/* 메인 페이지 (랜딩 페이지) 스타일 */

/* --- CSS 변수 및 리셋 --- */
:root {
    --primary-color: #2563eb; /* 신뢰의 블루 */
    --primary-dark: #1d4ed8;
    --secondary-color: #f8f9fa;
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --white: #ffffff;
    --border-color: #e2e8f0;
    --shadow: 0 0.25rem 0.375rem -0.0625rem rgba(0, 0, 0, 0.1), 0 0.125rem 0.25rem -0.0625rem rgba(0, 0, 0, 0.06);
    --radius: 0.75rem;
}

/* --- 공통 유틸리티 --- */
.main-container {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.main-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    text-decoration: none;
    border: none;
}

.main-btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.main-btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-0.125rem);
}

.main-btn-outline {
    background-color: transparent;
    border: 0.0625rem solid var(--border-color);
    color: var(--text-dark);
}

.main-btn-outline:hover {
    background-color: var(--secondary-color);
    border-color: var(--primary-color);
    color :var(--primary-color);
}

.main-section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-align: center;
}

.main-section-desc {
    font-size: 1.125rem;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 4rem;
    max-width: 43.75rem;
    margin-left: auto;
    margin-right: auto;
}

/* --- 헤더 (Navigation) --- */
.main-header {
    height: 5rem;
    border-bottom: 0.0625rem solid var(--border-color);
    position: fixed;
    width: 100%;
    top: 0;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(0.625rem);
    z-index: 1000;
}

.main-header .main-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.main-logo {
    font-size: rem;
    font-weight: 800;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.main-logo img {
    height: 2.5rem;
    width: auto;
}

.main-nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav-links a {
    font-weight: 500;
    color: var(--text-dark);
    transition: color 0.2s;
    text-decoration: none;
}

.main-nav-links a:hover {
    color: var(--primary-color);
}

.main-header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.main-login-btn {
    font-size: 0.9rem;
    padding: 0.5rem 1.25rem;
}

/* --- 히어로 섹션 (Hero) --- */
.main-hero {
    padding-top: 10rem;
    padding-bottom: 6.25rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #ffffff 100%);
}

.main-hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3.75rem;
}

.main-hero-text {
    flex: 1;
}

.main-hero-badge {
    display: inline-block;
    background-color: #dbeafe;
    color: var(--primary-color);
    padding: 0.375rem 0.75rem;
    border-radius: 1.25rem;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.main-hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

.main-hero p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 33.75rem;
}

.main-hero-buttons {
    display: flex;
    gap: 1rem;
}

.main-hero-image {
    flex: 1;
    position: relative;
}

.main-hero-image img {
    border-radius: var(--radius);
    box-shadow: 0 1.25rem 1.5625rem -0.3125rem rgba(0, 0, 0, 0.1), 0 0.625rem 0.625rem -0.3125rem rgba(0, 0, 0, 0.04);
    width: 100%;
    height: auto;
}

/* --- 특징 섹션 (Features) --- */
.main-features {
    padding: 6.25rem 0;
}

.main-features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.main-feature-card {
    padding: 2.5rem;
    border-radius: var(--radius);
    background-color: var(--white);
    border: 0.0625rem solid var(--border-color);
    transition: transform 0.3s ease;
}

.main-feature-card:hover {
    transform: translateY(-0.625rem);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.main-icon-box {
    width: 3.75rem;
    height: 3.75rem;
    background-color: #eff6ff;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.main-feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

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

/* --- 프로세스 섹션 (Process) --- */
.main-process {
    padding: 6.25rem 0;
    background-color: var(--white);
}

.main-process-timeline {
    position: relative;
    max-width: 56.25rem;
    margin: 0 auto;
    padding: 2.5rem 0;
}

.main-process-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 0.1875rem;
    background: linear-gradient(to bottom, var(--primary-color), #93c5fd);
    transform: translateX(-50%);
    z-index: 0;
}

.main-process-step {
    position: relative;
    margin-bottom: 3.75rem;
    display: flex;
    align-items: flex-start;
    gap: 2.5rem;
}

.main-process-step:nth-child(odd) {
    flex-direction: row;
}

.main-process-step:nth-child(even) {
    flex-direction: row-reverse;
}

.main-process-step-number {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3.75rem;
    height: 3.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    z-index: 1;
    box-shadow: 0 0.25rem 0.75rem rgba(37, 99, 235, 0.3);
    border: 0.25rem solid var(--white);
}

.main-process-step-content {
    flex: 1;
    background-color: var(--white);
    border: 0.125rem solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    margin-top: 0.625rem;
}

.main-process-step:nth-child(odd) .main-process-step-content {
    margin-right: calc(50% + 3.125rem);
}

.main-process-step:nth-child(even) .main-process-step-content {
    margin-left: calc(50% + 3.125rem);
}

.main-process-step-content:hover {
    transform: translateY(-0.3125rem);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.main-process-step-icon {
    width: 3.125rem;
    height: 3.125rem;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
}

.main-process-step-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.main-process-step-content p {
    color: var(--text-gray);
    line-height: 1.7;
    font-size: 1rem;
}

/* --- 대시보드 미리보기 섹션 (Preview) --- */
.main-preview-section {
    background-color: var(--text-dark);
    color: var(--white);
    padding: 6.25rem 0;
    text-align: center;
}

.main-preview-section .main-section-desc {
    color: #94a3b8;
}

.main-dashboard-mockup {
    margin-top: 3.75rem;
    background: rgba(255, 255, 255, 0.1);
    border: 0.0625rem solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 1.25rem;
    box-shadow: 0 1.5625rem 3.125rem -0.75rem rgba(0, 0, 0, 0.5);
    max-width: 62.5rem;
    margin-left: auto;
    margin-right: auto;
    overflow: hidden;
}

.main-dashboard-mockup img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
}

/* --- 통계 섹션 (Stats) --- */
.main-stats {
    padding: 5rem 0;
    background-color: var(--secondary-color);
    border-top: 0.0625rem solid var(--border-color);
}

.main-stats-grid {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.main-stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.main-stat-item p {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-dark);
}

/* --- 푸터 (Footer) --- */
.main-footer {
    padding: 3.75rem 0;
    border-top: 0.0625rem solid var(--border-color);
    background-color: var(--white);
}

.main-footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2.5rem;
}

.main-footer-brand p {
    margin-top: 1rem;
    color: var(--text-gray);
    max-width: 18.75rem;
}

.main-footer-links {
    display: flex;
    gap: 3.75rem;
}

.main-link-column h4 {
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--text-dark);
}

.main-link-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-link-column ul li {
    margin-bottom: 0.75rem;
    color: var(--text-gray);
    font-size: 0.95rem;
    text-decoration: none;
}

.main-link-column ul li a {
    color: var(--text-gray);
    font-size: 0.95rem;
    text-decoration: none;
}

.main-link-column ul li a:hover {
    color: var(--primary-color);
}

.main-copyright {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.875rem;
    padding-top: 2.5rem;
    border-top: 0.0625rem solid var(--border-color);
}

/* --- 반응형 (Responsive) --- */
@media (max-width: 64rem) {
    .main-hero h1 { 
        font-size: 2.5rem; 
    }
    .main-features-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
}

@media (max-width: 48rem) {
    
    .main-nav-links { 
        display: none; 
    }
    
    .main-hero-content {
        flex-direction: column;
        text-align: center;
    }

    .main-hero-buttons {
        justify-content: center;
    }

    .main-features-grid { 
        grid-template-columns: 1fr; 
    }

    .main-stats-grid {
        flex-direction: column;
        gap: 2.5rem;
    }

    .main-footer-content {
        flex-direction: column;
        gap: 2.5rem;
    }
    
    .main-dashboard-mockup {
        padding: 0.625rem;
    }

    /* 프로세스 섹션 모바일 */
    .main-process-timeline::before {
        left: 1.875rem;
    }

    .main-process-step {
        flex-direction: row !important;
        padding-left: 5rem;
    }

    .main-process-step-number {
        left: 1.875rem;
        transform: translateX(-50%);
    }

    .main-process-step-content {
        margin-right: 0 !important;
        margin-left: 0 !important;
    }

/* Custom Mobile */

    .main-hero h1 {
        font-size: 2rem;
    }
    
    .main-hero p {
        font-size: 1rem;
    }
    
    .main-hero-buttons {
        font-size : 0.875rem;
    }

    
    .main-section-desc {
        font-size: 1rem;
    }
    
    .main-process-step-content {
        font-size: 0.875rem;
    }

    .main-feature-card p{
        font-size : 0.9rem;
    }

    .main-section-title {
        font-size: 1.7rem;
    }

    .main-process-step-content h3 {
        font-size: 1.3rem;
        letter-spacing: -0.05rem;
    }

    .main-process-step-content p {
        font-size: 0.9rem;
    }

    .main-process-step-content {
        padding: 1.5rem;
    }
    .main-footer-links {
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

}