/* service_detail.css */

/* --- Variables (Service Theme) --- */
:root {
    --toss-blue: #3182F6;
    --toss-dark: #101012;
    --card-bg: #191F28;
    --text-white: #FFFFFF;
    --text-gray: #B0B8C1;
    --hover-glow: rgba(49, 130, 246, 0.4);
    --card-border: rgba(255, 255, 255, 0.08);
}

.detail-body {
    margin: 0;
    padding: 0;
    font-family: 'Pretendard', sans-serif;
    background-color: var(--toss-dark);
    color: var(--text-white);
    line-height: 1.6;
}

/* Header Override */
.detail-body .header {
    background-color: rgba(16, 16, 18, 0.9) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}
.detail-body .logo, .detail-body .nav-link { color: #ffffff !important; }

/* Layout */
.container {
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.section { padding: 8rem 0; }
.text-center { text-align: center; }

/* Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(2.5rem);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.scroll-reveal.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.highlight-blue { color: var(--toss-blue); }


/* =========================================
   1. Hero Section
   ========================================= */
.detail-hero {
    position: relative;
    height: 37.5rem;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg-wrapper {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
}

.hero-bg-img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(90deg, #101012 0%, rgba(16, 16, 18, 0.8) 50%, rgba(16, 16, 18, 0.4) 100%);
}

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

.service-tag {
    display: inline-block;
    color: var(--toss-blue);
    font-weight: 700;
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 1.5rem;
}

.hero-title .highlight {
    color: var(--toss-blue);
}

.hero-desc {
    font-size: 1.35rem;
    color: var(--text-gray);
    max-width: 45rem;
}


/* =========================================
   2. Problem Section
   ========================================= */
.section-header { margin-bottom: 5rem; }
.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1.2rem;
}
.section-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
}

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

.problem-card {
    background-color: var(--card-bg);
    padding: 3.5rem 3rem;
    border-radius: 2rem;
    text-align: left;
    border: 1px solid transparent;
    background-image: linear-gradient(var(--card-bg), var(--card-bg)), 
                      linear-gradient(135deg, var(--card-border), rgba(49, 130, 246, 0.3));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    
    display: flex;
    align-items: center;
    gap: 2.5rem;
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-8px);
    background-image: linear-gradient(var(--card-bg), var(--card-bg)), 
                      linear-gradient(135deg, var(--toss-blue), var(--hover-glow));
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.4), 
                inset 0 0 2rem rgba(49, 130, 246, 0.1);
}

.icon-wrapper {
    flex-shrink: 0;
    width: 5rem;
    height: 5rem;
    background: radial-gradient(circle at center, rgba(49, 130, 246, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--toss-blue);
    font-size: 3rem;
    box-shadow: 0 0 2rem rgba(49, 130, 246, 0.1);
    transition: all 0.3s ease;
}

.problem-card:hover .icon-wrapper {
    color: white;
    background: var(--toss-blue);
    box-shadow: 0 0 3rem var(--hover-glow);
    transform: scale(1.1);
}

.card-text h3 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 0 0.8rem 0;
    color: white;
}

.card-text p {
    font-size: 1.2rem;
    color: var(--text-gray);
    line-height: 1.6;
    margin: 0;
    word-break: keep-all;
}


/* =========================================
   3. Solution Section
   ========================================= */
.solution-section {
    background-color: #151920;
}

.solution-layout {
    display: grid;
    grid-template-columns: 1fr 1fr; /* 기본은 1:1 분할 */
    gap: 5rem;
    align-items: center;
}

.blue-label {
    color: var(--toss-blue);
    font-weight: 800;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 1rem;
}

.solution-desc {
    font-size: 1.4rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
}

.check-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

.check-list li {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    color: white;
}

.check-list li::before {
    content: '✔';
    color: var(--toss-blue);
    font-weight: 800;
    margin-right: 1.2rem;
    font-size: 1.4rem;
}

/* [수정] 솔루션 이미지: 3:2 비율 적용 */
.solution-image {
    width: 100%;
    /* 비율 유지를 위한 패딩 핵 (3:2 비율 = 높이가 너비의 66.66%) */
    padding-bottom: 66.66%; 
    position: relative; /* 내부 이미지 배치를 위해 relative 설정 */
    border-radius: 2rem;
    overflow: hidden;
    box-shadow: 0 2rem 5rem rgba(0,0,0,0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* [수정] 내부 이미지: 부모 컨테이너에 꽉 차게 설정 */
.solution-image img {
    position: absolute; /* 부모 기준 절대 위치 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; /* 비율 유지하며 꽉 채우기 (잘릴 수 있음) */
    /* object-fit: contain; -> 이미지를 안 자르고 다 보여주려면 이걸로 변경 */
}

/* =========================================
   4. Delivery Section
   ========================================= */
.delivery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 4rem;
}

.delivery-card {
    background-color: var(--card-bg);
    padding: 4rem 3rem;
    border-radius: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s;
}

.delivery-card:hover { transform: translateY(-0.5rem); }

.delivery-card.highlight {
    border: 2px solid var(--toss-blue);
    background-color: rgba(49, 130, 246, 0.05);
}

.delivery-card h3 { font-size: 1.8rem; margin-bottom: 1rem; }
.delivery-card p { font-size: 1.2rem; color: var(--text-gray); margin-bottom: 2.5rem; }

.delivery-tag {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: 2rem;
    background-color: rgba(255, 255, 255, 0.1);
    font-size: 1.1rem;
    font-weight: 600;
}
.highlight .delivery-tag {
    background-color: var(--toss-blue);
    color: white;
}


/* =========================================
   5. Effect Section
   ========================================= */
.effect-box {
    margin-top: 4rem;
    background-color: var(--card-bg);
    border-radius: 2rem;
    padding: 5rem 4rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5rem;
    border: 1px solid var(--card-border);
}

.effect-visual {
    flex: 1.2;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.bar-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.bar-label {
    width: 5rem;
    font-weight: 700;
    color: var(--text-gray);
    font-size: 1.2rem;
}

.bar-container {
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
}

.bar {
    height: 3.5rem;
    border-radius: 1rem;
    position: relative;
    overflow: hidden;
}

.bar.old {
    width: 100%;
    background-color: #2C3542;
    box-shadow: inset 0 0 1rem rgba(0,0,0,0.3);
}

.bar.new {
    width: 8%;
    background: linear-gradient(90deg, var(--toss-blue), #5C9DFF);
    box-shadow: 0 0 2rem var(--hover-glow), inset 0 0 1rem rgba(255,255,255,0.3);
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 2rem var(--hover-glow); }
    50% { box-shadow: 0 0 3rem rgba(49, 130, 246, 0.7); }
    100% { box-shadow: 0 0 2rem var(--hover-glow); }
}

.bar-time {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-gray);
    white-space: nowrap;
}
.bar-time.highlight { color: var(--toss-blue); font-size: 1.5rem; }

.bar-icon {
    font-size: 1.8rem;
    color: #525D6F;
}
.bar-icon.highlight { color: var(--toss-blue); }


.effect-text { flex: 1; }
.effect-text h3 { font-size: 2.5rem; margin-bottom: 1.2rem; line-height: 1.3; }
.effect-text p { color: var(--text-gray); font-size: 1.2rem; }


/* =========================================
   6. Case Section (전면 디자인 개선)
   ========================================= */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

/* [개선] 카드 스타일 고급화 */
.case-card {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 2rem;
    /* 은은한 테두리 및 배경 그라데이션 */
    border: 1px solid transparent;
    background-image: linear-gradient(var(--card-bg), var(--card-bg)), 
                      linear-gradient(135deg, var(--card-border), rgba(49, 130, 246, 0.2));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-8px);
    /* 호버 시 파란색 발광 효과 */
    background-image: linear-gradient(var(--card-bg), var(--card-bg)), 
                      linear-gradient(135deg, var(--toss-blue), var(--hover-glow));
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.4), inset 0 0 2rem rgba(49, 130, 246, 0.1);
}

/* [개선] 헤더 (뱃지 + 아이콘) */
.case-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
}

.case-badge {
    display: inline-block;
    color: var(--toss-blue);
    background-color: rgba(49, 130, 246, 0.1);
    padding: 0.5rem 1.2rem;
    border-radius: 1rem;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.case-main-icon {
    font-size: 2.5rem;
    color: var(--toss-blue);
    opacity: 0.8;
}

.case-card h3 { font-size: 1.8rem; margin-bottom: 1rem; font-weight: 700; }
.case-desc { color: var(--text-gray); font-size: 1.15rem; margin-bottom: 2.5rem; flex-grow: 1; }

/* [개선] 결과 영역 디자인 */
.case-result {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.result-label {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-gray);
    font-size: 1.1rem;
}

.case-icon {
    font-size: 1.4rem;
    color: var(--toss-blue);
}

.result-value {
    color: white;
    font-size: 1.4rem;
    font-weight: 700;
}

.result-value .highlight {
    color: var(--toss-blue);
}


/* =========================================
   7. Target & CTA
   ========================================= */
.target-cta-section { padding-bottom: 10rem; }

.target-box {
    background-color: #1c232e;
    padding: 4rem;
    border-radius: 2rem;
    text-align: center;
    max-width: 55rem;
    margin: 0 auto 6rem;
}

.target-box h3 { font-size: 2rem; margin-bottom: 2.5rem; margin-top:0.5rem; }

.target-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    text-align: left;
    max-width: 35rem;
    margin: 0 auto;
}

.target-list li { font-size: 1.4rem; display: flex; align-items: center; }
.target-list .check { color: var(--toss-blue); margin-right: 1.2rem; font-weight: 900; }

.final-cta { text-align: center; }
.final-cta p { font-size: 1.6rem; margin-bottom: 2.5rem; font-weight: 600; }

.btn-detail-cta {
    display: inline-block;
    padding: 1.5rem 5rem;
    background-color: var(--toss-blue);
    color: white;
    font-size: 1.4rem;
    font-weight: 700;
    border-radius: 1.2rem;
    text-decoration: none;
    transition: all 0.2s;
}
.btn-detail-cta:hover {
    background-color: #1B64DA;
    transform: scale(1.02);
    box-shadow: 0 0.5rem 2rem rgba(49, 130, 246, 0.3);
}


/* =========================================
   Mobile Responsive
   ========================================= */
@media (max-width: 1024px) {
    .problem-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
        padding: 3rem;
    }
    .problem-card:hover { transform: translateY(-5px); }
    
    .effect-box { flex-direction: column; padding: 3rem; gap: 3rem; }
    .effect-visual { width: 100%; }
    .bar-group { flex-direction: column; align-items: flex-start; gap: 0.8rem; }
    .bar-container { width: 100%; }
    .bar-label { width: auto; }
    
    .case-grid { grid-template-columns: 1fr; }
    .case-card { min-height: auto; }
}

@media (max-width: 768px) {
    .section { padding: 5rem 0; }
    .hero-title { font-size: 2.5rem; }
    
    .problem-grid { grid-template-columns: 1fr; }
    .problem-card { align-items: center; text-align: center; }
    
    .solution-layout { grid-template-columns: 1fr; gap: 3rem; }
    .solution-image { order: -1; }
    
    .delivery-grid { grid-template-columns: 1fr; }
    
    .effect-text h3 { font-size: 2rem; }
    
    .final-cta p { font-size: 1.3rem; }
    .btn-detail-cta { width: 100%; text-align: center; }
    
    .case-result { flex-direction: column; align-items: flex-start; gap: 1rem; }
    .result-value { font-size: 1.3rem; }
}