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

:root {
    --dark: #101820;
    --dark-2: #18232d;
    --orange: #f59e0b;
    --text: #303943;
    --muted: #6b7280;
    --light: #f4f6f8;
    --white: #ffffff;
}

body {
    font-family: Tahoma, Arial, sans-serif;
    color: var(--text);
    background: #fff;
    line-height: 1.9;
}

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

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

.container {
    width: min(1180px, 90%);
    margin: auto;
}


/* HEADER */

.main-header {
    background: var(--dark);
    color: white;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,.08);
}

.navbar {
    height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.brand-icon {
    background: var(--orange);
    color: var(--dark);
    font-weight: 900;
    padding: 7px 10px;
}

.brand strong {
    display: block;
}

.brand span {
    display: block;
    font-size: 11px;
    color: #aab3bb;
}

nav {
    display: flex;
    align-items: center;
    gap: 25px;
}

nav a {
    font-size: 14px;
    transition: .2s;
}

nav a:hover {
    color: var(--orange);
}

.contact-button {
    background: var(--orange);
    color: #111 !important;
    padding: 9px 18px;
    font-weight: bold;
}

.menu-button {
    display: none;
}


/* HERO */

.hero {
    position: relative;

    width: 100%;
    aspect-ratio: 16 / 9;

    min-height: 600px;
    max-height: 850px;

    display: flex;
    align-items: center;

    color: white;
    overflow: hidden;
    background: var(--dark);
}

.hero-video {
    position: absolute;
    inset: 0;

    width: 100%;
    height: 100%;

    object-fit: cover;
    object-position: center;

    z-index: 0;
}

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

    background: linear-gradient(
        90deg,
        rgba(9, 15, 20, 0.95),
        rgba(9, 15, 20, 0.65),
        rgba(9, 15, 20, 0.35)
    );

    z-index: 1;
}

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


.hero-badge,
.section-label {
    color: var(--orange);
    letter-spacing: 2px;
    font-size: 12px;
    font-weight: bold;
}

.hero h1 {
    max-width: 750px;
    font-size: clamp(40px, 6vw, 76px);
    line-height: 1.25;
    margin: 20px 0;
}

.hero h1 span {
    color: var(--orange);
    display: block;
}

.hero p {
    max-width: 670px;
    color: #d2d7db;
    font-size: 17px;
}

.hero-actions {
    display: flex;
    gap: 15px;
    margin-top: 35px;
}

.btn {
    display: inline-block;
    padding: 12px 27px;
    font-weight: bold;
    transition: .2s;
}

.btn-primary {
    background: var(--orange);
    color: #111;
}

.btn-outline {
    border: 1px solid #89939c;
    color: white;
}

.btn-dark {
    background: var(--dark);
    color: white;
}

.btn-light {
    background: white;
    color: var(--dark);
}


/* STATS */

.stats {
    background: var(--dark-2);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stats-grid div {
    padding: 28px;
    border-left: 1px solid rgba(255,255,255,.08);
}

.stats strong {
    display: block;
    color: var(--orange);
    font-size: 22px;
}

.stats span {
    font-size: 13px;
    color: #b7c0c8;
}


/* SECTIONS */

.section {
    padding: 95px 0;
}

.section-heading {
    margin-bottom: 45px;
    max-width: 700px;
}

.section-heading > span,
.page-header span {
    color: var(--orange);
    font-size: 12px;
    font-weight: bold;
    letter-spacing: 2px;
}

.section-heading h2,
.about-preview h2 {
    font-size: 34px;
    color: var(--dark);
    margin: 7px 0;
}

.section-heading p {
    color: var(--muted);
}


/* CARDS */

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.card {
    background: white;
    border: 1px solid #e6e9ec;
    transition: .25s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,.08);
}

.card img {
    height: 230px;
    object-fit: cover;
}

.card-body {
    padding: 25px;
}

.card-body h3 {
    color: var(--dark);
    margin: 7px 0;
}

.card-body p {
    color: var(--muted);
}

.service-code {
    color: var(--orange);
    font-weight: 900;
    font-size: 13px;
}

.card-link {
    display: block;
    height: 100%;
}

.service-card {
    cursor: pointer;
}

.service-card .text-link {
    transition: .2s;
}

.service-card:hover .text-link {
    color: var(--dark);
}

/* ABOUT */

.about-preview {
    padding: 100px 0;
    background: var(--light);
}

.about-grid {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 80px;
    align-items: center;
}

.about-grid p {
    color: var(--muted);
    margin: 15px 0;
}

.text-link {
    display: inline-block;
    color: #d88100;
    font-weight: bold;
    margin-top: 15px;
}

.industrial-box {
    background: var(--dark);
    padding: 30px;
}

.industrial-box div {
    padding: 25px 10px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.industrial-box strong {
    display: block;
    color: var(--orange);
    font-size: 30px;
}

.industrial-box span {
    color: #c0c7cd;
}


/* PAGE HEADER */

.page-header {
    padding: 100px 0;
    background: var(--dark);
    color: white;
}

.page-header h1 {
    font-size: 45px;
    margin-top: 10px;
}


/* CTA */

.cta {
    background: var(--orange);
    padding: 55px 0;
}

.cta-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.cta h2 {
    max-width: 750px;
    color: var(--dark);
}


/* CONTENT */

.content-page {
    max-width: 900px;
}

.content-page h2,
.content-page h3 {
    color: var(--dark);
    margin: 25px 0 10px;
}

.content-page p {
    margin-bottom: 15px;
    color: var(--muted);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.contact-card {
    padding: 40px;
    background: var(--light);
    border-top: 4px solid var(--orange);
}

.contact-card span {
    color: var(--orange);
    font-size: 13px;
}

.contact-card h3 {
    margin: 10px 0;
}


/* FOOTER */

.footer {
    background: #0c1319;
    color: #aeb7be;
    padding-top: 70px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 60px;
}

.footer h3,
.footer h4 {
    color: white;
    margin-bottom: 15px;
}

.footer a {
    display: block;
    margin: 7px 0;
}

.copyright {
    text-align: center;
    padding: 25px;
    margin-top: 60px;
    border-top: 1px solid #27313a;
    font-size: 12px;
}

.center {
    text-align: center;
    margin-top: 45px;
}

.empty-message {
    color: var(--muted);
}

/* DETAILS */

.detail-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(280px, .8fr);
    gap: 60px;
    align-items: start;
}

.detail-image {
    height: 480px;
    object-fit: cover;
    margin-bottom: 40px;
}

.detail-content h2 {
    margin: 12px 0 20px;
    font-size: 32px;
    color: var(--dark);
}

.description {
    color: var(--muted);
    line-height: 2.2;
}

.detail-sidebar {
    background: var(--dark);
    color: white;
    padding: 35px;
    position: sticky;
    top: 110px;
}

.detail-sidebar > span {
    color: var(--orange);
    font-size: 12px;
}

.detail-sidebar h3 {
    font-size: 23px;
    margin: 5px 0 25px;
}

.info-row {
    padding: 18px 0;
    border-top: 1px solid rgba(255,255,255,.12);
}

.info-row small {
    display: block;
    color: #919da7;
}

.info-row strong {
    display: block;
    margin-top: 5px;
}

.full-button {
    width: 100%;
    text-align: center;
    margin-top: 25px;
}

.related-section {
    background: var(--light);
}

.project-services {
    margin-top: 25px;
}

.project-services small {
    display: block;
    color: #919da7;
    margin-bottom: 12px;
}

.tag {
    display: inline-block;
    border: 1px solid #47535e;
    padding: 5px 12px;
    margin: 3px;
    font-size: 12px;
}

.tag:hover {
    background: var(--orange);
    border-color: var(--orange);
    color: #111;
}


/* CONTACT FORM */

.contact-page-grid {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: 70px;
}

.contact-information h2,
.contact-form-box h2 {
    color: var(--dark);
    font-size: 30px;
    margin: 5px 0 30px;
}

.contact-item {
    padding: 20px 0;
    border-bottom: 1px solid #e4e7ea;
}

.contact-item small {
    display: block;
    color: var(--orange);
}

.contact-item strong {
    display: block;
    color: var(--dark);
    margin-top: 4px;
}

.contact-form-box {
    background: var(--light);
    padding: 40px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-field {
    margin-top: 20px;
}

.contact-form-box label {
    display: block;
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 7px;
}

.contact-form-box input,
.contact-form-box textarea {
    width: 100%;
    border: 1px solid #d7dce0;
    background: white;
    padding: 13px 15px;
    font-family: inherit;
    outline: none;
}

.contact-form-box input:focus,
.contact-form-box textarea:focus {
    border-color: var(--orange);
}

.contact-form-box textarea {
    resize: vertical;
}

.contact-form-box button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    margin-top: 25px;
}

.success-message {
    background: #e9f7ed;
    border-right: 4px solid #268a44;
    padding: 15px;
    margin-bottom: 25px;
}

.form-errors {
    color: #a82323;
    margin-top: 15px;
}

.project-card {
    cursor: pointer;
}

.project-card .text-link {
    transition: .2s;
}

.project-card:hover .text-link {
    color: var(--dark);
}

/* ================================
   SERVICES DROPDOWN
================================ */

.nav-dropdown {
    position: relative;
}

.nav-dropdown-header {
    display: flex;
    align-items: center;
    gap: 5px;
}

.dropdown-toggle {
    background: transparent;
    border: 0;
    color: var(--orange);
    cursor: pointer;
    font-size: 13px;
    padding: 5px;
    font-family: inherit;
}

/* Dropdown is hidden by default */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 18px);
    right: 0;

    width: 340px;

    background: #121c24;
    border-top: 3px solid var(--orange);

    box-shadow: 0 15px 40px rgba(0, 0, 0, .30);

    padding: 8px 0;

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transform: translateY(10px);

    transition:
        opacity .2s ease,
        transform .2s ease,
        visibility .2s ease;

    z-index: 2000;
}


/* Invisible bridge between menu and dropdown */

.dropdown-menu::before {
    content: "";
    position: absolute;

    top: -20px;
    right: 0;

    width: 100%;
    height: 20px;
}


/* Dropdown links */

.dropdown-menu a {
    display: block;

    padding: 12px 20px;

    color: #d5dbe0;

    font-size: 13px;
    line-height: 1.8;

    border-bottom: 1px solid rgba(255, 255, 255, .06);

    transition:
        color .2s ease,
        background .2s ease,
        padding .2s ease;
}

.dropdown-menu a:last-child {
    border-bottom: 0;
}

.dropdown-menu a:hover {
    background: rgba(245, 158, 11, .10);
    color: var(--orange);
    padding-right: 25px;
}


/* ================================
   DESKTOP
================================ */

@media (min-width: 801px) {

    .nav-dropdown:hover .dropdown-menu,
    .nav-dropdown:focus-within .dropdown-menu {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
    }
}


/* ================================
   MOBILE
================================ */

@media (max-width: 800px) {

    /* Main grids */

    .cards-grid,
    .stats-grid,
    .about-grid,
    .contact-grid,
    .footer-grid,
    .detail-grid,
    .contact-page-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }


    /* Main navigation */

    nav {
        display: none;

        position: absolute;

        top: 82px;
        right: 0;
        left: 0;

        background: var(--dark);

        padding: 25px;

        flex-direction: column;
        align-items: stretch;

        gap: 10px;
    }

    nav.active {
        display: flex;
    }


    /* Hamburger */

    .menu-button {
        display: block;

        background: none;
        border: 0;

        color: white;

        font-size: 25px;

        cursor: pointer;
    }


    /* Services dropdown */

    .nav-dropdown {
        width: 100%;
    }

    .nav-dropdown-header {
        width: 100%;

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

    .nav-dropdown-header > a {
        flex: 1;
    }

    .dropdown-toggle {
        font-size: 18px;

        padding: 5px 15px;

        transition: transform .2s ease;
    }


    /*
       IMPORTANT:
       On mobile the dropdown stays hidden
       until JS adds .open to .nav-dropdown
    */

    .dropdown-menu {
        position: static;

        width: 100%;

        margin-top: 8px;
        padding: 0;

        background: #18232d;

        border-top: 2px solid var(--orange);

        box-shadow: none;

        opacity: 0;
        visibility: hidden;
        pointer-events: none;

        transform: none;

        display: none;

        transition: none;
    }


    /* Open only after tapping arrow */

    .nav-dropdown.open .dropdown-menu {
        display: block;

        opacity: 1;
        visibility: visible;
        pointer-events: auto;
    }


    /* Rotate arrow */

    .nav-dropdown.open .dropdown-toggle {
        transform: rotate(180deg);
    }


    .dropdown-menu::before {
        display: none;
    }


    .dropdown-menu a {
        display: block;

        padding: 12px 15px;

        font-size: 13px;

        border-bottom: 1px solid rgba(255,255,255,.06);
    }


    /* Detail page */

    .detail-sidebar {
        position: static;
    }

    .detail-image {
        height: 300px;
    }


    /* Contact */

    .contact-form-box {
        padding: 25px;
    }


    /* Hero */

    .hero {
        min-height: 580px;
    }

    .hero-video {
        object-position: center;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }


    /* CTA */

    .cta-content {
        flex-direction: column;
        align-items: flex-start;
    }
}