margin-bottom: 30px;}
.quote-text {
    font-size: clamp(1.8rem, 4vw, 3.5rem); font-weight: 300; line-height: 1.4;
    max-width: 1200px; margin: 0 auto; letter-spacing: -0.02em; word-break: keep-all; 
}

/* 3 Steps Philosophy */
.philosophy-section {
    background: var(--bg-black); color: var(--bg-white);
    padding: 15vh 5vw; display: flex; flex-direction: column; gap: 10vh;
}
.phil-header h2 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 300; margin-bottom: 30px; letter-spacing: -0.05em; word-break: keep-all; }
.phil-header p { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--text-gray); line-height: 1.8; max-width: 500px; word-break: keep-all;}

.process-grid { display: flex; gap: 40px; border-top: 1px solid var(--border-dark); padding-top: 40px; flex-wrap: wrap; }
.process-card { flex: 1; min-width: 300px; display: flex; flex-direction: column; gap: 20px;}
.process-card h3 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 300; border-bottom: 1px solid var(--border-dark); padding-bottom: 20px; color: var(--bg-white);}
.process-card p { font-size: 1.1rem; color: var(--text-gray); font-weight: 300; line-height: 1.8; word-break: keep-all;}
.process-card strong { color: var(--text-light); font-weight: 500; display:block; margin-bottom: 10px;}

/* VIP Registration (Black Theme with Slant Divider) */
.vip-section {
    background: var(--bg-charcoal); color: var(--bg-white);
    padding: 20vh 0; text-align: center; border-bottom: 1px solid var(--border-dark);
    clip-path: polygon(0 0, 100% 5vw, 100% 100%, 0 100%);
    margin-top: -5vw; padding-top: calc(20vh + 5vw);
}
.vip-title { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 300; margin-bottom: 20px; letter-spacing: -0.02em; word-break: keep-all; }
.vip-subtitle { font-size: clamp(0.9rem, 2vw, 1.2rem); color: var(--text-gray); margin-bottom: 60px; font-weight: 300; letter-spacing: 0.05em; text-transform: uppercase; word-break: keep-all; }

.vip-form { max-width: 600px; margin: 0 auto; display: flex; gap: 0; border-bottom: 1px solid var(--border-dark); padding-bottom: 10px; width: 100%; transition: border-color 0.4s ease;}
.vip-form:focus-within { border-bottom-color: var(--text-gray); }
.vip-input {
    flex: 1; background: transparent; border: none; font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--bg-white); outline: none; padding: 10px 0; font-family: 'Pretendard'; font-weight: 300; width: 100%;
}
.vip-input::placeholder { color: var(--border-dark); }
.vip-submit {
    background: transparent; border: none; color: var(--bg-white); cursor: pointer;
    font-size: clamp(0.9rem, 1.5vw, 1.2rem); text-transform: uppercase; letter-spacing: 0.1em; transition: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.vip-submit:hover { color: var(--text-light); transform: translateX(5px); }

/* HTML 구조 재편에 따른 불필요한 패딩 제거 */
.trust-section { background: var(--bg-white); padding-bottom: 5vh; border-bottom: 1px solid var(--border-light); }
.services-section { background: var(--bg-warm); }
.quote-section { background: var(--bg-white); text-align: center; padding: 20vh 0; overflow: hidden; }
.philosophy-section { background: var(--bg-black); color: var(--bg-white); padding: 15vh 0; display: flex; flex-direction: column; gap: 10vh; }

/* Editorial SEO Column */
.editorial-section { background: var(--bg-white); padding: 15vh 0; border-top: 1px solid var(--border-light); }
.editorial-grid { display: flex; gap: 80px; align-items: flex-start; justify-content: space-between; }
.editor-title { width: 35%; }
.editor-title h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 300; line-height: 1.3; color: var(--text-black); }
.editor-title strong { font-weight: 700; display: block; margin-top: 10px; }
.editor-content { width: 65%; max-width: 800px; }
.editor-content p { font-size: 1.1rem; line-height: 2; margin-bottom: 30px; color: var(--text-gray); font-weight: 300; text-align: justify; word-break: keep-all; }
.editor-content p strong { color: var(--text-black); font-weight: 500; }

/* FAQ Accordion */
.faq-section { background: var(--bg-warm); padding: clamp(80px, 15vh, 150px) 0; border-top: 1px solid var(--border-light); }
.faq-title { font-size: clamp(2.5rem, 4vw, 3.5rem); font-weight: 300; text-align: center; margin-bottom: 80px; letter-spacing: -0.02em; }
.faq-list { max-width: 900px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-light); cursor: pointer; transition: 0.3s; }
.faq-item:hover { border-bottom-color: var(--text-gray); }
.faq-question { font-size: 1.2rem; font-weight: 500; font-family: var(--font-pro); padding: 30px 0; outline: none; list-style: none; position: relative; letter-spacing: -0.01em;}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::after { content: '+'; position: absolute; right: 0; font-size: 1.5rem; font-weight: 300; top: 50%; transform: translateY(-50%); transition: 0.3s;}
details[open] .faq-question::after { content: '-'; }
.faq-answer { font-size: 1rem; line-height: 1.8; color: var(--text-gray); font-weight: 400; padding: 0 0 40px 0; word-break: keep-all; }

footer { background: var(--bg-charcoal); color: var(--text-gray); padding: 10vh 0 5vh; }
.footer-flex { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 60px; margin-bottom: 10vh; border-bottom: 1px solid var(--border-dark); padding-bottom: 5vh;}
.footer-brand p { margin-top: 10px; font-size: 0.95rem; }
.footer-links { display: flex; gap: 80px; flex-wrap: wrap; }
.footer-links div { display: flex; flex-direction: column; gap: 15px; font-size: 0.95rem; }
.footer-links strong { color: var(--bg-white); font-weight: 500; font-size: 1rem; margin-bottom: 10px;}
.footer-links a:hover { color: var(--bg-white); }
.footer-corp p { font-size: 0.9rem; color: var(--border-dark); }
.footer-bottom { text-align: center; font-size: 0.85rem; color: var(--border-dark); text-transform: uppercase; letter-spacing: 0.1em;}

/* Mobile Responses */
@media (max-width: 1024px) {
    .services-header { display:block; }
    .services-desc { margin-top: 20px; display:block; }
    .service-detail { display: none; }
    .editorial-grid { flex-direction: column; gap: 40px; }
    .editor-title, .editor-content { width: 100%; }
}
@media (max-width: 768px) {
    /* Fluid Mobile Spacing & Padding */
    .container { padding-left: 20px !important; padding-right: 20px !important; }
    .nav-inner { padding-top: 12px; padding-bottom: 12px; }
    .nav-right { display: none; } /* Hide normal menu on mobile */
    .mobile-menu-btn { display: block; }
    .m-hide { display: none; }
    .hero { height: auto; min-height: 80vh; padding-top: 100px; padding-bottom: 60px; justify-content: center; }
    .vip-form { flex-direction: column; border-bottom:none; gap: 0;}
    .vip-input { border-bottom: 1px solid rgba(255,255,255,0.1); margin-bottom: 20px; font-size: 1.1rem; }
    .vip-submit { align-self: flex-start; border-bottom: 1px solid var(--bg-white); padding-bottom: 5px; margin-top: 10px; border-radius: 0; }
    .footer-flex { flex-direction: column; gap: 40px; }
    .footer-links { gap: 40px; flex-direction: column; }
    
    /* Service List Mobile Swipe Carousel */
    .service-list {
        display: flex; overflow-x: auto; scroll-snap-type: x mandatory;
        scroll-padding-left: 20px; gap: 16px; padding-bottom: 24px;
        padding-right: 40px; margin: 0 -20px; padding-left: 20px;
        border-top: none; -ms-overflow-style: none; scrollbar-width: none;
    }
    .service-list::-webkit-scrollbar { display: none; }
    .service-item {
        flex: 0 0 85vw; scroll-snap-align: start; flex-direction: column; align-items: flex-start;
        background: var(--bg-white); border: 1px solid var(--border-light);
        border-radius: 16px; padding: 32px 20px; border-bottom: 1px solid var(--border-light);
    }
    .service-num { margin-bottom: 16px; width: 100%; font-size: 1.1rem;}
    .service-item:hover .service-name { transform: none; }
    .service-detail { display: block; opacity: 1; transform: none; width: 100%; text-align: left; margin-top: 12px; margin-left: 0; font-size: 0.95rem; }
    
    .faq-question { font-size: 1.05rem; padding-right: 20px; }
    .vip-section { clip-path: polygon(0 0, 100% 8vw, 100% 100%, 0 100%); margin-top: -8vw; padding-top: calc(15vh + 8vw); }
}