/* =======================================
   Custom CSS variables for Theming (Light Corporate)
======================================= */
:root {
    /* Color Palette - Professional Light Theme */
    --bg-main: #ffffff;
    --bg-darker: #f4f7f6;
    --bg-panel: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.9);
    --border-glass: rgba(0, 0, 0, 0.08);
    --border-accent: rgba(230, 92, 0, 0.3);

    --accent: #e65c00;
    /* Industrial Orange */
    --accent-hover: #cc5200;
    --accent-secondary: #ff8c42;

    --text-main: #1d1d1f;
    --text-muted: #5a6066;

    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

::selection {
    background: var(--accent);
    color: #fff;
}

/* =======================================
   Reset & Base Styles
======================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
    /* Soft, highly premium Animated Corporate Gradient */
    background: linear-gradient(-45deg, #ffffff, #f0f4f8, #e2e8f0, #ffffff);
    background-size: 400% 400%;
    animation: premiumGradient 15s ease infinite;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    /* Sleek dynamic engineering blueprint grid overlay */
    background-image:
        linear-gradient(rgba(230, 92, 0, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(230, 92, 0, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    z-index: -1;
    pointer-events: none;
}

@keyframes premiumGradient {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

/* Stunning gradient text utility */
.text-gradient {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

a {
    text-decoration: none;
    color: var(--text-main);
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* =======================================
   Layout Classes
======================================= */
.container {
    max-width: 1250px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-padding {
    padding: 7rem 0;
}

.bg-darker {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
}

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

.w-100 {
    width: 100%;
}

.grid-2,
.grid-3,
.grid-4 {
    display: grid;
    gap: 3rem;
}

.grid-2 {
    grid-template-columns: 1fr 1fr;
    align-items: center;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* =======================================
   Typography & Buttons
======================================= */
.section-title {
    font-size: 2.8rem;
    margin-bottom: 3.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-title span {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    color: var(--text-muted);
    margin-bottom: 4rem;
    margin-top: -2.5rem;
    font-size: 1.15rem;
}

.btn {
    display: inline-block;
    padding: 1.1rem 2.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 50px;
    cursor: pointer;
    border: none;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    box-shadow: 0 10px 20px rgba(230, 92, 0, 0.2);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent));
    z-index: -1;
    transition: opacity 0.4s ease;
    opacity: 0;
}

.btn-primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 30px rgba(230, 92, 0, 0.35);
    color: #fff;
}

.btn-primary:hover::before {
    opacity: 1;
}

/* =======================================
   Header & Navbar
======================================= */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 0;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    padding: 1rem 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border-glass);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: #111;
}

.logo span {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header.scrolled .logo a {
    color: #111;
}

header:not(.scrolled) .logo a {
    color: #080606;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

.nav-links a {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    color: #111;
}

header:not(.scrolled) .nav-links a {
    color: #080606;
    text-shadow: none;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--accent);
}

.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 28px;
    height: 3px;
    background-color: var(--text-main);
    margin: 6px;
    transition: all 0.3s ease;
    border-radius: 2px;
}

header:not(.scrolled) .burger div {
    background-color: #fff;
}

/* =======================================
   Hero Section
======================================= */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    /* Clean, professional steel structure background */
    background: url('https://images.unsplash.com/photo-1565814329452-e1efa11c5e8d?q=80&w=2500&auto=format&fit=crop') center/cover fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.4) 100%);
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 850px;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1px;
    color: #111;
}

.hero h1 span {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.3rem;
    color: #444;
    margin-bottom: 2.5rem;
    max-width: 650px;
    font-weight: 500;
}

/* =======================================
   Glassmorphism Box
======================================= */
.glass-box {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.08);
    position: relative;
    overflow: hidden;
}

.glass-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.8), transparent);
    transform: skewX(-20deg);
    transition: 0.5s;
    pointer-events: none;
}

.glass-box:hover::before {
    left: 150%;
}

.glass-box h3 {
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
    color: var(--accent);
}

.glass-box ul li {
    margin-bottom: 1rem;
    color: var(--text-muted);
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.glass-box ul li i {
    color: #27ae60;
    margin-top: 6px;
}

.glass-box hr {
    border: 0;
    border-top: 1px solid var(--border-glass);
    margin: 2rem 0;
}

/* =======================================
   About Section
======================================= */
.about p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.15rem;
}

.stats {
    display: flex;
    gap: 4rem;
    margin-top: 3.5rem;
    flex-wrap: wrap;
}

.stat-item h3 {
    font-size: 3.5rem;
    margin-bottom: 0.2rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-item p {
    color: var(--text-main);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =======================================
   Services Section
======================================= */
.service-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    padding: 3rem 2.5rem;
    border-radius: 12px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.03);
}

.service-card:hover {
    transform: translateY(-12px);
    border-color: var(--border-accent);
    background: #fff;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 0 20px rgba(230, 92, 0, 0.1);
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    background: rgba(230, 92, 0, 0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: var(--accent);
    font-size: 1.8rem;
    transition: var(--transition);
}

.service-card:hover .icon-wrapper {
    background: var(--accent);
    color: #fff;
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    margin-bottom: 1.2rem;
    font-size: 1.4rem;
    letter-spacing: 0.5px;
}

.service-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.service-card ul {
    color: var(--text-muted);
    font-family: var(--font-body);
    font-weight: 500;
}

.service-card ul li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.service-card ul li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    color: var(--accent);
    font-size: 0.8rem;
}

/* =======================================
   Safety Section
======================================= */
.safety-text p {
    color: var(--text-muted);
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
}

.check-list li {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    display: flex;
    gap: 15px;
    align-items: flex-start;
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.check-list li i {
    color: var(--accent);
    font-size: 1.4rem;
    margin-top: 2px;
}

.warning h3 {
    background: linear-gradient(135deg, #d35400, #c0392b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.warning i {
    color: #d35400 !important;
}

/* =======================================
   Equipment Section
======================================= */
.tool-card {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.04);
}

.tool-card:hover {
    border-color: var(--border-accent);
    background: #fff;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1), 0 0 15px rgba(230, 92, 0, 0.15);
    transform: translateY(-8px);
}

.tool-img {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
    background: #f0f0f0;
}

.tool-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.1), transparent);
    pointer-events: none;
}

.tool-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.tool-card:hover .tool-img img {
    transform: scale(1.15);
    filter: brightness(1.05);
}

.tool-info {
    padding: 1.8rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    width: 100%;
    background: #fff;
    z-index: 2;
    border-top: 1px solid var(--border-glass);
}

.tool-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-main);
}

.tool-info span {
    background: rgba(230, 92, 0, 0.1);
    border: 1px solid rgba(230, 92, 0, 0.2);
    color: var(--accent);
    padding: 0.4rem 1rem;
    border-radius: 30px;
    font-size: 0.85rem;
    font-family: var(--font-heading);
    font-weight: 700;
    white-space: nowrap;
}

.tool-card.highlight .tool-img {
    height: 260px;
}

.tool-card.highlight .tool-info {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
}

.tool-card.highlight h4 {
    font-size: 1.4rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tool-card.highlight span {
    background: transparent;
    border: none;
    color: var(--text-muted);
    white-space: normal;
    padding: 0;
    box-shadow: none;
    font-weight: 500;
    font-family: var(--font-body);
}

.tools-footer {
    margin-top: 4rem;
    color: var(--text-muted);
    max-width: 800px;
    margin-inline: auto;
    font-size: 1.1rem;
    font-weight: 500;
}

/* =======================================
   Clients Section
======================================= */
.client-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.8rem;
}

.client-item {
    background: var(--bg-panel);
    border: 1px solid var(--border-glass);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 1px;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.03);
}

.client-item:hover {
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(230, 92, 0, 0.3);
    border-color: transparent;
}

.client-item span {
    display: block;
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.8rem;
    font-weight: 500;
    letter-spacing: 0;
    transition: var(--transition);
}

.client-item:hover span {
    color: rgba(255, 255, 255, 0.9);
}

/* =======================================
   Footer / Contact
======================================= */
.footer {
    background-color: #111418;
    border-top: none;
    position: relative;
    overflow: hidden;
    color: #fff;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 100px;
    background: rgba(230, 92, 0, 0.2);
    filter: blur(80px);
    pointer-events: none;
}

.footer-info h2 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.footer-info p {
    color: #aab0b6;
    margin-bottom: 2.5rem;
    font-size: 1.1rem;
}

.contact-details p {
    margin-bottom: 1.2rem;
    color: #fff;
    display: flex;
    gap: 15px;
    align-items: center;
    font-size: 1.05rem;
}

.contact-details i {
    color: var(--accent);
    width: 25px;
    text-align: center;
    font-size: 1.2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

input,
textarea {
    width: 100%;
    padding: 1.2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 15px rgba(230, 92, 0, 0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 4rem;
    color: #aab0b6;
    font-size: 0.95rem;
}

/* =======================================
   Animations
======================================= */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 1s cubic-bezier(0.25, 0.8, 0.25, 1), transform 1s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.slide-up {
    opacity: 0;
    transform: translateY(50px);
    transition: opacity 1s cubic-bezier(0.25, 0.8, 0.25, 1), transform 1s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.appear {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

.delay-1 {
    transition-delay: 0.15s;
}

.delay-2 {
    transition-delay: 0.3s;
}

.delay-3 {
    transition-delay: 0.45s;
}

/* =======================================
   Responsive Design
======================================= */
/* Tablet Down */
@media screen and (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

    .hero h1 {
        font-size: 3.5rem;
    }
}

/* Mobile Adjustments */
@media screen and (max-width: 900px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .hero {
        text-align: center;
    }

    .hero-overlay {
        background: linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0.95) 100%);
    }

    .hero-content {
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .reverse .safety-text {
        order: -1;
    }

    .section-padding {
        padding: 5rem 0;
    }

    .section-title {
        font-size: 2.3rem;
    }
}

@media screen and (max-width: 768px) {

    /* Navbar Burger fixes */
    .nav-links {
        position: absolute;
        right: 0;
        top: 100%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        align-items: center;
        width: 100%;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        padding-top: 3rem;
        gap: 2rem;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }

    .nav-links.nav-active {
        transform: translateX(0%);
    }

    .nav-links a {
        font-size: 1.2rem;
        color: #111 !important;
        text-shadow: none !important;
    }

    .burger {
        display: block;
    }

    .toggle .line1 {
        transform: rotate(-45deg) translate(-6px, 6px);
        background: var(--accent) !important;
    }

    .toggle .line2 {
        opacity: 0;
    }

    .toggle .line3 {
        transform: rotate(45deg) translate(-6px, -6px);
        background: var(--accent) !important;
    }

    /* Layout reflow for very small screens */
    .grid-3 {
        grid-template-columns: 1fr;
    }

    .grid-4 {
        grid-template-columns: 1fr;
    }

    .stats {
        flex-direction: column;
        gap: 2rem;
        text-align: center;
    }

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

    .glass-box {
        padding: 2rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .container {
        padding: 0 1.5rem;
    }
}

@media screen and (max-width: 480px) {
    .hero h1 {
        font-size: 2.8rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .tool-info {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .check-list li {
        flex-direction: column;
        text-align: center;
        align-items: center;
    }
}