@charset "utf-8";

/* [Theme Colors] */
:root {
    --charcoal-deep: #1e2024;
    --cream-bg: #f8f7f4;
    --gold-vivid: #c8a051;
    --burgundy: #800020;
    --text-dark: #111111;
    --text-gray: #555555;
    --white: #ffffff;
}

body {
    font-family: 'Pretendard', sans-serif;
    color: var(--text-dark);
    background-color: var(--cream-bg);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.font-eng { font-family: 'Montserrat', sans-serif; }
.font-serif { font-family: 'Noto Serif KR', serif; }

/* 1. HERO SECTION */
.hero {
    position: relative;
    /* [수정] 높이 축소 (600px -> 500px) */
    height: 500px;
    background-color: var(--charcoal-deep);
    color: var(--white);
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: linear-gradient(rgba(30,32,36,0.9), rgba(30,32,36,0.8)), url('https://www.transparenttextures.com/patterns/stardust.png');
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hero-text { flex: 1; }

.hero h1 {
    font-family: 'Pretendard', sans-serif;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 0;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.highlight-gold {
    color: var(--gold-vivid);
    position: relative;
    display: inline-block;
}

.highlight-gold::after {
    content: '';
    position: absolute;
    bottom: 5px; left: 0; width: 100%; height: 12px;
    background-color: rgba(200, 160, 81, 0.2);
    z-index: -1;
    transform: skewX(-10deg);
}

/* Map Container */
.map-container {
    position: absolute;
    right: -5%;
    top: 50%;
    transform: translateY(-50%);
    width: 60%;
    height: 80%;
    opacity: 0.6;
    z-index: 5;
    pointer-events: none;
}

/* -----------------------------------------------------------
   2. CORE VALUE SECTION
   ----------------------------------------------------------- */
.core-value-section {
    /* [수정] 상단 여백 축소 (180px -> 100px) */
    padding-top: 100px;
    padding-bottom: 100px;
    background-color: var(--cream-bg);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: 'Pretendard', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: #800020 !important;
    margin-top: 5px;
    margin-bottom: 30px;
    line-height: 1.3;
}

.section-header span {
    color: var(--gold-vivid);
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    font-size: 0.9rem;
    display: block;
    margin-bottom: 5px;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-gray);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 30px;
}

.impact-card {
    background: var(--white);
    padding: 40px 30px;
    border: 1px solid #e5e5e5;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    text-align: center;
}

.impact-card:hover {
    background-color: var(--charcoal-deep);
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    border-color: var(--charcoal-deep);
}

.impact-card .icon-box {
    font-size: 2.5rem;
    color: var(--gold-vivid);
    margin-bottom: 20px;
    transition: 0.3s;
}

.impact-card h3 {
    font-family: 'Pretendard', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--charcoal-deep);
    margin-bottom: 12px;
    transition: 0.3s;
}

.impact-card p {
    font-size: 0.95rem;
    color: var(--text-gray);
    line-height: 1.6;
    transition: 0.3s;
}

.impact-card:hover h3, 
.impact-card:hover p { color: var(--white); }
.impact-card:hover .icon-box { transform: scale(1.1); }

.tagline-bold {
    color: #800020;
    font-weight: 700;
    text-align: center;
    font-size: 1.1rem;
    margin-top: 40px;
}

/* 3. PROCESS SECTION */
.process-bg {
    background-color: var(--white);
    border-top: 1px solid #eaeaea;
    border-bottom: 1px solid #eaeaea;
    padding-top: 120px;
    padding-bottom: 120px;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 50px;
}

.flip-card { background-color: transparent; height: 280px; perspective: 1000px; cursor: pointer; }
.flip-inner { position: relative; width: 100%; height: 100%; text-align: center; transition: transform 0.6s; transform-style: preserve-3d; }
.flip-card:hover .flip-inner { transform: rotateY(180deg); }

.flip-front, .flip-back {
    position: absolute; width: 100%; height: 100%;
    -webkit-backface-visibility: hidden; backface-visibility: hidden;
    border-radius: 4px; display: flex; flex-direction: column;
    justify-content: center; align-items: center; padding: 24px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.flip-front { background-color: #fcfcfc; border: 1px solid #eee; }
.flip-back { background-color: var(--charcoal-deep); color: var(--white); transform: rotateY(180deg); border: 1px solid var(--gold-vivid); }

.step-num { font-family: 'Montserrat', sans-serif; font-size: 0.85rem; font-weight: 700; color: var(--gold-vivid); margin-bottom: 15px; letter-spacing: 1px; }
.step-title { font-size: 1.15rem; font-weight: 700; color: var(--charcoal-deep); line-height: 1.3; }
.flip-back h3 { font-size: 1.1rem; font-weight: 700; color: var(--gold-vivid) !important; margin-bottom: 15px; }
.step-desc { font-size: 0.9rem; line-height: 1.6; color: rgba(255,255,255,0.9); word-break: keep-all; }


/* 4. CTA SECTION */
.cta-section {
    position: relative;
    background-color: #1a1a1a;
    color: var(--white);
    text-align: center;
    padding: 140px 0;
    overflow: hidden;
    margin-top: 150px; 
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='70' viewBox='0 0 40 70' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M0 35L20 23.5V0L0 11.5zM20 23.5L40 35V11.5L20 0zM0 35L20 46.5V70L0 58.5zM20 46.5L40 35V58.5L20 70z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    background-size: 60px 105px;
    z-index: 0;
    pointer-events: none;
}

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

.cta-section h2 {
    font-family: 'Noto Serif KR', serif;
    font-size: 2.5rem;
    margin-bottom: 20px;
    font-weight: 400;
    letter-spacing: -0.5px;
    color: #ffffff;
}

.cta-section p {
    color: rgba(255,255,255,0.6);
    font-size: 1.1rem;
    font-weight: 300;
    margin-bottom: 60px;
}

.btn-gold {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 50px;
    background-color: #c5a059;
    color: var(--white);
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.btn-gold:hover {
    background-color: #d4af66;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(197, 160, 89, 0.4);
}

/* 애니메이션 */
.flight-path { stroke: var(--gold-vivid); stroke-width: 2; fill: none; stroke-dasharray: 8; animation: flow 20s linear infinite; opacity: 0.5; }
@keyframes flow { to { stroke-dashoffset: -1000; } }
.plane { fill: var(--white); } .dot { fill: var(--gold-vivid); } .label { fill: rgba(255,255,255,0.4); font-size: 14px; font-weight: 600; font-family: 'Montserrat', sans-serif; } .label-kor { fill: var(--gold-vivid); font-size: 16px; font-weight: 700; }

@media (max-width: 1024px) {
    .value-grid { grid-template-columns: repeat(2, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .map-container { display: none; }
    .hero-content { text-align: center; justify-content: center; } .hero-text { flex: none; }
}
@media (max-width: 600px) {
    .value-grid { grid-template-columns: 1fr; } .process-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 2.5rem; } .cta-section h2 { font-size: 2rem; }
}