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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: #ffffff;
    color: #0a2540;
    overflow-x: hidden;
    line-height: 1.6;
}

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

a {
    text-decoration: none;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px;
}

/* =========================
HEADER & LOGO AREA
========================= */
.header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(6, 70, 223, .06);
}

.navbar {
    height: 90px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 38px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    font-size: 26px;
    font-weight: 800;
    color: #0646df;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 15px;
    font-weight: 600;
    color: #1f3a5f;
    transition: color .3s ease;
}

.nav-links a:hover {
    color: #0646df;
}

/* =========================
BUTTONS
========================= */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 52px;
    padding: 0 28px;
    background: #0646df;
    color: #fff;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    transition: all .3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(6, 70, 223, 0.25);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 52px;
    padding: 0 28px;
    background: #fff;
    border: 1px solid #d9e2f3;
    color: #0646df;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    transition: all .3s ease;
}

.btn-secondary:hover {
    background: #f4f7fe;
    transform: translateY(-2px);
}

/* =========================
HOME HERO
========================= */
.hero {
    position: relative;
    padding: 15px 0 90px;
    background: radial-gradient(circle at 85% 30%, rgba(6, 70, 223, 0.05) 0%, rgba(255, 255, 255, 0) 60%), #ffffff;
    overflow: hidden;
}

.hero-glow {
    position: absolute;
    right: -100px;
    top: -50px;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 70, 223, .06), transparent 70%);
    filter: blur(60px);
    z-index: 0;
}

.hero-wrapper {
    display: grid;
    grid-template-columns: 36% 64%; 
    gap: 40px;
    align-items: flex-start;
    position: relative;
    z-index: 2;
}

/* =========================
LEFT CONTENT
========================= */
.main-title {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 12px;
    color: #071c46;
}

.main-title .nobrk {
    white-space: nowrap;
    color: #0646df;
}

.description {
    font-size: 14px;
    line-height: 1.5;
    color: #42526b;
    margin-bottom: 16px;
}

.divider {
    width: 60px;
    height: 3px;
    background: #0646df;
    border-radius: 20px;
    margin-bottom: 24px;
}

.hero-icons {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.icon-item {
    text-align: center;
}

.icon-item img {
    width: 32px;
    height: 32px;
    margin: 0 auto 6px;
}

.icon-item span {
    display: block;
    font-size: 10px;
    line-height: 1.3;
    color: #4a5568;
}

.zen-family h3 {
    font-size: 20px;
    font-weight: 700;
    color: #071c46;
    margin-bottom: 4px;
}

.zen-family p {
    font-size: 13px;
    line-height: 1.5;
    color: #5b6678;
    margin-bottom: 20px;
}

.btn-group {
    display: flex;
    gap: 12px;
}

/* =========================
RIGHT PRODUCT AREA
========================= */
.hero-right {
    position: relative;
    width: 100%;
    margin-top: -110px;
}

.product-showcase-container {
    display: flex;
    justify-content: center;
    align-items: flex-end; 
    width: 100%;
    padding-left: 20px;
}

.product-column {
    display: flex;
    flex-direction: column;
    align-items: center;    
    justify-content: flex-end;
    position: relative;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.product-img-box {
    display: flex;
    align-items: flex-end;  
    justify-content: center;
    height: 460px;          
    margin-bottom: 28px;    
    position: relative;
}

.product-img-box img {
    height: auto !important;
    object-fit: contain;
    filter: drop-shadow(0 20px 35px rgba(0, 0, 0, .12));
}

.product-column.fx img {
    width: 320px !important;      
    transform: translateX(-24px); 
}

.product-column.light img {
    width: 215px !important;
}

.product-column.diode img {
    width: 235px !important;
}

.product-column.fx {
    z-index: 3;
    margin-right: -55px; 
}

.product-column.light {
    z-index: 2;
    margin-right: -15px; 
}

.product-column.diode {
    z-index: 1;
}

.product-label-item {
    text-align: center;
    width: 100%;
    max-width: 230px; 
}

.product-label-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: #0646df;
    margin-bottom: 6px;
}

.product-label-item p {
    font-size: 12px;
    line-height: 1.4;
    color: #5b6678;
}

.product-column:hover {
    transform: translateY(-8px) !important;
    z-index: 10;
}

/* =========================
WHY SECTION
========================= */
.why-section {
    padding: 100px 0;
    background: #ffffff;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.why-card {
    padding: 32px;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(0, 0, 0, .04);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.why-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(6, 70, 223, 0.08);
}

.why-number {
    font-size: 40px;
    font-weight: 800;
    color: #dbe5ff;
    margin-bottom: 12px;
}

.why-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #0646df;
}

.why-card p {
    font-size: 14px;
    line-height: 1.7;
    color: #556274;
}

/* =========================
FEATURED PRODUCTS
========================= */
.featured-products {
    padding: 100px 0;
    background: #f8fbff;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.featured-card {
    background: #ffffff;
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 12px 30px rgba(0, 0, 0, .04);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.featured-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(6, 70, 223, 0.1);
}

.featured-card img {
    height: 300px;
    width: auto;
    margin: 0 auto 20px;
    object-fit: contain;
}

.featured-card h3 {
    font-size: 24px;
    font-weight: 700;
    color: #0646df;
    margin-bottom: 10px;
}

.featured-card p {
    font-size: 15px;
    line-height: 1.7;
    color: #556274;
    margin-bottom: 16px;
}

.featured-card a {
    font-size: 14px;
    font-weight: 700;
    color: #0646df;
    display: inline-block;
    transition: transform 0.3s ease;
}

.featured-card a:hover {
    transform: translateX(4px);
}

/* =========================
SOLUTIONS
========================= */
.solutions-home {
    padding: 100px 0;
    background: #ffffff;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.solution-card {
    background: #ffffff;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, .04);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.solution-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(6, 70, 223, 0.08);
}

.solution-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #eef4ff;
    color: #0646df;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.solution-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #0646df;
}

.solution-card p {
    font-size: 14px;
    line-height: 1.7;
    color: #556274;
}

/* =========================
SECTION HEADER
========================= */
.section-header {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 70px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 800;
    color: #071c46;
    margin-bottom: 18px;
}

.section-header p {
    font-size: 18px;
    line-height: 1.8;
    color: #5b6678;
}

/* =========================
CLINICAL SUPPORT
========================= */
.support-home {
    padding: 100px 0;
    background: #f8fbff;
}

.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.support-content h2 {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #071c46;
}

.support-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #556274;
    margin-bottom: 20px;
}

.support-content ul {
    padding-left: 20px;
    margin-bottom: 30px;
}

.support-content li {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 8px;
    color: #556274;
}

.support-image img {
    width: 100%;
    border-radius: 16px;
    object-fit: cover;
    box-shadow: 0 15px 35px rgba(0, 0, 0, .06);
}

/* =========================
CTA SECTION
========================= */
.cta-section {
    padding: 100px 0;
    background: #ffffff;
    text-align: center;
}

.cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 44px;
    font-weight: 800;
    margin-bottom: 16px;
    color: #071c46;
}

.cta-content p {
    font-size: 18px;
    line-height: 1.7;
    color: #5b6678;
    margin-bottom: 30px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* =========================
FOOTER
========================= */
.footer {
    background: #071c46;
    padding: 80px 0 30px;
    color: #ffffff;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.footer-column h4 {
    font-size: 16px;
    margin-bottom: 16px;
}

.footer-column p {
    color: #c9d5ee;
    font-size: 14px;
    line-height: 1.7;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 10px;
}

.footer-column a {
    color: #d8e4ff;
    font-size: 14px;
    transition: color .3s ease;
}

.footer-column a:hover {
    color: #ffffff;
}

.footer-bottom {
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, .1);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: #b7c6e4;
}

/* =========================
RESPONSIVE (MEDIA QUERIES)
========================= */
@media(max-width: 1200px) {
    .hero-wrapper {
        grid-template-columns: 1fr;
        gap: 50px;
        align-items: center;
    }
    .hero-left { text-align: center; }
    .divider { margin-left: auto; margin-right: auto; }
    .hero-icons { max-width: 550px; margin-left: auto; margin-right: auto; }
    .btn-group { justify-content: center; }

    .product-showcase-container { padding-left: 0; }
    .product-img-box { height: 360px; }
    .product-column.fx img { width: 250px !important; transform: translateX(-18px); }
    .product-column.light img { width: 170px !important; }
    .product-column.diode img { width: 185px !important; }

    .why-grid, .featured-grid, .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .support-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media(max-width: 768px) {
    .container { padding: 0 24px; }
    .nav-links { display: none; }
    .main-title { font-size: 32px; }
    .hero-icons { grid-template-columns: repeat(3, 1fr); }

    .product-showcase-container {
        flex-direction: column;
        align-items: center;
        gap: 40px;
    }
    .product-column { margin-right: 0 !important; }
    .product-img-box { height: auto; margin-bottom: 12px; }
    .product-column img {
        height: 280px !important;
        width: auto !important;
        transform: none !important;
    }
    .product-label-item { max-width: 100%; }
    .why-grid, .featured-grid, .solutions-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
}
/* ==========================================================================
   PRODUCT DETAIL PAGE DESIGN (ZenLight iQ)
   ========================================================================== */

/* --- 1. Product Hero Section --- */
.p-hero {
    padding: 80px 0 60px;
    background: radial-gradient(120% 120% at 100% 0%, #f4f8ff 0%, #ffffff 100%);
    border-bottom: 1px solid rgba(6, 70, 223, 0.05);
}

.p-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.p-hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.p-hero-image .img-wrapper {
    position: relative;
    padding: 30px;
    background: #ffffff;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(7, 28, 70, 0.05);
}

.p-hero-image img {
    max-width: 100%;
    height: auto;
    max-height: 440px;
    filter: drop-shadow(0 15px 30px rgba(0, 0, 0, 0.08));
    transition: transform 0.5s ease;
}

.p-hero-image:hover img {
    transform: scale(1.02) translateY(-4px);
}

.p-hero-content {
    max-width: 540px;
}

.p-tag {
    display: inline-block;
    font-size: 13px;
    color: #0646df;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
    background: rgba(6, 70, 223, 0.06);
    padding: 6px 14px;
    border-radius: 50px;
}

.p-title {
    font-size: 46px;
    font-weight: 800;
    color: #071c46;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.p-desc {
    font-size: 15px;
    color: #42526b;
    line-height: 1.7;
    margin-bottom: 32px;
}

/* --- 2. Features Section --- */
.p-features {
    padding: 100px 0;
    background: #ffffff;
}

.p-section-header {
    text-align: center;
    margin-bottom: 60px;
}

.p-section-header h2 {
    font-size: 32px;
    font-weight: 800;
    color: #071c46;
    margin-bottom: 16px;
}

.p-indicator-bar {
    width: 50px;
    height: 4px;
    background: #0646df;
    margin: 0 auto;
    border-radius: 2px;
}

.p-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.p-feature-card {
    background: #ffffff;
    padding: 40px;
    border-radius: 16px;
    border: 1px solid #eef3fb;
    box-shadow: 0 4px 20px rgba(7, 28, 70, 0.01);
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.p-feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(6, 70, 223, 0.15);
    box-shadow: 0 15px 35px rgba(6, 70, 223, 0.05);
}

.card-icon {
    font-size: 28px;
    margin-bottom: 20px;
}

.p-feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: #071c46;
    margin-bottom: 12px;
}

.p-feature-card p {
    font-size: 14px;
    color: #5b6678;
    line-height: 1.65;
}

/* --- 3. Applications & Optimization Section --- */
.p-apps {
    padding: 90px 0;
    background: #f8fbff;
    border-top: 1px solid rgba(6, 70, 223, 0.04);
}

.p-apps-grid {
    display: grid;
    grid-template-columns: 52% 48%;
    gap: 60px;
    align-items: center;
}

.p-apps-left h2 {
    font-size: 32px;
    font-weight: 800;
    color: #071c46;
    margin-bottom: 16px;
}

.p-apps-left p {
    font-size: 15px;
    color: #5b6678;
    margin-bottom: 24px;
}

.p-indicator-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 0;
}

.p-indicator-list li {
    font-size: 14px;
    color: #1f3a5f;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.p-indicator-list li span {
    color: #0646df;
    font-weight: 700;
}

.optimization-card {
    background: #ffffff;
    padding: 45px;
    border-radius: 20px;
    border: 1px solid #eef3fb;
    box-shadow: 0 15px 40px rgba(7, 28, 70, 0.03);
}

.optimization-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: #071c46;
    margin-bottom: 14px;
}

.optimization-card p {
    font-size: 14px;
    color: #5b6678;
    line-height: 1.7;
    margin-bottom: 30px;
}

.support-badge {
    background: #f4f8ff;
    padding: 20px;
    border-radius: 12px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    border-left: 4px solid #0646df;
}

.support-badge .shield-icon {
    font-size: 22px;
    margin-top: -2px;
}

.support-badge p {
    font-size: 13px;
    color: #0646df;
    font-weight: 600;
    line-height: 1.5;
    margin: 0;
}

/* --- 4. Responsive Adjustment for Details Page --- */
@media(max-width: 992px) {
    .p-hero-grid, .p-apps-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .p-hero-content, .p-apps-left {
        text-align: center;
        max-width: 100%;
    }
    .p-indicator-list {
        max-width: 500px;
        margin: 0 auto;
    }
    .p-features-grid {
        grid-template-columns: 1fr;
    }
}