/* =====================================================
   RESET
===================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    background: #071725;
    color: #ffffff;
    overflow-x: hidden;
}

img {
    width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}


/* =====================================================
   VARIABLES
===================================================== */

:root {

    --navy: #071725;
    --navy-light: #0c2133;

    --blue: #11b7ed;
    --blue-light: #45cdf5;

    --white: #ffffff;
    --muted: #a7b6c5;

    --border: rgba(255,255,255,0.10);

    --radius: 28px;

}


/* =====================================================
   CONTAINER
===================================================== */

.container {

    width: min(1400px, 90%);

    margin: auto;

}


/* =====================================================
   NAVBAR
===================================================== */

.navbar {

    position: fixed;

    top: 0;
    left: 0;

    width: 100%;

    z-index: 1000;

    padding: 22px 0;

    background:
        linear-gradient(
            180deg,
            rgba(6,24,39,0.85),
            rgba(6,24,39,0)
        );

    transition: 0.4s ease;

}


.navbar.scrolled {

    background: rgba(5,20,34,0.95);

    backdrop-filter: blur(15px);

    padding: 15px 0;

    box-shadow:
        0 10px 40px rgba(0,0,0,0.25);

}


.nav-container {

    width: min(1400px, 90%);

    margin: auto;

    display: flex;

    align-items: center;

    justify-content: space-between;

}


/* LOGO */

.logo {

    display: flex;

    align-items: center;

    gap: 12px;

}


.logo-circle {

    width: 48px;
    height: 48px;

    border-radius: 50%;

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

    color: var(--blue);

    border: 1px solid rgba(17,183,237,0.5);

    background:
        rgba(17,183,237,0.08);

    box-shadow:
        0 0 25px rgba(17,183,237,0.18);

    font-size: 23px;

}


.logo-text {

    font-size: 25px;

    font-weight: 800;

    letter-spacing: 1px;

}


.logo-text span {

    color: #dce5ec;

}


.logo-text strong {

    color: var(--blue);

}


/* NAV LINKS */

.nav-links {

    display: flex;

    gap: 50px;

}


.nav-links a {

    color: #d5dfe7;

    font-size: 16px;

    font-weight: 600;

    transition: 0.3s;

}


.nav-links a:hover {

    color: var(--blue);

}


/* QUOTE BUTTON */

.quote-btn {

    display: inline-flex;

    align-items: center;

    gap: 13px;

    padding: 15px 28px;

    border-radius: 50px;

    background:
        linear-gradient(
            135deg,
            #64c5eb,
            #388fbd
        );

    color: white;

    font-weight: 700;

    transition: 0.3s;

}


.quote-btn:hover {

    transform: translateY(-3px);

    box-shadow:
        0 12px 35px rgba(17,183,237,0.3);

}


.quote-btn span {

    font-size: 22px;

}


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

.hero {

    min-height: 850px;

    position: relative;

    display: flex;

    align-items: center;

    justify-content: center;

    text-align: center;

    overflow: hidden;

    background:

        radial-gradient(
            circle at 50% 25%,
            rgba(22,108,150,0.30),
            transparent 35%
        ),

        linear-gradient(
            135deg,
            #071a2b,
            #0a2438 50%,
            #071725
        );

}


/* Background glow */

.hero::before {

    content: "";

    position: absolute;

    width: 700px;
    height: 700px;

    border-radius: 50%;

    background:
        radial-gradient(
            circle,
            rgba(17,183,237,0.12),
            transparent 65%
        );

    top: 100px;

    left: 50%;

    transform: translateX(-50%);

}


.hero-overlay {

    position: absolute;

    inset: 0;

    background:

        linear-gradient(
            180deg,
            transparent 55%,
            #071725 100%
        );

}


.hero-content {

    position: relative;

    z-index: 2;

    width: min(900px, 90%);

    padding-top: 90px;

}


.small-title,
.eyebrow {

    color: var(--blue);

    font-size: 14px;

    font-weight: 800;

    letter-spacing: 7px;

}


.hero h1 {

    font-size: clamp(55px, 8vw, 105px);

    line-height: 0.98;

    margin: 25px 0;

    font-weight: 800;

    letter-spacing: -4px;

}


.hero h1 span,
.quality-section h2 span {

    display: block;

    background:
        linear-gradient(
            90deg,
            #dce8ef,
            #15b8ed
        );

    -webkit-background-clip: text;

    background-clip: text;

    color: transparent;

}


.hero p {

    width: min(650px, 100%);

    margin: 25px auto;

    color: var(--muted);

    font-size: 18px;

    line-height: 1.8;

}


/* Decoration */

.hero-line,
.heading-decoration {

    display: flex;

    justify-content: center;

    align-items: center;

    gap: 25px;

}


.hero-line span,
.heading-decoration span {

    width: 100px;

    height: 2px;

    background: var(--blue);

}


.hero-line b,
.heading-decoration i {

    color: var(--blue);

    font-size: 25px;

}


.hero-btn {

    display: inline-flex;

    margin-top: 25px;

    align-items: center;

    gap: 15px;

    padding: 16px 30px;

    border: 1px solid rgba(17,183,237,0.5);

    border-radius: 50px;

    color: white;

    transition: 0.3s;

}


.hero-btn:hover {

    background: var(--blue);

    color: #061725;

}


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

.section {

    padding: 120px 0 80px;

}


.section-heading {

    max-width: 850px;

    margin: auto;

    text-align: center;

}


.section-heading h2 {

    margin: 20px 0;

    font-size: clamp(45px, 6vw, 75px);

    line-height: 1;

}


.section-heading h2 span {

    color: var(--blue);

}


.section-heading p {

    margin: 30px auto 0;

    max-width: 700px;

    color: var(--muted);

    line-height: 1.8;

    font-size: 17px;

}


.heading-decoration {

    margin-top: 30px;

}


/* =====================================================
   PROCESS SECTION
===================================================== */

.process-section {

    padding: 80px 0 130px;

    position: relative;

}


.process-section.alternate {

    background:

        linear-gradient(
            180deg,
            rgba(255,255,255,0.02),
            rgba(255,255,255,0)
        );

}


.process-title {

    display: flex;

    align-items: center;

    gap: 25px;

    margin-bottom: 45px;

}


.step-number {

    color: var(--blue);

    font-size: 18px;

    font-weight: 800;

    letter-spacing: 2px;

}


.step-label {

    color: var(--blue);

    font-size: 12px;

    letter-spacing: 5px;

    font-weight: 700;

    margin-bottom: 8px;

}


.process-title h2 {

    font-family: "Oswald", sans-serif;

    font-size: clamp(35px, 4vw, 52px);

    font-weight: 500;

    color: white;

}


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

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

.image-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

/* Proper industrial image proportion */
.image-card {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;

    overflow: hidden;

    border-radius: 24px;

    background: #0b2133;

    border: 1px solid rgba(255,255,255,0.10);

    box-shadow:
        0 18px 45px rgba(0,0,0,0.25);

    cursor: pointer;

    transition:
        transform .45s ease,
        border-color .45s ease,
        box-shadow .45s ease;
}


/* IMAGE */

.image-card img {
    width: 100%;
    height: 100%;

    display: block;

    /*
       IMPORTANT:
       contain the complete machinery visually
    */
    object-fit: cover;

    object-position: center center;

    transform: scale(1);

    filter:
        brightness(.92)
        contrast(1.03)
        saturate(.92);

    transition:
        transform .7s cubic-bezier(.2,.8,.2,1),
        filter .5s ease;
}


/* DARK GRADIENT */

.image-card::before {
    content: "";

    position: absolute;
    inset: 0;

    z-index: 1;

    background:
        linear-gradient(
            to bottom,
            rgba(5,20,34,0.02) 35%,
            rgba(5,20,34,0.15) 55%,
            rgba(3,14,24,0.82) 100%
        );

    pointer-events: none;

    transition: opacity .5s ease;
}


/* CYAN LIGHT SWEEP */

.image-card::after {
    content: "";

    position: absolute;

    width: 160%;
    height: 160%;

    top: -40%;
    left: -140%;

    z-index: 2;

    background:
        linear-gradient(
            115deg,
            transparent 42%,
            rgba(17,183,237,.12) 48%,
            rgba(255,255,255,.18) 50%,
            rgba(17,183,237,.12) 52%,
            transparent 58%
        );

    transform: rotate(8deg);

    transition:
        left .8s cubic-bezier(.2,.8,.2,1);
}


/* =========================================
   HOVER
========================================= */

.image-card:hover {
    transform: translateY(-7px);

    border-color:
        rgba(17,183,237,.55);

    box-shadow:
        0 25px 65px rgba(0,0,0,.42),
        0 0 30px rgba(17,183,237,.10);
}


.image-card:hover img {
    transform: scale(1.045);

    filter:
        brightness(.75)
        contrast(1.06)
        saturate(1);
}


.image-card:hover::after {
    left: 105%;
}


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

.image-overlay {
    position: absolute;

    left: 36px;
    bottom: 28px;

    z-index: 5;

    transform: translateY(5px);

    transition: transform .4s ease;
}


.image-card:hover .image-overlay {
    transform: translateY(0);
}


.image-overlay span {
    color: #16b9ee;

    font-size: 13px;

    font-weight: 800;

    letter-spacing: 4px;
}
/* =========================================
   INDIVIDUAL IMAGE POSITION
========================================= */

.img-01 {
    object-position: center 48%;
}

.img-02 {
    object-position: center 45%;
}

.img-03 {
    object-position: center 52%;
}

.img-04 {
    object-position: center 50%;
}
/* =====================================================
   WELDING
===================================================== */

.welding-grid {

    grid-template-columns: repeat(2, 1fr);

}


.welding-grid .image-card {

    height: 500px;

}


/* =====================================================
   QUALITY SECTION
===================================================== */

.quality-section {

    position: relative;

    padding: 160px 0;

    overflow: hidden;

    background:

        radial-gradient(
            circle at 50% 50%,
            rgba(17,183,237,0.16),
            transparent 40%
        ),

        #081b2c;

}


.quality-bg {

    position: absolute;

    width: 800px;
    height: 800px;

    border-radius: 50%;

    left: 50%;
    top: 50%;

    transform: translate(-50%, -50%);

    border: 1px solid rgba(17,183,237,0.08);

}


.quality-content {

    position: relative;

    text-align: center;

    max-width: 900px;

}


.quality-content h2 {

    font-size: clamp(45px, 6vw, 75px);

    line-height: 1.05;

    margin: 20px 0;

}


.quality-content p {

    max-width: 700px;

    margin: 30px auto;

    color: var(--muted);

    font-size: 18px;

    line-height: 1.8;

}


.quote-btn.large {

    margin-top: 20px;

}


/* =====================================================
   FOOTER
===================================================== */

footer {

    padding-top: 80px;

    background: #04111d;

}


.footer-content {

    display: grid;

    grid-template-columns: 2fr 1fr 1fr;

    gap: 80px;

    padding-bottom: 70px;

}


.footer-brand p {

    max-width: 350px;

    margin-top: 20px;

    color: var(--muted);

    line-height: 1.8;

}


.footer-links,
.footer-contact {

    display: flex;

    flex-direction: column;

    gap: 15px;

}


.footer-links h3,
.footer-contact h3 {

    margin-bottom: 10px;

    color: var(--blue);

}


.footer-links a,
.footer-contact p {

    color: var(--muted);

    transition: 0.3s;

}


.footer-links a:hover {

    color: var(--blue);

}


.copyright {

    border-top: 1px solid var(--border);

    text-align: center;

    padding: 25px;

    color: #718292;

    font-size: 13px;

}


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

.reveal {

    opacity: 0;

    transform: translateY(45px);

    transition:
        opacity 0.8s ease,
        transform 0.8s ease;

}


.reveal.active {

    opacity: 1;

    transform: translateY(0);

}


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

@media (max-width: 900px) {

    .nav-links {

        display: none;

    }


    .quote-btn {

        padding: 12px 20px;

        font-size: 14px;

    }


    .hero {

        min-height: 750px;

    }


    .image-grid {

        grid-template-columns: 1fr;

    }


    .image-card,
    .welding-grid .image-card {

        height: 430px;

    }


    .footer-content {

        grid-template-columns: 1fr 1fr;

        gap: 50px;

    }


}


@media (max-width: 600px) {

    .navbar {

        padding: 15px 0;

    }


    .logo-text {

        font-size: 20px;

    }


    .logo-circle {

        width: 40px;
        height: 40px;

        font-size: 18px;

    }


    .navbar .quote-btn {

        display: none;

    }


    .hero {

        min-height: 680px;

    }


    .hero h1 {

        font-size: 52px;

        letter-spacing: -2px;

    }


    .hero p {

        font-size: 15px;

    }


    .section {

        padding: 80px 0 50px;

    }


    .process-section {

        padding: 55px 0 80px;

    }


    .process-title {

        gap: 15px;

    }


    .process-title h2 {

        font-size: 35px;

    }


    .image-card,
    .welding-grid .image-card {

        height: 300px;

        border-radius: 20px;

    }


    .image-grid {

        gap: 20px;

    }


    .footer-content {

        grid-template-columns: 1fr;

    }


    .quality-section {

        padding: 100px 0;

    }


}