@charset "UTF-8";

/* ==========================================================================
   (주)두웰이엔지 - 기술 목록 (Clean Pure White & Monochrome / Max Weight 600)
   ========================================================================== */

:root {
    --l-bg-white: #ffffff;
    --l-bg-light: #f8f9fa;
    --l-bg-card-hover: #f1f3f5;

    --l-text-primary: #373a3c;
    --l-text-secondary: #636c72;
    --l-text-muted: #959da5;

    --l-border-line: #dee2e6;
    --l-border-strong: #373a3c;

    --l-transition: 0.22s cubic-bezier(0.2, 0, 0, 1);
}

.tech-list-page {
    background-color: var(--l-bg-white) !important;
    color: var(--l-text-primary);
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
    letter-spacing: -0.02em;
    -webkit-font-smoothing: antialiased;
}

.tech-list-main-container {
    background-color: var(--l-bg-white);
}

.max-layout-width {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2.5rem;
    box-sizing: border-box;
}

/* ==========================================================================
   1. HERO BANNER ZONE
   ========================================================================== */
.tech-hero {
    position: relative;
    height: 55vh;
    min-height: 460px;
    width: 100%;
    background-color: #000000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--l-border-line);
    overflow: hidden;
}

.tech-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/img/tech/fsw_hero.png');
    background-size: cover;
    background-position: center;
    filter: none !important;
}

.hero-overlay-filter {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.50) 0%, rgba(0, 0, 0, 0.90) 100%);
    pointer-events: none;
}

.tech-hero-inner {
    position: relative;
    z-index: 5;
    padding-top: 4rem;
}

.eng-sub-badge {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.35em;
    color: rgba(255, 255, 255, 0.85);
    display: block;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.tech-hero-title {
    font-size: clamp(3rem, 5.5vw, 4.8rem);
    font-weight: 600;
    margin: 0 0 1rem 0;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: #ffffff;
}

.solid-white {
    color: #ffffff;
}

.hero-watermark-code {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    color: rgba(255, 255, 255, 0.6);
}

.tech-intro-lead {
    padding: 70px 0 35px;
    text-align: center;
    background-color: var(--l-bg-white);
    border-bottom: 1px solid var(--l-border-line);
}

.company-brand-txt {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--l-text-primary);
    margin: 0 0 8px 0;
    letter-spacing: -0.02em;
}

.company-lead-p {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--l-text-secondary);
    margin: 0;
}

/* ==========================================================================
   2. 4대 텍스트 언더라인 탭 네비게이션
   ========================================================================== */
.tech-underline-nav-section {
    padding: 20px 0 60px;
    background-color: var(--l-bg-white);
}

.underline-category-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4.5rem;
    border-bottom: 1px solid var(--l-border-line);
    padding-bottom: 0;
}

.nav-underline-item {
    position: relative;
    padding: 16px 8px 20px;
    text-decoration: none;
    cursor: pointer;
    background: transparent;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nav-underline-item span {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--l-text-muted);
    transition: color var(--l-transition);
    letter-spacing: -0.02em;
}

.nav-underline-item:hover span {
    color: var(--l-text-primary);
}

.nav-underline-item::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--l-border-strong);
    transition: width var(--l-transition);
}

.nav-underline-item.active span {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--l-text-primary);
}

.nav-underline-item.active::after {
    width: 100%;
}

/* ==========================================================================
   3. 썸네일 카탈로그 카드 그리드 레이아웃
   ========================================================================== */
.tech-catalog-section {
    padding: 0 0 140px;
    display: block;
    width: 100%;
    background-color: var(--l-bg-white);
}

.catalog-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    width: 100%;
}

.catalog-grid-card {
    background: var(--l-bg-white);
    border: 1px solid var(--l-border-line);
    display: flex;
    flex-direction: column;
    transition: border-color var(--l-transition), box-shadow var(--l-transition), transform var(--l-transition);
    overflow: hidden;
}

.catalog-grid-card:hover {
    border-color: var(--l-border-strong);
    transform: translateY(-6px);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.06);
}

.card-thumb-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background: #e9ecef;
    overflow: hidden;
    border-bottom: 1px solid var(--l-border-line);
}

.card-thumb-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: none;
    transition: transform var(--l-transition);
}

.catalog-grid-card:hover .card-thumb-frame img {
    transform: scale(1.04);
}

.card-code-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: var(--l-border-strong);
    border: 1px solid var(--l-border-strong);
    color: #ffffff;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    font-weight: 600;
    padding: 3px 8px;
    letter-spacing: 0.05em;
    z-index: 2;
}

.card-body {
    padding: 26px 24px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
    justify-content: space-between;
}

.card-title-group {
    margin-bottom: 12px;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--l-text-primary);
    margin: 0 0 8px 0;
    line-height: 1.35;
    letter-spacing: -0.02em;
}

.card-spec-tag {
    display: inline-block;
    background: var(--l-bg-light);
    border: 1px solid var(--l-border-line);
    color: var(--l-text-primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 3px 8px;
    border-radius: 2px;
}

.card-desc {
    font-size: 0.92rem;
    color: var(--l-text-secondary);
    line-height: 1.65;
    margin: 0 0 20px 0;
    word-break: keep-all;
    flex: 1;
}

.card-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding-top: 14px;
    border-top: 1px solid var(--l-border-line);
}

.tag-pill {
    font-size: 0.78rem;
    color: var(--l-text-muted);
    font-weight: 500;
    background: var(--l-bg-light);
    padding: 2px 8px;
    border: 1px solid var(--l-border-line);
    border-radius: 2px;
}

.card-btn-tray {
    margin-top: auto;
}

.btn-card-detail {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 18px;
    background: var(--l-bg-white);
    color: var(--l-text-primary);
    border: 1px solid var(--l-border-strong);
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
    box-sizing: border-box;
    transition: background-color var(--l-transition), color var(--l-transition);
}

.btn-card-detail .arrow {
    font-style: normal;
    transition: transform var(--l-transition);
}

.btn-card-detail:hover {
    background: var(--l-border-strong);
    color: #ffffff;
}

.btn-card-detail:hover .arrow {
    transform: translateX(4px);
}

/* ==========================================================================
   반응형 미디어 쿼리
   ========================================================================== */
@media (min-width: 1440px) {
    .max-layout-width {
        padding: 0 3.5rem;
    }
    .underline-category-nav {
        gap: 5.5rem;
    }
    .catalog-cards-grid {
        gap: 36px;
    }
}

@media (max-width: 1439px) and (min-width: 1024px) {
    .max-layout-width {
        padding: 0 2.5rem;
    }
    .tech-hero {
        min-height: 420px;
    }
    .tech-intro-lead {
        padding: 55px 0 25px;
    }
    .tech-underline-nav-section {
        padding: 15px 0 45px;
    }
    .underline-category-nav {
        gap: 3.5rem;
    }
    .nav-underline-item span {
        font-size: 1.15rem;
    }
    .nav-underline-item.active span {
        font-size: 1.25rem;
    }
    .tech-catalog-section {
        padding-bottom: 110px;
    }
    .catalog-cards-grid {
        gap: 24px;
    }
    .card-body {
        padding: 22px 20px 20px;
    }
    .card-title {
        font-size: 1.2rem;
    }
    .card-desc {
        font-size: 0.88rem;
    }
}

@media (max-width: 1023px) and (min-width: 768px) {
    .max-layout-width {
        padding: 0 2rem;
    }
    .tech-hero {
        height: 48vh;
        min-height: 380px;
    }
    .tech-hero-inner {
        padding-top: 3rem;
    }
    .tech-intro-lead {
        padding: 45px 0 20px;
    }
    .company-brand-txt {
        font-size: 1.55rem;
    }
    .tech-underline-nav-section {
        padding: 10px 0 40px;
    }
    .underline-category-nav {
        gap: 2.2rem;
    }
    .nav-underline-item span {
        font-size: 1.05rem;
    }
    .nav-underline-item.active span {
        font-size: 1.15rem;
    }
    .tech-catalog-section {
        padding-bottom: 90px;
    }
    .catalog-cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    .card-body {
        padding: 20px 18px 18px;
    }
    .card-title {
        font-size: 1.18rem;
    }
}

@media (max-width: 767px) {
    .max-layout-width {
        padding: 0 1.5rem;
    }
    .tech-hero {
        height: 42vh;
        min-height: 330px;
    }
    .tech-hero-inner {
        padding-top: 2rem;
    }
    .eng-sub-badge {
        font-size: 0.72rem;
        letter-spacing: 0.25em;
        margin-bottom: 0.7rem;
    }
    .tech-hero-title {
        font-size: 2.4rem;
    }
    .hero-watermark-code {
        font-size: 0.65rem;
        letter-spacing: 0.15em;
    }
    .tech-intro-lead {
        padding: 35px 0 15px;
    }
    .company-brand-txt {
        font-size: 1.35rem;
    }
    .company-lead-p {
        font-size: 0.92rem;
    }
    .tech-underline-nav-section {
        padding: 10px 0 30px;
    }
    .underline-category-nav {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        border-bottom: none;
    }
    .nav-underline-item {
        border-bottom: 1px solid var(--l-border-line);
        padding: 10px 0;
        width: 100%;
    }
    .nav-underline-item span {
        font-size: 0.98rem;
    }
    .nav-underline-item.active span {
        font-size: 1.02rem;
    }
    .nav-underline-item::after {
        display: none;
    }
    .nav-underline-item.active {
        border-bottom: 2px solid var(--l-border-strong);
    }
    .tech-catalog-section {
        padding-bottom: 70px;
    }
    .catalog-cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .card-thumb-frame {
        aspect-ratio: 16 / 9;
    }
    .card-code-badge {
        top: 10px;
        left: 10px;
        font-size: 0.68rem;
        padding: 2px 7px;
    }
    .card-body {
        padding: 18px 16px 16px;
    }
    .card-title {
        font-size: 1.15rem;
        margin-bottom: 6px;
    }
    .card-desc {
        font-size: 0.88rem;
        line-height: 1.6;
        margin-bottom: 16px;
    }
    .card-tag-row {
        gap: 6px;
        margin-bottom: 18px;
        padding-top: 12px;
    }
    .tag-pill {
        font-size: 0.74rem;
        padding: 2px 6px;
    }
    .btn-card-detail {
        padding: 12px 16px;
        font-size: 0.88rem;
    }
}

@media (max-width: 479px) {
    .max-layout-width {
        padding: 0 1rem;
    }
    .tech-hero {
        min-height: 290px;
    }
    .tech-hero-inner {
        padding-top: 1.5rem;
    }
    .tech-hero-title {
        font-size: 2rem;
    }
    .company-brand-txt {
        font-size: 1.2rem;
    }
    .company-lead-p {
        font-size: 0.85rem;
    }
    .nav-underline-item span {
        font-size: 0.9rem;
    }
    .nav-underline-item.active span {
        font-size: 0.94rem;
    }
    .tech-catalog-section {
        padding-bottom: 50px;
    }
    .catalog-cards-grid {
        gap: 16px;
    }
    .card-body {
        padding: 16px 14px 14px;
    }
    .card-title {
        font-size: 1.08rem;
    }
    .card-desc {
        font-size: 0.84rem;
    }
    .btn-card-detail {
        padding: 11px 14px;
        font-size: 0.84rem;
    }
}