/* ==========================================================================
   Public B2B Portal Style Landing Page CSS - KHSE Heatwave Kit
   Theme: High Trust Deep Royal Blue, Rich Whitespace & High Legibility
   ========================================================================== */

/* 1. Global Variables & Base Setup */
:root {
    --primary: #0f4c81;         /* Trustworthy Deep Royal Blue (Classic B2B/Gov Color) */
    --primary-hover: #0a365c;
    --accent: #2e6fa7;          /* Classic Slate Blue */
    --accent-light: #f0f6fc;    /* Very Soft Ice Blue background */
    
    /* Text colors */
    --text-main: #1e293b;       /* Slate-800 for strong contrast */
    --text-sub: #475569;        /* Slate-600 */
    --text-muted: #64748b;      /* Slate-500 */
    
    --bg-white: #ffffff;
    --bg-light: #f8fafc;        /* Soft neutral light */
    
    --border-color: #cbd5e1;    /* Slate-300 (Clear, visible borders for reliability) */
    --border-light: #e2e8f0;    /* Slate-200 */
    
    --font-sans: 'Pretendard Variable', -apple-system, BlinkMacSystemFont, system-ui, Roboto, 'Helvetica Neue', 'Segoe UI', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
    
    /* Subtle shadows */
    --shadow-card: 0 4px 12px rgba(15, 23, 42, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
    --shadow-hover: 0 12px 24px rgba(15, 23, 42, 0.06);
    
    --transition-base: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    text-size-adjust: 100%;
}

body {
    background-color: var(--bg-white);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.65;
    font-size: 16px;
    letter-spacing: -0.02em; /* Tight letter-spacing for refined Korean typography */
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Spacer padding for mobile sticky CTA button */
@media (max-width: 767px) {
    body {
        padding-bottom: 74px;
    }
}

/* 2. Layout Grid & Utilities */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4.5rem 0; /* Reduced padding (40% height reduction overall) */
    position: relative;
    border-bottom: 1px solid var(--border-light);
}

.bg-light {
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.25rem; /* Larger text size */
    font-weight: 800;
    line-height: 1.35;
    color: var(--text-main);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-sub);
    font-weight: 400;
    line-height: 1.6;
}

.section-subtitle-accent {
    font-size: 0.95rem;
    font-weight: 800;
    color: var(--primary);
    margin-top: 0.75rem;
    background-color: var(--accent-light);
    display: inline-block;
    padding: 0.35rem 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Grid layout */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-3 {
    grid-template-columns: 1fr;
}

/* 3. Navigation Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-base);
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.header-container {
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-image {
    height: 42px;
    max-width: 250px;
    object-fit: contain;
    display: block;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.phone-link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 700;
    font-size: 0.9rem;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: var(--transition-base);
}

.phone-link .icon {
    width: 1rem;
    height: 1rem;
    color: var(--primary);
}

.phone-link:hover {
    background-color: var(--accent-light);
    border-color: var(--primary);
    color: var(--primary);
}

.header-cta {
    display: none;
}

/* 4. Common Buttons */
.btn {
    display: inline-flex;
    white-space: nowrap;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-weight: 700;
    border-radius: 8px; /* Classic clean administrative borders */
    cursor: pointer;
    transition: var(--transition-base);
    border: 1px solid transparent;
    font-family: var(--font-sans);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 0.9rem 2.25rem;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(15, 76, 129, 0.15);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(15, 76, 129, 0.25);
}

.btn-secondary {
    background-color: var(--bg-light);
    border-color: var(--border-color);
    color: var(--text-sub);
}

.btn-secondary:hover {
    background-color: #cbd5e1;
    color: var(--text-main);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--accent-light);
    color: var(--primary-hover);
}

/* 5. 섹션1: Hero */
.hero-section {
    padding: 4rem 0;
    background: radial-gradient(circle at 80% 20%, rgba(15, 76, 129, 0.06) 0%, transparent 60%), linear-gradient(to bottom, #ffffff, #f8fafc);
    border-bottom: 1px solid var(--border-light);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(15, 76, 129, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(15, 76, 129, 0.02) 1px, transparent 1px);
    background-size: 30px 30px;
    background-position: center;
    mask-image: radial-gradient(circle at 80% 20%, black 40%, transparent 90%);
    -webkit-mask-image: radial-gradient(circle at 80% 20%, black 40%, transparent 90%);
    pointer-events: none;
}

.hero-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-badge-wrap {
    margin-bottom: 1rem;
}

.hero-badge {
    background-color: var(--accent-light);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 800;
    padding: 0.4rem 1rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

.hero-title {
    font-size: 2.5rem; /* Larger font size */
    font-weight: 800;
    line-height: 1.35;
    color: var(--text-main);
    margin-bottom: 1.25rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.65;
    color: var(--text-sub);
    max-width: 650px;
    margin-bottom: 2rem;
}

.hero-subtitle span {
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 700;
    display: block;
    margin-top: 0.5rem;
}

.hero-actions {
    display: flex;
    width: 100%;
    gap: 1rem;
    justify-content: center;
}

.hero-actions .btn {
    width: 100%;
    max-width: 280px;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.hero-trust-bar {
    display: flex;
    flex-wrap: nowrap;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: center;
    width: 100%;
}

.trust-item {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    padding: 0.4rem 0.85rem;
    border-radius: 6px;
    white-space: nowrap;
    flex-shrink: 1;
}

.check-icon-trust {
    color: var(--primary);
    font-weight: 900;
}

.hero-media {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    gap: 1rem;
}

.hero-image-card {
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0.75rem;
    width: 100%;
    max-width: 680px;
}

.hero-image {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* 6. 섹션2: 문제 제기 (Visual Split) */
.problem-layout-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
    margin-top: 1rem;
}

.problem-media {
    width: 100%;
    display: flex;
    justify-content: center;
}

.problem-visual-img {
    width: 100%;
    height: auto;
    max-height: 340px;
    object-fit: cover;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
}

.problem-cards-wrap {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.card-simple-mini.infographics {
    background-color: var(--bg-white);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--primary);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
}

.card-simple-mini.infographics:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.infographic-badge {
    font-size: 1.2rem;
    font-weight: 800;
    color: #ffffff;
    background-color: var(--primary);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 8px rgba(15, 76, 129, 0.2);
}

.card-simple-mini-body {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.card-simple-mini-title {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text-main);
}

.card-bullet-list {
    list-style: none;
    margin-top: 0.35rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.card-bullet-list li {
    font-size: 0.9rem;
    color: var(--text-sub);
    position: relative;
    padding-left: 0.85rem;
    line-height: 1.45;
}

.card-bullet-list li::before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: 800;
}

/* 7. 섹션3: KHSE 폭염키트 특징 (4열 그리드) */
.grid-4-column {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.feature-card-compact.new-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    text-align: left;
    position: relative;
    overflow: hidden;
}

.feature-card-compact.new-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: var(--transition-base);
}

.feature-card-compact.new-card:hover::before {
    opacity: 1;
}

.feature-card-compact.new-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.feature-badge-num {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--primary);
    opacity: 0.2;
    display: block;
    margin-bottom: 0.25rem;
}

.feature-card-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}

.feature-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.feature-bullet-list li {
    font-size: 0.88rem;
    color: var(--text-sub);
    position: relative;
    padding-left: 0.85rem;
    line-height: 1.5;
}

.feature-bullet-list li::before {
    content: "•";
    color: var(--primary);
    position: absolute;
    left: 0;
    font-weight: 800;
}

/* 8. 섹션4: KHSE 폭염키트 라인업 (3종 카드 그리드) */
.lineup-grid-3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.lineup-card.premium {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
    position: relative;
}

.lineup-card.premium:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.lineup-card.premium.recommended {
    border: 2.5px solid var(--primary);
    box-shadow: 0 10px 25px rgba(15, 76, 129, 0.1);
}

.lineup-card.premium.recommended:hover {
    box-shadow: 0 16px 35px rgba(15, 76, 129, 0.18);
}

.recommended-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(90deg, #f59e0b, #d97706);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    box-shadow: 0 3px 6px rgba(217, 119, 6, 0.2);
    z-index: 10;
    letter-spacing: 0.05em;
}

@media (min-width: 768px) {
    .lineup-card.premium.recommended {
        transform: scale(1.03);
        z-index: 5;
    }
    .lineup-card.premium.recommended:hover {
        transform: translateY(-4px) scale(1.03);
    }
}

.lineup-media {
    height: 300px;
    background: linear-gradient(135deg, #ffffff, var(--bg-light));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.lineup-media img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition-base);
}

.lineup-card.premium:hover .lineup-media img {
    transform: scale(1.04);
}

.lineup-info {
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.lineup-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
    text-align: center;
}

.lineup-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
    margin-bottom: 1rem;
}

.lineup-bullets li {
    font-size: 0.9rem;
    color: var(--text-sub);
    line-height: 1.55;
}

.lineup-bullets li strong {
    color: var(--text-main);
}

/* 9. 섹션5: 구성품 상세 (개별 상세 3종 카드) */
.detail-item-card.premium {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
    transition: var(--transition-base);
}

.detail-item-card.premium:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.detail-item-media {
    height: 360px;
    background: linear-gradient(135deg, #ffffff, var(--bg-light));
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid var(--border-light);
    padding: 1rem;
}

.detail-item-media img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.detail-item-info {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.detail-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-main);
}

.detail-desc {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.55;
}

.detail-desc-recommend {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 700;
    margin-top: 0.25rem;
}

/* 10. 섹션6: 주요 납품 대상 (이미지 비주얼 카드 6열 그리드) */
.targets-image-grid-6 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.target-image-card {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    height: 180px;
    background-size: cover;
    background-position: center;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
}

.target-image-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.target-image-overlay {
    position: absolute;
    inset: 0;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.92) 0%, rgba(15, 23, 42, 0.75) 100%);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 0.2rem;
}

.target-image-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
}

/* 11. 섹션7: 기관·기업 맞춤 제작 서비스 (Bespoke 3열 카드) */
.custom-media-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.custom-media-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    display: flex;
    flex-direction: column;
}

.media-aspect-box {
    height: 200px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
}

.media-aspect-box img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.media-card-text {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bullet-tag {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary);
    background-color: var(--accent-light);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.media-card-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-main);
}

.media-card-desc {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.5;
}

.custom-cta-wrap {
    text-align: center;
}

/* 12. 섹션8: 자주 묻는 질문 (FAQ 아코디언) */
.faq-accordion-container {
    max-width: 850px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.faq-accordion-item {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    transition: var(--transition-base);
}

.faq-accordion-item.active {
    border-color: var(--primary);
}

.faq-accordion-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: none;
    border: none;
    padding: 1.35rem 1.75rem;
    text-align: left;
    cursor: pointer;
    font-family: var(--font-sans);
    outline: none;
}

.faq-question {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text-main);
    padding-right: 1rem;
}

.faq-icon-arrow {
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform 0.2s ease;
}

.faq-accordion-item.active .faq-icon-arrow {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: var(--bg-light);
}

.faq-accordion-body {
    padding: 1.5rem 1.75rem;
    font-size: 0.92rem;
    color: var(--text-sub);
    line-height: 1.65;
    border-top: 1px solid var(--border-light);
}

/* 13. 섹션8: 견적 신청 (B2B Banner Card Layout) */
.inquiry-banner-card {
    background: linear-gradient(135deg, rgba(15, 76, 129, 0.95) 0%, rgba(10, 54, 92, 0.98) 100%), url('assets/images/field-worker.webp') no-repeat center center;
    background-size: cover;
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 3.5rem 1.5rem;
    box-shadow: var(--shadow-card);
    text-align: center;
    color: #ffffff;
}

.inquiry-banner-content {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
}

.inquiry-banner-content .section-tag {
    color: #a5f3fc;
}

.inquiry-banner-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.3;
}

.inquiry-banner-desc {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #e2e8f0;
}

.inquiry-btn-wrap {
    margin-top: 1rem;
}

.inquiry-btn-wrap .btn-primary {
    background-color: #ffffff;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.inquiry-btn-wrap .btn-primary:hover {
    background-color: #f1f5f9;
    color: var(--primary-hover);
}

/* 14. Footer */
.footer {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-color);
    padding: 2.5rem 0;
    font-size: 0.85rem;
    color: var(--text-sub);
}

.footer-bottom-flex {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: flex-start;
    text-align: left;
}

.footer-logo-image {
    height: 57px;
    object-fit: contain;
    display: block;
}

.footer-text-content {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.footer-text-info {
    line-height: 1.6;
}

.footer-text-info a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
}

.footer-text-info a:hover {
    text-decoration: underline;
}

.footer-copyright {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* 15. Mobile Sticky Floating CTA Bar */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 0.75rem 1.25rem;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    display: block;
}

.mobile-sticky-cta .btn {
    width: 100%;
    box-shadow: none;
}

.targets-image-grid-4 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.custom-support-grid-5 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.custom-support-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.custom-support-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.support-icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--accent-light);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
    transition: var(--transition-base);
}

.custom-support-card:hover .support-icon-wrap {
    background-color: var(--primary);
    color: #ffffff;
    transform: scale(1.1);
}

.support-svg-icon {
    width: 24px;
    height: 24px;
}

.support-title {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-main);
}

.support-desc {
    font-size: 0.88rem;
    color: var(--text-sub);
    line-height: 1.5;
}

@media (max-width: 767px) {
    .inquiry-banner-card {
        padding: 3rem 1rem;
    }
    .inquiry-banner-title {
        font-size: 1.75rem;
    }
    .inquiry-banner-desc {
        font-size: 1rem;
    }
}

@media (min-width: 768px) {
    .mobile-sticky-cta {
        display: none;
    }
}

/* ==========================================================================
   Responsive Overrides (Tablet & Desktop)
   ========================================================================== */

/* 1. Tablet Viewports (768px and up) */
@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-actions {
        width: auto;
    }
    
    .hero-actions .btn {
        width: 220px !important;
        padding-left: 1.5rem !important;
        padding-right: 1.5rem !important;
    }

    .targets-image-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .lineup-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .components-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .custom-support-grid-5 {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-grid-inner {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom-flex {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
        align-items: center;
    }
}

/* 2. Desktop Viewports (992px and up) */
@media (min-width: 992px) {
    .section {
        padding: 5.5rem 0;
    }
    
    .section-title {
        font-size: 2.5rem;
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .header-cta {
        display: inline-flex;
    }
    
    /* Hero layout */
    .hero-container {
        flex-direction: row;
        align-items: center;
        gap: 3rem;
    }
    
    .hero-content {
        flex: 1;
        align-items: flex-start;
        text-align: left;
    }
    
    .hero-title {
        font-size: 3.25rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
        margin-bottom: 2.5rem;
    }
    
    .hero-actions {
        justify-content: flex-start;
    }
    
    .hero-media {
        flex: 1.5;
        flex-direction: column;
        justify-content: center;
        align-items: flex-end;
        gap: 1rem;
    }
    
    .hero-image-card {
        padding: 1rem;
        max-width: 680px;
    }

    /* Section 2: Problem split layout */
    .problem-layout-split {
        grid-template-columns: 1fr 1.3fr;
        gap: 4.5rem;
    }

    /* Section 3: 4 Column Grid */
    .grid-4-column {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Section 6: Target segments */
    .targets-image-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }

    /* Inquiry Form Card Padding Desktop */
    .inquiry-form-card {
        padding: 3.5rem 3rem;
    }

    /* Section 7: 5 Column Custom Gallery on Desktop */
    .custom-support-grid-5 {
        grid-template-columns: repeat(5, 1fr);
    }

    .inquiry-banner-card {
        padding: 5rem 3rem;
    }
    .inquiry-banner-title {
        font-size: 2.5rem;
    }
}

/* Lineup Grid and Pricing Styles */
.lineup-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.lineup-price-box {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    background-color: var(--accent-light);
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
}

.price-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-muted);
}

.price-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.price-vat {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.lineup-desc-text {
    font-size: 0.92rem;
    color: var(--text-sub);
    line-height: 1.5;
}

.lineup-recommend-box {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 0.5rem;
}

.recommend-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-main);
}

.recommend-tag {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary);
    background-color: var(--accent-light);
    border: 1px solid var(--border-light);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.lineup-notices-container {
    width: 100%;
    margin-top: 3rem;
    padding: 1.5rem;
    background-color: var(--bg-light);
    border: 1px solid var(--border-light);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    clear: both;
}

.lineup-notice-item {
    font-size: 0.85rem;
    color: var(--text-sub);
    line-height: 1.5;
    margin: 0;
}

/* Components Grid 2-column layout */
.components-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

/* Feature card description compact style */
.feature-card-desc {
    font-size: 0.9rem;
    color: var(--text-sub);
    line-height: 1.5;
}

/* Inquiry form card layout */
.inquiry-form-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem 1.5rem;
    box-shadow: var(--shadow-card);
    max-width: 800px;
    margin: 0 auto;
}

.direct-inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-grid-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.form-group-item {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-main);
}

.form-label .required {
    color: #ef4444;
}

.form-group-item input,
.form-group-item select,
.form-group-item textarea {
    width: 100%;
    background-color: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.8rem 1.1rem;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    color: var(--text-main);
    transition: var(--transition-base);
}

.form-group-item input:focus,
.form-group-item select:focus,
.form-group-item textarea:focus {
    outline: none;
    border-color: var(--primary);
    background-color: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.08);
}

.textarea-item {
    width: 100%;
}

.form-submit-wrap {
    margin-top: 1rem;
}

/* Mobile Hero buttons wrapping stack override */
@media (max-width: 767px) {
    /* Hero actions stack & trust bar */
    .hero-actions {
        flex-direction: column !important;
        align-items: center !important;
        gap: 0.75rem !important;
    }
    .hero-trust-bar {
        gap: 0.35rem !important;
        margin-top: 1.5rem !important;
    }
    .trust-item {
        font-size: 0.7rem !important;
        padding: 0.3rem 0.5rem !important;
        gap: 0.2rem !important;
    }
    .hero-actions .btn {
        width: 100% !important;
        max-width: 280px !important;
    }

    /* Lineup 2-column mobile layout overrides */
    .lineup-grid-2 {
        gap: 0.75rem !important;
    }
    .lineup-media {
        height: 180px !important;
        padding: 0.5rem !important;
    }
    .lineup-info {
        padding: 0.85rem 0.6rem !important;
        gap: 0.4rem !important;
    }
    .lineup-title {
        font-size: 0.95rem !important;
        margin-bottom: 0.1rem !important;
    }
    .lineup-price-box {
        padding: 0.4rem 0.5rem !important;
        margin-bottom: 0.1rem !important;
    }
    .price-value {
        font-size: 0.92rem !important;
    }
    .price-vat {
        font-size: 0.7rem !important;
    }
    .lineup-desc-text {
        font-size: 0.78rem !important;
        line-height: 1.4 !important;
    }
    .lineup-recommend-box {
        gap: 0.2rem !important;
        padding-top: 0.2rem !important;
    }
    .recommend-title {
        font-size: 0.72rem !important;
    }
    .recommend-tag {
        font-size: 0.65rem !important;
        padding: 0.05rem 0.25rem !important;
    }
    .lineup-card.premium .btn {
        padding: 0.5rem 0.75rem !important;
        font-size: 0.85rem !important;
    }
    
    /* Components 2-column mobile layout overrides */
    .components-grid-2 {
        gap: 0.75rem !important;
    }
    .detail-item-media {
        height: 220px !important;
        padding: 0.4rem !important;
    }
    .detail-item-info {
        padding: 0.6rem !important;
        gap: 0.25rem !important;
    }
    .detail-title {
        font-size: 0.9rem !important;
    }
    .detail-desc {
        font-size: 0.75rem !important;
        line-height: 1.35 !important;
    }
    .detail-desc-recommend {
        font-size: 0.72rem !important;
        margin-top: 0.05rem !important;
    }
}

/* ==========================================================================
   Image Enlargement Modal
   ========================================================================== */
.image-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    padding-top: 80px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(15, 23, 42, 0.95); /* Deep slate semi-transparent bg */
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.image-modal.show {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 1;
}

.modal-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 800px;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: scale(0.92);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.image-modal.show .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 30px;
    right: 30px;
    color: #cbd5e1;
    font-size: 44px;
    font-weight: 300;
    transition: var(--transition-base);
    cursor: pointer;
    line-height: 1;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.05);
}

.modal-close:hover {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.15);
    transform: rotate(90deg);
}

.modal-caption {
    margin-top: 15px;
    color: #f8fafc;
    font-size: 1.25rem;
    font-weight: 800;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
    letter-spacing: -0.01em;
}

/* Image zoom cursor hover indicators, disabled in edit mode */
body:not(.edit-mode-active) .lineup-media img,
body:not(.edit-mode-active) .detail-item-media img,
body:not(.edit-mode-active) .case-image-box img {
    cursor: zoom-in;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
}

body:not(.edit-mode-active) .lineup-media img:hover,
body:not(.edit-mode-active) .detail-item-media img:hover,
body:not(.edit-mode-active) .case-image-box img:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* ==========================================================================
   맞춤 제작 실제 사례 (Case Studies) Styling
   ========================================================================== */
.custom-cases-wrap {
    margin-top: 4rem;
    border-top: 1px solid var(--border-light);
    padding-top: 3.5rem;
    width: 100%;
}

.custom-cases-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
    text-align: center;
    margin-bottom: 2rem;
    font-family: var(--font-sans);
}

.custom-cases-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.custom-case-card {
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.custom-case-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary);
}

.case-image-box {
    height: 280px;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-light);
    overflow: hidden;
}

.case-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    transition: var(--transition-base);
}

.case-card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.case-badge {
    align-self: flex-start;
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--primary);
    background-color: var(--accent-light);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    border: 1px solid var(--border-light);
}

.case-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-main);
    line-height: 1.45;
}

@media (min-width: 768px) {
    .custom-cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* Lineup Card Components Checklist styles */
.lineup-components-box {
    margin-top: 1rem;
    margin-bottom: 1.25rem;
    padding: 0.85rem;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    text-align: left;
}

.components-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-main);
    display: block;
    margin-bottom: 0.6rem;
    border-bottom: 1px solid #e2e8f0;
    padding-bottom: 0.35rem;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.45rem 0.6rem;
}

.component-item {
    font-size: 0.78rem;
    color: var(--text-sub);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-weight: 500;
    line-height: 1.2;
}

.component-item.highlight {
    color: var(--primary);
    font-weight: 700;
}

.component-item.disabled {
    color: #94a3b8;
    text-decoration: line-through;
}

.component-item .check-icon {
    color: #10b981;
    font-weight: 800;
    font-style: normal;
}

.component-item .uncheck-icon {
    color: #ef4444;
    font-weight: 800;
    font-style: normal;
}

/* Hero Download Button styles */
.download-btn {
    width: 100%;
    max-width: 680px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.download-btn .icon {
    width: 20px;
    height: 20px;
}