/* =========================================
   GLOBAL
========================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f7fb;
    color: #1e293b;
    overflow-x: hidden;
    line-height: 1.8;
}


/* =========================================
   HERO SECTION
========================================= */

.flammability-hero {
    position: relative;

    min-height: 100vh;

    padding: 120px 8%;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 60px;

    overflow: hidden;

    background:
        linear-gradient(135deg,
            #081120,
            #0f172a 55%,
            #111827);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.glow1 {
    width: 450px;
    height: 450px;

    background: rgba(59, 130, 246, 0.12);

    top: -100px;
    left: -100px;
}

.glow2 {
    width: 420px;
    height: 420px;

    background: rgba(59, 130, 246, 0.12);

    bottom: -120px;
    right: -100px;
}

.hero-left {
    position: relative;
    z-index: 2;
    flex: 1;
}

.hero-left h1 {
    font-size: 78px;
    line-height: 1.02;

    margin-bottom: 32px;

    max-width: 760px;

    color: white;

    font-weight: 800;

    letter-spacing: -2px;
}

.hero-left p {
    color: #cbd5e1;

    font-size: 20px;

    max-width: 650px;

    margin-bottom: 42px;
}

.hero-buttons {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.primary-btn,
.secondary-btn {
    text-decoration: none;

    padding: 16px 32px;

    border-radius: 18px;

    font-weight: 700;

    transition: 0.35s ease;
}

.primary-btn {
    background:
        linear-gradient(135deg,
            #2563eb,
            #3b82f6);

    color: white;

    box-shadow: 0 12px 35px rgba(37, 99, 235, 0.25);
}

.primary-btn:hover {
    transform: translateY(-5px);
}

.secondary-btn {
    border: 1px solid rgba(255, 255, 255, 0.12);

    background: rgba(255, 255, 255, 0.05);

    color: white;

    backdrop-filter: blur(12px);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}


/* =========================================
   FLOATING IMAGES
========================================= */

.hero-right {
    position: relative;
    flex: 1;
    height: 720px;
}

.floating-img {
    position: absolute;

    border-radius: 28px;

    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);

    animation: float 6s ease-in-out infinite;

    object-fit: cover;
}

.img1 {
    width: 340px;

    top: 40px;
    right: 120px;

    z-index: 3;
}

.img2 {
    width: 300px;

    bottom: 70px;
    left: 20px;

    z-index: 2;

    animation-delay: 1.5s;
}

.img3 {
    width: 260px;

    top: 280px;
    right: 0;

    z-index: 1;

    animation-delay: 3s;
}

@keyframes float {

    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-18px);
    }

    100% {
        transform: translateY(0px);
    }

}


/* =========================================
   INTRO SECTION
========================================= */

.intro-section {
    display: flex;
    align-items: center;

    gap: 80px;

    padding: 130px 8%;
}

.intro-image {
    flex: 1;
}

.intro-image img {
    width: 100%;

    border-radius: 36px;

    object-fit: contain;

    box-shadow: 0 25px 60px rgba(15, 23, 42, 0.12);
}

.intro-content {
    flex: 1;
}

.intro-content h2 {
    font-size: 58px;
    line-height: 1.08;

    margin-bottom: 0;

    color: #0f172a;
}

.intro-content p {
    color: #64748b;

    margin-bottom: 24px;

    font-size: 17px;
}


/* =========================================
   ACCENT LINE
========================================= */

.accent-line {
    width: 90px;
    height: 5px;

    border-radius: 999px;

    margin: 24px 0 34px;

    background:
        linear-gradient(to right,
            #2563eb,
            #60a5fa);
}

.center-line {
    margin-left: auto;
    margin-right: auto;
}


/* =========================================
   DARK BANNER
========================================= */

.dark-banner {
    position: relative;

    margin: 0 8% 140px;

    padding: 110px 60px;

    border-radius: 42px;

    overflow: hidden;

    text-align: center;

    background:
        linear-gradient(135deg,
            #0f172a,
            #1e293b);
}

.dark-overlay {
    position: absolute;
    inset: 0;

    background:
        radial-gradient(circle at top left,
            rgba(59, 130, 246, 0.10),
            transparent 35%),

        radial-gradient(circle at bottom right,
            rgba(59, 130, 246, 0.08),
            transparent 35%);
}

.dark-content {
    position: relative;
    z-index: 2;
}

.dark-content h2 {
    font-size: 62px;

    line-height: 1.08;

    max-width: 950px;

    margin: auto;

    color: white;
}

.dark-content p {
    color: #cbd5e1;

    max-width: 820px;

    margin: auto;

    font-size: 18px;
}


/* =========================================
   TESTING SECTION
========================================= */

.testing-section {
    padding: 0 8% 140px;
}

.section-heading {
    text-align: center;

    margin-bottom: 80px;
}

.section-heading h2 {
    font-size: 68px;
    line-height: 1.05;

    margin-bottom: 24px;

    color: #0f172a;
}

.section-heading p {
    color: #64748b;

    max-width: 760px;

    margin: auto;

    font-size: 18px;
}


/* =========================================
   TESTING FEATURES
========================================= */

.testing-feature {
    display: flex;

    gap: 50px;

    margin-bottom: 45px;

    padding: 55px;

    border-radius: 36px;

    overflow: hidden;

    position: relative;

    background: white;

    border: 1px solid #e2e8f0;

    transition: 0.35s ease;

    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);
}

.testing-feature:hover {
    transform: translateY(-8px);

    border-color: #93c5fd;
}

.testing-feature::before {
    content: '';

    position: absolute;

    width: 260px;
    height: 260px;

    border-radius: 50%;

    background: rgba(59, 130, 246, 0.05);

    filter: blur(80px);

    top: -100px;
    right: -80px;
}

.feature-number {
    font-size: 95px;

    font-weight: 800;

    line-height: 1;

    min-width: 130px;

    color: #3b82f6;
}

.feature-content {
    position: relative;
    z-index: 2;

    flex: 1;
}

.feature-content h3 {
    font-size: 44px;

    line-height: 1.08;

    color: #0f172a;
}

.feature-content p {
    color: #475569;

    font-size: 17px;

    line-height: 1.9;
}

.feature-tags {
    display: flex;

    flex-wrap: wrap;

    gap: 14px;

    margin-top: 35px;
}

.feature-tags div {
    padding: 10px 18px;

    border-radius: 999px;

    background: #eff6ff;

    border: 1px solid #bfdbfe;

    color: #2563eb;

    font-size: 14px;

    font-weight: 600;
}


/* =========================================
   EQUIPMENT SECTION
========================================= */

.equipment-showcase {
    padding: 0 8% 140px;
}


/* =========================================
   FEATURED EQUIPMENT
========================================= */

.featured-equipment {
    display: flex;
    align-items: center;

    gap: 70px;

    margin-bottom: 90px;

    padding: 55px;

    border-radius: 40px;

    background: white;

    border: 1px solid #e2e8f0;

    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.05);

    transition: 0.35s ease;
}

.featured-equipment:hover {
    transform: translateY(-8px);
}

.equipment-text {
    flex: 1;
}

.equipment-text h3 {
    font-size: 52px;

    line-height: 1.08;

    color: #0f172a;
}

.equipment-text p {
    color: #64748b;

    font-size: 17px;
}

.equipment-image {
    flex: 1;
}

.equipment-image img {
    width: 100%;

    object-fit: contain;

    border-radius: 30px;
}


/* =========================================
   EQUIPMENT GRID
========================================= */

.equipment-grid {
    display: grid;

    grid-template-columns:
        repeat(auto-fit, minmax(300px, 1fr));

    gap: 26px;

    margin-top: 40px;
}


/* =========================================
   EQUIPMENT CARD
========================================= */

.equipment-card {
    position: relative;

    background: white;

    border-radius: 24px;

    overflow: hidden;

    border: 1px solid #e5e7eb;

    transition: 0.35s ease;

    min-height: 420px;
}

.equipment-card:hover {
    transform: translateY(-6px);

    box-shadow:
        0 18px 40px rgba(15, 23, 42, 0.08);
}


/* =========================================
   IMAGE
========================================= */

.equipment-card img {
    width: 100%;

    height: 320px;

    object-fit: contain;

    display: block;

    padding: 28px;

    background: white;
}


/* =========================================
   CONTENT
========================================= */

.equipment-overlay {
    position: relative;

    padding: 0 28px 30px;

    background: white;
}


/* =========================================
   TEXT
========================================= */

.equipment-overlay h3 {
    color: #0f172a;

    font-size: 28px;

    line-height: 1.1;

    font-weight: 700;

    margin-bottom: 8px;
}

.equipment-overlay p {
    color: #2563eb;

    font-size: 15px;

    font-weight: 600;
}


/* =========================================
   FEATURED CARD
========================================= */

.featured-card {
    grid-column: span 2;

    display: grid;

    grid-template-columns: 1.1fr 1fr;

    align-items: center;

    min-height: 500px;
}

.featured-card img {
    height: 100%;

    max-height: 500px;

    padding: 40px;
}

.featured-card .equipment-overlay {
    padding: 40px;
}

.featured-card .equipment-overlay h3 {
    font-size: 52px;

    max-width: 500px;
}

.featured-card .equipment-overlay p {
    font-size: 20px;
}


/* =========================================
   RESPONSIVE
========================================= */

@media(max-width:1100px) {

    .featured-card {
        grid-column: auto;

        grid-template-columns: 1fr;
    }

    .featured-card img {
        max-height: 420px;
    }

}

@media(max-width:768px) {

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

    .equipment-card img {
        height: 260px;
    }

    .equipment-overlay h3 {
        font-size: 22px;
    }

    .featured-card .equipment-overlay h3 {
        font-size: 34px;
    }

}
/* =========================================
   FINAL SECTION
========================================= */

.final-section {
    position: relative;

    margin: 0 8% 120px;

    padding: 120px 60px;

    border-radius: 42px;

    overflow: hidden;

    text-align: center;

    background:
        linear-gradient(135deg,
            #1e3a8a,
            #2563eb);
}

.final-glow {
    position: absolute;

    width: 500px;
    height: 500px;

    background: rgba(255, 255, 255, 0.10);

    border-radius: 50%;

    filter: blur(120px);

    top: -180px;
    right: -120px;
}

.final-content {
    position: relative;
    z-index: 2;
}

.final-content h2 {
    font-size: 64px;

    line-height: 1.05;

    margin-bottom: 0;

    color: white;
}

.final-content p {
    max-width: 850px;

    margin: auto;

    font-size: 20px;

    color: #eff6ff;
}

.services-overview {
    display: flex;

    gap: 70px;

    align-items: flex-start;

    padding: 0 8% 140px;
}

.overview-left {
    flex: 1;
}

.overview-left h2 {
    font-size: 58px;

    line-height: 1.08;

    color: #0f172a;

    margin-bottom: 0;
}

.overview-left p {
    color: #64748b;

    font-size: 17px;

    margin-bottom: 24px;
}

.overview-right {
    flex: 1;

    display: flex;

    flex-wrap: wrap;

    gap: 18px;
}

.service-pill {
    padding: 18px 24px;

    border-radius: 20px;

    background: white;

    border: 1px solid #dbeafe;

    color: #1e3a8a;

    font-weight: 600;

    font-size: 15px;

    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);

    transition: 0.3s ease;
}

.service-pill:hover {
    transform: translateY(-5px);

    border-color: #60a5fa;

    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.12);
}

@media(max-width:1100px) {

    .services-overview {
        flex-direction: column;
    }

}

@media(max-width:768px) {

    .overview-left h2 {
        font-size: 42px;
    }

}

/* =========================================
   ANIMATION
========================================= */

.hidden {
    opacity: 0;
    transform: translateY(50px);

    transition: all 0.9s ease;
}

.show {
    opacity: 1;
    transform: translateY(0);
}


/* =========================================
   RESPONSIVE
========================================= */

@media(max-width:1100px) {

    .flammability-hero,
    .intro-section,
    .featured-equipment,
    .testing-feature {
        flex-direction: column;
    }

    .hero-right {
        height: 520px;
        width: 100%;
    }

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

    .large,
    .wide,
    .tall {
        grid-column: auto;
        grid-row: auto;
    }

}

@media(max-width:768px) {

    .hero-left h1 {
        font-size: 48px;
    }

    .intro-content h2,
    .dark-content h2,
    .section-heading h2,
    .final-content h2 {
        font-size: 42px;
    }

    .feature-content h3,
    .equipment-text h3 {
        font-size: 34px;
    }

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

    .testing-feature,
    .featured-equipment,
    .dark-banner,
    .final-section {
        padding: 40px 30px;
    }

}

@media(max-width:500px) {

    .hero-left h1 {
        font-size: 38px;
    }

    .intro-content h2,
    .dark-content h2,
    .section-heading h2,
    .final-content h2 {
        font-size: 34px;
    }

    .feature-content h3,
    .equipment-text h3 {
        font-size: 28px;
    }

    .feature-number {
        font-size: 70px;
    }

}