/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #4a5568;
    background-color: #ffffff;
    font-size: 16px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.2;
}

.header .container {
    position: relative;
    z-index: 1;
}

.header h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 8px rgba(0,0,0,0.3);
    letter-spacing: -0.02em;
    background: linear-gradient(45deg, #ffffff, #f0f8ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.header h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(45deg, #fbbf24, #f59e0b);
    border-radius: 2px;
}

.header .title {
    font-size: 1.6rem;
    margin-bottom: 20px;
    opacity: 1;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    letter-spacing: 0.02em;
    color: #f8fafc;
}

.header .subtitle {
    font-size: 1.3rem;
    opacity: 0.95;
    font-style: italic;
    max-width: 700px;
    margin: 0 auto;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
    line-height: 1.6;
    color: #e2e8f0;
    font-weight: 400;
}

/* Main Content */
.main {
    padding: 60px 0;
    background: linear-gradient(180deg, #f7fafc 0%, #ffffff 100%);
}

/* Stats */
.stats {
    display: flex;
    justify-content: space-around;
    margin-bottom: 60px;
    padding: 40px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.2);
    color: white;
}

.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fbbf24;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Sections */
section {
    margin-bottom: 60px;
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
}

h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 3px solid #667eea;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: #fbbf24;
}

h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 20px;
    margin-top: 30px;
}

h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #667eea;
    margin-bottom: 15px;
}

p {
    margin-bottom: 18px;
    color: #4a5568;
    line-height: 1.7;
}

ul {
    margin-bottom: 25px;
    padding-left: 25px;
}

li {
    margin-bottom: 12px;
    color: #4a5568;
    line-height: 1.6;
}

/* About */
.about p {
    font-size: 1.1rem;
    line-height: 1.8;
}

/* Competencies */
.competency {
    margin-bottom: 40px;
    padding: 25px;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    border-radius: 12px;
    border-left: 4px solid #667eea;
}

.competency h3 {
    color: #667eea;
    margin-top: 0;
}

/* Projects */
.project {
    margin-bottom: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #f0fff4 0%, #f7fafc 100%);
    border-radius: 12px;
    border-left: 4px solid #48bb78;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.project h4 {
    color: #48bb78;
    margin-bottom: 15px;
}

/* Performance */
.performance ul {
    background: linear-gradient(135deg, #fef5e7 0%, #f7fafc 100%);
    padding: 25px;
    border-radius: 12px;
    border-left: 4px solid #fbbf24;
}

.performance li {
    margin-bottom: 15px;
    font-weight: 500;
}

.performance strong {
    color: #d69e2e;
}

/* Vision */
.roadmap {
    margin: 30px 0;
}

.roadmap-item {
    margin-bottom: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #e6fffa 0%, #f7fafc 100%);
    border-radius: 10px;
    border-left: 4px solid #38b2ac;
    transition: transform 0.2s ease;
}

.roadmap-item:hover {
    transform: translateX(5px);
}

.roadmap-item strong {
    color: #38b2ac;
    font-weight: 600;
}

blockquote {
    font-style: italic;
    font-size: 1.2rem;
    color: #667eea;
    text-align: center;
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, #fef5e7 0%, #f7fafc 100%);
    border-radius: 16px;
    border-left: 6px solid #fbbf24;
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.1);
    position: relative;
}

blockquote::before {
    content: '"';
    font-size: 4rem;
    color: #fbbf24;
    position: absolute;
    top: -10px;
    left: 20px;
    opacity: 0.3;
}

/* Contact */
.contact {
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
    text-align: center;
}

.contact p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.contact strong {
    color: #4a5568;
    font-weight: 600;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
    color: white;
    padding: 40px 0;
    text-align: center;
}

/* Responsive Design - Minimal */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 80px 0;
    }
    
    .header h1 {
        font-size: 3rem;
    }
    
    .header .title {
        font-size: 1.4rem;
    }
    
    .header .subtitle {
        font-size: 1.1rem;
    }
    
    .stats {
        flex-direction: column;
        gap: 20px;
        padding: 30px 0;
    }
    
    .stat-item {
        margin-bottom: 10px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    section {
        padding: 30px 20px;
        margin-bottom: 40px;
    }
    
    h2 {
        font-size: 1.7rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .main {
        padding: 40px 0;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 60px 0;
    }
    
    .header h1 {
        font-size: 2.5rem;
    }
    
    .header .title {
        font-size: 1.2rem;
    }
    
    .header .subtitle {
        font-size: 1rem;
    }
    
    .stats {
        padding: 25px 0;
    }
    
    .stat-number {
        font-size: 1.8rem;
    }
    
    section {
        padding: 25px 15px;
    }
    
    .project, .competency, .roadmap-item {
        padding: 20px;
    }
    
    blockquote {
        font-size: 1.1rem;
        padding: 25px;
    }
    
    .main {
        padding: 30px 0;
    }
}