:root {
    --primary-accent: #397BFA;
    --dark-navy: #101827;
    --light-bg: #F3F6FA;
    --white: #FFFFFF;
    --border-color: #E5E7EB;
    --text-dark-primary: #101827;
    --text-dark-secondary: #4B5563;
    --text-light-primary: #FFFFFF;
    --text-light-secondary: #D1D5DB;
    --font-family-primary: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --card-border-radius: 16px;
    --button-border-radius: 10px;
    --box-shadow: 0 8px 24px rgba(16, 24, 39, 0.06);
    --box-shadow-hover: 0 14px 32px rgba(57, 123, 250, 0.14);
    --transition-standard: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-family-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-dark-primary);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a,
a:hover,
a:focus {
    text-decoration: none;
    transition: var(--transition-standard);
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
    font-family: inherit;
    transition: var(--transition-standard);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid var(--primary-accent);
    outline-offset: 2px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-family: var(--font-family-primary);
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.02em;
    color: inherit;
}

h1 {
    font-size: clamp(2.25rem, 5vw, 3.25rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

h4 {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
}

h5 {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
}

h6 {
    font-size: 0.95rem;
}

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

ul,
ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {

    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        word-break: keep-all;
        overflow-wrap: break-word;
    }

    a,
    p,
    span,
    div {
        overflow-wrap: break-word;
    }
}

/* ===== header ===== */
header#header {
    overflow: hidden;
}

#header .header-nav-wrap,
#header .navbar-nav,
#header .nav-link {
    white-space: nowrap;
}

@media (min-width: 992px) and (max-width: 1199.98px) {
    #header .navbar-brand span:last-child {
        font-size: 1rem !important;
    }

    #header .nav-link {
        padding-inline: .35rem !important;
        font-size: .78rem !important;
    }
}

#header .nav-link {
    transition: color 0.2s ease-in-out;
}

#header .nav-link:hover {
    color: var(--primary-accent) !important;
}

.mobile-menu-overlay.open {
    display: flex !important;
}

.mobile-menu-overlay {
    transition: opacity 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

/* ===== hero_section ===== */
#hero {
    overflow: hidden;
    background-color: var(--dark-navy, #101827);
    background: radial-gradient(circle at 85% 15%, rgba(57, 123, 250, 0.22) 0%, rgba(16, 24, 39, 1) 65%);
    min-height: 85vh
}

.hero-section {
    width: 100%
}

.badge-box {
    background: rgba(57, 123, 250, 0.12);
    border: 1px solid rgba(57, 123, 250, 0.3)
}

.badge-text {
    color: #397BFA;
    font-size: 0.85rem;
    font-weight: 600
}

.text-accent-cyan {
    color: #397BFA
}

.text-accent-blue {
    color: #397BFA
}

.text-light-muted {
    color: var(--text-light-secondary, #D1D5DB)
}

.hero-title {
    font-size: clamp(1.125rem, 3.2vw, 2.75rem);
    line-height: 1.2;
    hyphens: auto;
    letter-spacing: -0.03em
}

.hero-subtitle {
    font-size: clamp(0.95rem, 1.4vw, 1.15rem);
    line-height: 1.6;
    color: var(--text-light-secondary, #D1D5DB);
    hyphens: auto;
    word-break: keep-all
}

.btn-primary-accent {
    background-color: var(--primary-accent, #397BFA);
    color: var(--text-light-primary, #FFFFFF);
    border: 1px solid var(--primary-accent, #397BFA);
    font-weight: 600;
    transition: all .25s ease;
    text-decoration: none
}

.btn-primary-accent:hover,
.btn-primary-accent:focus {
    background-color: #2a65d6;
    border-color: #2a65d6;
    color: var(--text-light-primary, #FFFFFF)
}

.btn-outline-light-tech {
    background: transparent;
    color: var(--text-light-primary, #FFFFFF);
    border: 1px solid rgba(255, 255, 255, 0.25);
    font-weight: 600;
    transition: all .25s ease;
    text-decoration: none
}

.btn-outline-light-tech:hover,
.btn-outline-light-tech:focus {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-accent, #397BFA);
    color: var(--text-light-primary, #FFFFFF)
}

.border-top-dark {
    border-top: 1px solid rgba(255, 255, 255, 0.1)
}

.stat-num {
    font-size: 1.15rem;
    color: var(--text-light-primary, #FFFFFF)
}

.stat-desc {
    font-size: 0.75rem
}

.hero-img-backdrop {
    background: radial-gradient(circle, rgba(57, 123, 250, 0.3) 0%, rgba(57, 123, 250, 0) 70%);
    filter: blur(32px);
    pointer-events: none
}

.hero-image-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06)
}

.hero-main-img {
    object-fit: cover;
    aspect-ratio: 4/3
}

@media(max-width:767.98px) {
    #hero {
        background: linear-gradient(180deg, #07111f 0%, #101827 70%);
    }

    #hero .hero-content-wrapper {
        padding-top: 1.5rem !important;
    }

    .hero-title {
        font-size: clamp(1.65rem, 8vw, 2.2rem) !important;
        line-height: 1.2 !important;
        color: #fff !important;
        text-shadow: 0 2px 16px rgba(0, 0, 0, .55)
    }

    .hero-subtitle {
        font-size: 1rem !important;
        line-height: 1.55 !important;
        color: #f3f6fa !important;
        text-shadow: 0 1px 10px rgba(0, 0, 0, .5)
    }

    .badge-text {
        font-size: 0.75rem
    }

    .stat-num {
        font-size: 0.95rem
    }

    .stat-desc {
        font-size: 0.7rem
    }
}

.cart-success-message {
    position: fixed;
    top: 1rem;
    left: 50%;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: .65rem;
    width: min(92vw, 520px);
    padding: .9rem 1rem;
    border-radius: 12px;
    background: #0f766e;
    color: #fff;
    box-shadow: 0 14px 35px rgba(16, 24, 39, .24);
    opacity: 0;
    transform: translate(-50%, -16px);
    transition: opacity .2s ease, transform .2s ease;
    font-weight: 600;
}

.cart-success-message.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.cart-success-message i {
    flex: 0 0 auto;
    font-size: 1.45rem;
}

/* ===== categories_section ===== */
#catalog .category-card {
    transition: transform .3s ease, box-shadow .3s ease;
    cursor: default;
}

#catalog .category-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 14px 28px rgba(16, 24, 39, .08) !important;
}

#catalog .category-img {
    transition: transform .5s ease;
}

#catalog .category-card:hover .category-img {
    transform: scale(1.08);
}

#catalog .category-badge {
    backdrop-filter: blur(4px);
    border: 1px solid var(--border-color);
}

@media(max-width:767.98px) {
    #catalog h2 {
        font-size: 1rem;
        line-height: 1.2;
        hyphens: auto;
    }

    #catalog h3 {
        font-size: .875rem;
        line-height: 1.2;
        hyphens: auto;
    }
}

/* ===== popular_products_section ===== */
#popular-products {
    width: 100%;
    word-break: keep-all;
    hyphens: auto;
}

#popular-products .card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border: 1px solid var(--border-color) !important;
}

#popular-products .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(16, 24, 39, 0.08) !important;
}

#popular-products .cartPushBtn {
    border: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: background-color 0.2s ease, opacity 0.2s ease;
}

#popular-products .cartPushBtn:hover {
    opacity: 0.92;
    color: var(--text-light-primary) !important;
}

#popular-products .card-img-top {
    height: 220px;
    object-fit: cover;
}

@media (max-width: 767.98px) {
    #popular-products h2 {
        font-size: 1rem !important;
        line-height: 1.25;
    }

    #popular-products h3 {
        font-size: 0.875rem !important;
        line-height: 1.2;
    }
}

/* ===== lifestyle_tech_section ===== */
#lifestyle {
    width: 100%;
    position: relative;
}

#lifestyle .js-lifestyle-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#lifestyle .js-lifestyle-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 32px rgba(16, 24, 39, 0.08) !important;
}

#lifestyle .js-card-img {
    transition: transform 0.5s ease;
}

#lifestyle .js-lifestyle-card:hover .js-card-img {
    transform: scale(1.05);
}

#lifestyle a.btn:hover {
    filter: brightness(0.92);
}

@media (max-width: 767.98px) {
    #lifestyle h2 {
        font-size: 1rem !important;
        line-height: 1.3 !important;
    }

    #lifestyle h3 {
        font-size: 0.875rem !important;
        line-height: 1.2 !important;
    }
}

/* ===== new_arrivals_section ===== */
#new-arrivals {
    overflow: hidden;
}

#new-arrivals .card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    border-color: var(--border-color);
}

#new-arrivals .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(16, 24, 39, 0.08) !important;
}

#new-arrivals .btn {
    border-radius: 8px;
    font-size: 0.925rem;
}

@media (max-width: 767.98px) {
    #new-arrivals h2 {
        font-size: 1rem !important;
        line-height: 1.25;
        hyphens: auto;
    }

    #new-arrivals h3 {
        font-size: 0.875rem !important;
        line-height: 1.25;
        hyphens: auto;
    }
}

/* ===== advantages_section ===== */
#advantages {
    background-color: var(--light-bg);
    overflow: hidden;
    width: 100%;
}

#advantages .js-advantage-card {
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    border: 1px solid var(--border-color);
}

#advantages .js-advantage-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(16, 24, 39, 0.08) !important;
    border-color: rgba(57, 123, 250, 0.4) !important;
}

@media (max-width: 767.98px) {
    #advantages h2 {
        font-size: 1rem !important;
        line-height: 1.25 !important;
        hyphens: auto;
    }

    #advantages h3 {
        font-size: 0.875rem !important;
        line-height: 1.2 !important;
        hyphens: auto;
    }

    #advantages p {
        font-size: 0.8125rem !important;
        hyphens: auto;
    }
}

/* ===== use_cases_section ===== */
#use-cases {
    position: relative;
    width: 100%;
}

#use-cases .js-scenario-pill {
    background-color: var(--white);
    color: var(--text-dark-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.25s ease;
}

#use-cases .js-scenario-pill:hover {
    border-color: var(--primary-accent);
    color: var(--primary-accent);
}

#use-cases .js-scenario-pill.active {
    background-color: var(--primary-accent);
    color: var(--white);
    border-color: var(--primary-accent);
    box-shadow: 0 4px 12px rgba(57, 123, 250, 0.25);
}

#use-cases .card {
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#use-cases .card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(16, 24, 39, 0.08) !important;
}

@media (max-width: 767.98px) {
    #use-cases h2 {
        font-size: 1rem !important;
        line-height: 1.25;
        hyphens: auto;
    }

    #use-cases h3 {
        font-size: 0.875rem !important;
        line-height: 1.25;
        hyphens: auto;
    }

    #use-cases .js-scenario-pill {
        font-size: 0.85rem;
        padding-left: 0.85rem !important;
        padding-right: 0.85rem !important;
    }
}

/* ===== about_section ===== */
.about-section {
    width: 100%;
    color: var(--text-dark-primary);
    hyphens: auto;
}

.text-dark-primary {
    color: var(--text-dark-primary) !important;
}

.text-dark-secondary {
    color: var(--text-dark-secondary) !important;
}

.text-primary-accent {
    color: var(--primary-accent) !important;
}

.about-badge {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
}

.about-image-wrapper img {
    height: 420px;
    object-fit: cover;
}

.about-stat-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background-color: var(--white);
    border: 1px solid var(--border-color);
    min-width: 240px;
}

.about-icon-circle {
    width: 44px;
    height: 44px;
    background-color: var(--light-bg);
    color: var(--primary-accent);
}

.about-feature-card {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
}

.about-modal-box {
    background-color: var(--light-bg);
    border: 1px solid var(--border-color);
}

.btn-primary {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
    color: var(--white) !important;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: #2765db;
    border-color: #2765db;
    color: var(--white) !important;
}

.btn-secondary {
    background-color: var(--light-bg);
    border-color: var(--border-color);
    color: var(--text-dark-primary) !important;
}

.btn-secondary:hover {
    background-color: #e2e8f0;
    color: var(--text-dark-primary) !important;
}

@media (max-width: 767.98px) {
    .about-title {
        font-size: 1rem !important;
        line-height: 1.25 !important;
    }

    .about-section h3 {
        font-size: 0.875rem !important;
        line-height: 1.25 !important;
    }

    .about-image-wrapper img {
        height: 280px;
    }

    .about-stat-badge {
        position: static;
        margin-top: 1rem;
        width: 100%;
    }
}

/* ===== faq_section ===== */
#faq {
    overflow: hidden;
}

#faq .accordion-item {
    border: 1px solid var(--border-color) !important;
}

#faq .accordion-button:focus {
    box-shadow: none;
    border-color: transparent;
}

#faq .accordion-button:not(.collapsed) {
    background-color: var(--white);
    color: var(--primary-accent) !important;
}

#faq .accordion-button::after {
    filter: grayscale(100%);
    transition: transform 0.2s ease-in-out;
}

#faq .accordion-button:not(.collapsed)::after {
    filter: none;
}

@media (max-width:767.98px) {
    #faq h2 {
        font-size: 1rem;
        line-height: 1.2;
        hyphens: auto;
    }

    #faq h3 {
        font-size: 0.875rem;
        line-height: 1.2;
        hyphens: auto;
    }

    #faq .accordion-button {
        padding: 0.75rem 1rem !important;
        font-size: 0.875rem;
    }

    #faq .accordion-body {
        padding: 0.75rem 1rem !important;
        font-size: 0.8125rem;
    }
}

/* ===== contact_section ===== */
#contact {
    overflow: hidden;
    background-color: var(--light-bg);
    hyphens: auto;
}

#contact .contact-badge {
    font-size: 0.8125rem;
    background-color: rgba(57, 123, 250, 0.12);
    color: var(--primary-accent);
}

#contact .contact-title {
    font-size: 1.875rem;
    line-height: 1.3;
    color: var(--text-dark-primary);
}

#contact .contact-desc {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-dark-secondary);
}

#contact .contact-icon-box {
    width: 44px;
    height: 44px;
    background-color: rgba(57, 123, 250, 0.1);
    color: var(--primary-accent);
}

#contact .contact-item-label {
    font-size: 0.8125rem;
    color: var(--text-dark-secondary);
}

#contact .contact-item-value {
    font-size: 0.9375rem;
    color: var(--text-dark-primary);
    line-height: 1.5;
}

#contact .contact-link {
    color: var(--text-dark-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

#contact .contact-link:hover {
    color: var(--primary-accent);
}

#contact .hours-title {
    font-size: 0.875rem;
    color: var(--text-dark-primary);
}

#contact .hours-info {
    font-size: 0.8125rem;
    color: var(--text-dark-secondary);
    line-height: 1.5;
}

#contact .text-accent {
    color: var(--primary-accent);
}

#contact .form-title {
    font-size: 1.375rem;
    line-height: 1.3;
    color: var(--text-dark-primary);
}

#contact .form-subtitle {
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-dark-secondary);
}

#contact .form-label {
    font-size: 0.875rem;
    color: var(--text-dark-primary);
}

#contact .contact-input,
#contact .contact-textarea {
    border: 1px solid var(--border-color);
    color: var(--text-dark-primary);
    background-color: var(--white);
    font-size: 0.9375rem;
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

#contact .contact-input::placeholder,
#contact .contact-textarea::placeholder {
    color: #9CA3AF;
}

#contact .contact-input:focus,
#contact .contact-textarea:focus {
    border-color: var(--primary-accent);
    box-shadow: 0 0 0 3px rgba(57, 123, 250, 0.15);
    outline: none;
}

#contact .contact-checkbox {
    border-color: var(--border-color);
    cursor: pointer;
}

#contact .contact-checkbox:checked {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
}

#contact .consent-label {
    font-size: 0.8125rem;
    color: var(--text-dark-secondary);
    cursor: pointer;
}

#contact .consent-link {
    color: var(--primary-accent);
    text-decoration: underline;
}

#contact .contact-submit-btn {
    background-color: var(--primary-accent);
    border-color: var(--primary-accent);
    color: var(--white);
    border-radius: 8px;
    font-size: 1rem;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

#contact .contact-submit-btn:hover {
    background-color: #2b68dc;
    border-color: #2b68dc;
    color: var(--white);
}

#contact .contact-submit-btn:active {
    transform: scale(0.99);
}

@media (max-width: 767.98px) {
    #contact .contact-title {
        font-size: 1rem;
        line-height: 1.25;
    }

    #contact .form-title {
        font-size: 0.875rem;
        line-height: 1.25;
    }

    #contact .contact-input,
    #contact .contact-textarea {
        font-size: 0.875rem;
        padding: 0.625rem 0.875rem;
    }

    #contact .contact-submit-btn {
        font-size: 0.9375rem;
    }
}

/* ===== footer ===== */
#footer.footer-section {
    background-color: var(--dark-navy);
    overflow: hidden;
    width: 100%;
    color: var(--text-light-secondary);
    font-family: sans-serif;
    hyphens: auto;
}

#footer .footer-border {
    border-color: rgba(229, 231, 235, 0.15) !important;
}

#footer .footer-logo-text {
    display: inline-block;
}

#footer .brand-title {
    color: var(--text-light-primary);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

#footer .footer-desc {
    color: var(--text-light-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    max-width: 420px;
}

#footer .footer-heading {
    color: var(--text-light-primary);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.25;
    margin-bottom: 0.75rem;
}

#footer .footer-link {
    color: var(--text-light-secondary);
    font-size: 0.875rem;
    transition: color 0.2s ease-in-out;
}

#footer .footer-link:hover,
#footer .footer-link:focus {
    color: var(--primary-accent);
}

#footer .cs-info {
    color: var(--text-light-secondary);
    font-size: 0.875rem;
}

#footer .cs-item {
    line-height: 1.5;
    color: var(--text-light-secondary);
}

#footer .cs-label {
    color: var(--text-light-primary);
    font-weight: 500;
}

#footer .cs-holiday {
    color: var(--text-light-secondary);
    font-size: 0.8125rem;
    opacity: 0.9;
}

#footer .footer-policy-link {
    color: var(--text-light-secondary);
    font-size: 0.8125rem;
    transition: color 0.2s ease-in-out;
}

#footer .footer-policy-link:hover,
#footer .footer-policy-link:focus {
    color: var(--white);
    text-decoration: underline !important;
}

#footer .footer-copy {
    color: var(--text-light-secondary);
    font-size: 0.8125rem;
}

@media (max-width: 767.98px) {
    #footer .footer-heading {
        font-size: 0.875rem;
        line-height: 1.2;
    }

    #footer .brand-title {
        font-size: 1.125rem;
    }

    #footer .footer-desc {
        font-size: 0.875rem;
        line-height: 1.5;
    }

    #footer .footer-link,
    #footer .cs-info {
        font-size: 0.8125rem;
    }

    #footer .footer-policies {
        gap: 0.5rem 1rem !important;
    }
}