/* ============ 서비스급 UI 추가 스타일 ============ */

/* 히어로 섹션 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 80px 24px 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-container {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.gradient-text {
    background: linear-gradient(to right, #fef9e7, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 40px;
    opacity: 0.95;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-hero-primary {
    background: white;
    color: #667eea;
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.btn-hero-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.2);
}

.btn-hero-secondary {
    background: transparent;
    color: white;
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-hero-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* 기능 섹션 */
.features-section {
    padding: 80px 24px;
    background: linear-gradient(to bottom, #f8f9fa, white);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    border: 1px solid #e5e7eb;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 업로드 섹션 */
.upload-section {
    padding: 60px 24px 80px;
    background: white;
}

.upload-card {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    padding: 48px 60px;
    border: 1px solid #e5e7eb;
}

.language-selector-wrapper {
    margin-bottom: 40px;
}

.upload-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    text-align: center;
}

.language-selector {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.language-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 32px;
    background: #f9fafb;
    border: 2px solid #d1d5db;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 280px;
    justify-content: center;
    font-size: 1.05rem;
}

.language-option:hover {
    background: #eff6ff;
    border-color: #3b82f6;
}

.language-option.selected {
    background: #3b82f6;
    border-color: #3b82f6;
    color: white;
}

.language-flag {
    font-size: 1.8rem;
}

.language-label {
    font-size: 1rem;
    font-weight: 600;
}

.language-arrow {
    font-size: 1.2rem;
    font-weight: 700;
    opacity: 0.7;
}

.upload-zone {
    cursor: pointer;
    transition: all 0.3s;
}

.upload-zone.dragover {
    border-color: #3b82f6;
    background: #eff6ff;
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 16px;
}

.upload-zone-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.upload-zone-subtitle {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.upload-zone-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.result-section {
    display: none;
}

.result-section.active {
    display: block;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .language-option {
        min-width: 100%;
    }
}