/* 퍼즐 & 색상 변수 (사진4 파스텔 3D 디자인 적용) */
:root {
    --bg-color: #f6f4f0; /* 따뜻하고 부드러운 웜 베이지 */
    --text-primary: #2d2c2b;
    --text-secondary: #706f6d;
    
    /* 파스텔 엑센트 색상 */
    --accent-mint: #b9ebd0;
    --accent-blue: #b3d4f0;
    --accent-peach: #f5cfbc;
    --accent-purple: #c2baf0;
    
    /* 네오모피즘 그림자 정의 */
    --shadow-light: #ffffff;
    --shadow-dark: #dcd7cf;
    
    /* 글래스모피즘 효과 (투명도) */
    --glass-bg: rgba(255, 255, 255, 0.45);
    --glass-border: rgba(255, 255, 255, 0.7);
    --glass-shadow: 0 10px 40px 0 rgba(31, 38, 135, 0.08);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* 1. 배경 애니메이션 (파스텔 느낌 은은하게 퍼짐) */
.background-3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.7;
    animation: float-bg 25s infinite ease-in-out alternate;
}

.shape-1 {
    width: 500px;
    height: 500px;
    background-color: var(--accent-mint);
    top: -100px;
    left: -100px;
}

.shape-2 {
    width: 650px;
    height: 650px;
    background-color: var(--accent-blue);
    bottom: -200px;
    right: -100px;
    animation-delay: -7s;
}

.shape-3 {
    width: 450px;
    height: 450px;
    background-color: var(--accent-peach);
    top: 30%;
    left: 30%;
    animation-delay: -14s;
}

@keyframes float-bg {
    0% { transform: translate(0, 0) rotate(0deg) scale(1); }
    100% { transform: translate(150px, 80px) rotate(45deg) scale(1.1); }
}

/* Typography 기본 */
h1 { font-size: 4.5rem; line-height: 1.1; margin-bottom: 1.2rem; font-weight: 700; letter-spacing: -1px; }
h2 { font-size: 2.8rem; margin-bottom: 1rem; font-weight: 600; letter-spacing: -0.5px; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; font-weight: 500; }
p { font-size: 1.15rem; color: var(--text-secondary); margin-bottom: 1.5rem; line-height: 1.6; }

/* 공통 클래스 풀 및 컴포넌트 */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.neumorphic-card {
    background: var(--bg-color);
    border-radius: 24px;
    box-shadow: 10px 10px 20px var(--shadow-dark), -10px -10px 20px var(--shadow-light);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

/* Header */
.glass-header {
    position: fixed;
    top: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    max-width: 1200px;
    padding: 1.2rem 2.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 50px;
    z-index: 100;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}
.logo span { color: #8475db; }

nav a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    margin-left: 2.5rem;
    transition: color 0.3s ease;
}
nav a:hover { color: #8475db; }

.btn-primary {
    background: #2d2c2b;
    color: #fff;
    padding: 0.6rem 1.8rem;
    border-radius: 30px;
}
.btn-primary:hover { color: #fff; background: #000; }

/* Buttons */
.action-buttons { display: flex; gap: 1rem; margin-top: 2rem; }

.btn-neumorphic {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    border-radius: 30px;
    background: var(--bg-color);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    box-shadow: 6px 6px 14px var(--shadow-dark), -6px -6px 14px var(--shadow-light);
    transition: all 0.3s ease;
}
.btn-neumorphic:hover {
    box-shadow: 2px 2px 6px var(--shadow-dark), -2px -2px 6px var(--shadow-light);
    transform: translateY(2px);
    color: #8475db;
}

.btn-glass {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    border-radius: 30px;
    background: rgba(255,255,255,0.3);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(12px);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}
.btn-glass:hover {
    background: rgba(255,255,255,0.8);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
    color: #8475db;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px;
}

.main-panel {
    position: relative;
    width: 100%;
    max-width: 1200px;
    min-height: 70vh;
    padding: 5rem;
    border-radius: 40px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-content {
    max-width: 75%;
    z-index: 2;
}
.action-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    align-items: center;
    flex-wrap: nowrap;
}
h1 span {
    background: linear-gradient(45deg, #8475db, #65a1d6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* 3D Glass Orbs & Cards (사진 1 참고) */
.glass-card {
    position: absolute;
    background: linear-gradient(135deg, rgba(255,255,255,0.6), rgba(255,255,255,0.1));
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255,255,255,0.5);
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
    padding: 1.5rem;
    z-index: 1;
    animation: float-slow 7s infinite ease-in-out alternate;
}

.decor-1 {
    top: 20%;
    right: 12%;
    width: 270px;
    background: linear-gradient(135deg, rgba(132, 117, 219, 0.6), rgba(255,255,255,0.2));
    border: 1px solid rgba(255,255,255,0.6);
    color: #fff;
    cursor: pointer;
    transition: filter 0.3s ease;
}
.decor-1:hover { filter: brightness(1.15); }
.decor-1 h3 { color: #fff; }
.decor-1 p { color: rgba(255,255,255,0.85); margin-bottom:0; font-size:0.9rem;}

.decor-2 {
    bottom: 25%;
    right: 32%;
    width: 220px;
    animation-delay: -3s;
}

.floating-rabbit {
    position: absolute;
    top: 12%;
    left: 8%;
    width: 200px;
    z-index: 5;
    animation: float-slow 6s infinite ease-in-out alternate;
    animation-delay: -1.5s;
    filter: drop-shadow(0 15px 25px rgba(0,0,0,0.15));
}

.btn-kakao {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 1.1rem 2.5rem;
    border-radius: 30px;
    background: #fae100;
    color: #3c1e1e;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.05rem;
    box-shadow: 6px 6px 14px var(--shadow-dark), -6px -6px 14px var(--shadow-light);
    transition: all 0.3s ease;
}
.btn-kakao:hover {
    box-shadow: 2px 2px 6px var(--shadow-dark), -2px -2px 6px var(--shadow-light);
    transform: translateY(2px);
    background: #f0d700;
}

.small-pill {
    display: inline-block;
    padding: 0.3rem 1rem;
    background: rgba(0,0,0,0.8);
    color: #fff;
    border-radius: 20px;
    font-size: 0.75rem;
    letter-spacing: 1px;
}

.floating-orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.9), rgba(255,255,255,0.2));
    box-shadow: inset 0 0 25px rgba(255,255,255,0.6), 0 15px 25px rgba(0,0,0,0.08);
    backdrop-filter: blur(8px);
    z-index: 1;
    animation: float-orb 5s infinite ease-in-out alternate;
}

.orb-1 { width: 90px; height: 90px; top: 15%; left: 45%; }
.orb-2 { width: 140px; height: 140px; bottom: 12%; right: 8%; animation-delay: -2s; }

@keyframes float-slow {
    0% { transform: translateY(0); }
    100% { transform: translateY(-25px); }
}
@keyframes float-orb {
    0% { transform: translateY(0) scale(1); }
    100% { transform: translateY(-30px) scale(1.05); }
}

/* Marquee (Success Metrics) Section */
.marquee-section {
    padding: 60px 0;
    overflow: hidden;
    position: relative;
    width: 100%;
}

.marquee-subtitle {
    text-align: center;
    color: #8475db;
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.marquee-container {
    width: 100%;
    overflow: hidden;
    position: relative;
    display: flex;
    gap: 20px;
    user-select: none;
}

.marquee-group {
    display: flex;
    gap: 20px;
    flex-shrink: 0;
    min-width: max-content;
    animation: scroll-marquee 35s linear infinite;
}

.marquee-container:hover .marquee-group {
    animation-play-state: paused;
}

.marquee-card {
    position: relative;
    width: 200px;
    height: 240px;
    border-radius: 20px;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    transition: transform 0.3s ease;
}

.marquee-card:hover {
    transform: translateY(-5px);
}

.card-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0.2) 60%, rgba(0,0,0,0.1) 100%);
    z-index: 1;
}

.card-content {
    position: relative;
    z-index: 2;
    color: #fff;
}

.card-content .category {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.8);
    display: block;
    margin-bottom: 0.5rem;
}

.card-content .metric {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0 0 0.2rem 0;
    color: #fff;
    line-height: 1.1;
}

.card-content .desc {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.9);
    margin: 0;
}

@keyframes scroll-marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-100% - 20px)); }
}

/* Portfolio Section (사진 2, 3 참고 레이아웃) */
.portfolio-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 120px 20px;
}

.section-title { text-align: center; margin-bottom: 4rem; }

.category-filters {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.8rem 1.8rem;
    border: none;
    border-radius: 25px;
    background: var(--bg-color);
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    box-shadow: 5px 5px 10px var(--shadow-dark), -5px -5px 10px var(--shadow-light);
    transition: all 0.3s ease;
    font-family: inherit;
    font-size: 1.05rem;
}

.filter-btn:hover, .filter-btn.active {
    box-shadow: inset 4px 4px 8px var(--shadow-dark), inset -4px -4px 8px var(--shadow-light);
    color: #8475db; /* Active color */
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 3rem 2rem;
    align-items: start;
}

.neumorphic-card {
    padding: 1.2rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.neumorphic-card:hover {
    transform: translateY(-8px);
    box-shadow: 15px 15px 30px var(--shadow-dark), -15px -15px 30px var(--shadow-light);
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    background-color: #000;
}

.portfolio-card.horizontal .video-wrapper {
    padding-bottom: 56.25%; /* 16:9 */
}

.portfolio-card.vertical .video-wrapper {
    padding-bottom: 177.77%; /* 9:16 */
}

.video-wrapper iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}

.card-info {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-info h4 { 
    font-size: 1.25rem; 
    margin-bottom: 0.6rem; 
    color: var(--text-primary); 
    line-height: 1.4;
    word-break: keep-all;
}

.card-info p { 
    font-size: 0.95rem; 
    margin-bottom: 0; 
    color: var(--text-secondary); 
    font-weight: 400;
    line-height: 1.5;
    word-break: keep-all;
}

.portfolio-badge {
    display: inline-block;
    align-self: flex-start;
    padding: 0.3rem 0.8rem;
    background: var(--bg-color);
    box-shadow: inset 2px 2px 5px var(--shadow-dark), inset -2px -2px 5px var(--shadow-light);
    color: #8475db;
    font-size: 0.75rem;
    border-radius: 4px;
    margin-bottom: 1rem;
    font-weight: 700;
}

/* About Section */
.about-section {
    margin: 50px auto 120px;
    max-width: 850px;
    padding: 4rem;
    text-align: center;
    border-radius: 40px;
}

/* Footer */
footer {
    text-align: center;
    padding: 4rem 20px;
    background: rgba(255,255,255,0.3);
    border-top: 1px solid var(--glass-border);
}
.social-links { margin-top: 1.5rem; }
.social-links a {
    margin: 0 15px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
}
.social-links a:hover { color: #8475db; }

/* Responsive Updates */
@media (max-width: 900px) {
    .hero-content { max-width: 100%; text-align: center; }
    .glass-card, .floating-orb, .floating-rabbit { display: none !important; }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; line-height: 1.2; margin-bottom: 1rem; }
    .main-panel { padding: 3rem 1.5rem; text-align: center; }
    .hero-content p { font-size: 1rem; line-height: 1.6; }
    .action-buttons { flex-direction: column; width: 100%; gap: 1rem; }
    .action-buttons a { width: 100%; text-align: center; justify-content: center; }
    .btn-glass { margin-left: 0; }
    .glass-header { flex-direction: column; gap: 1rem; border-radius: 20px; padding: 1rem; }
    nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
    nav a { margin: 0 0.5rem; font-size: 0.95rem; }
}