/* Precision Metals Engineering Design System */
:root {
    /* Machined Metals Palette */
    --carbon-black: #0B0E10;
    --graphite: #1A1D21;
    --tungsten: #313740;
    --titanium: #4A5158;
    --steel: #8B949E;
    --aluminum: #C9D1D9;
    --chrome: #E6EDF3;

    /* Engineering Accents */
    --laser-green: #A9E702;
    --plasma-blue: #00D4FF;
    --heat-orange: #FF6B2B;
    --coolant-cyan: #22D3EE;
    --safety-yellow: #FFD700;
    --oxide-purple: #8B5CF6;

    /* Functional Colors */
    --pass-green: #10B981;
    --warning-amber: #F59E0B;
    --fail-red: #EF4444;
    --info-blue: #3B82F6;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;

    /* Shadows */
    --shadow-surface: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-raised: 0 4px 8px rgba(0, 0, 0, 0.5);
    --shadow-floating: 0 8px 24px rgba(0, 0, 0, 0.6);
    --shadow-lifted: 0 16px 48px rgba(0, 0, 0, 0.7);

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--aluminum);
    background: var(--carbon-black);
    position: relative;
    overflow-x: hidden;
}

/* Technical Background Pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 1px 1px, rgba(201, 209, 217, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 1;
}

/* Metallic Gradient Overlay */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top, rgba(230, 237, 243, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: 2;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

/* Typography - Metallic Text Effects */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--chrome);
}

h1 {
    font-size: 3.5rem;
    font-weight: 300;
    line-height: 1.4;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, var(--aluminum) 0%, var(--chrome) 45%, var(--aluminum) 50%, var(--steel) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

h2 {
    font-size: 2.5rem;
    line-height: 1.4;
    margin-bottom: 1.5rem;
    color: var(--chrome);
}

h3 {
    font-size: 1.75rem;
    color: var(--aluminum);
}

h4 {
    font-size: 1.25rem;
    color: var(--aluminum);
}

p {
    margin-bottom: 1rem;
    color: var(--steel);
}

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

a:hover {
    color: var(--plasma-blue);
}

/* Header - Precision Navigation */
header {
    background: rgba(11, 14, 16, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201, 209, 217, 0.1);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
    overflow: visible;
}

/* Static laser glow at bottom of header - centered */
header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--laser-green), transparent);
    box-shadow: 0 0 10px rgba(169, 231, 2, 0.6);
}

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

.logo {
    display: inline-flex;
    align-items: center;
    position: relative;
}

.logo img {
    max-height: 100px;
    width: auto;
    height: auto;
    display: block;
    transition: var(--transition);
}

.logo:hover img {
    filter: drop-shadow(0 0 10px rgba(169, 231, 2, 0.5));
    transform: scale(1.05);
}

.main-nav {
    display: flex;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.main-nav a {
    color: var(--steel);
    font-weight: 400;
    position: relative;
    transition: var(--transition);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    right: 50%;
    height: 2px;
    background: var(--laser-green);
    box-shadow: 0 0 8px rgba(169, 231, 2, 0.6);
    opacity: 0;
    transition: var(--transition);
}

.main-nav a:hover {
    color: var(--chrome);
}

.main-nav a:hover::after {
    left: 0;
    right: 0;
    opacity: 1;
}

.dropdown {
    position: relative;
}

.dropdown-arrow {
    color: var(--laser-green);
    font-size: 0.8em;
    margin-left: 0.25rem;
    transition: transform 0.3s ease;
}

.dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(26, 29, 33, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(201, 209, 217, 0.1);
    border-radius: var(--radius-md);
    padding: 0.5rem 0;
    min-width: 280px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    box-shadow: var(--shadow-floating);
    z-index: 1100;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(8px);
}

.dropdown-menu a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--steel);
    transition: var(--transition);
}

.dropdown-menu a:hover {
    background: rgba(169, 231, 2, 0.1);
    color: var(--chrome);
}

.dropdown-divider {
    height: 1px;
    background: rgba(201, 209, 217, 0.1);
    margin: 0.5rem 0;
}

.mobile-menu-toggle {
    display: none;
}

/* Hero Section - Engineered Impact */
.hero {
    padding: 8rem 0;
    text-align: center;
    position: relative;
    background: linear-gradient(180deg, rgba(26, 29, 33, 0.3) 0%, var(--carbon-black) 100%);
    overflow: hidden;
    --parallax-offset: 0px;
}

/* Static laser glow at top of hero - centered */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--laser-green), transparent);
    box-shadow: 0 0 10px rgba(169, 231, 2, 0.6);
}

/* Removed scan animation - now using static laser glows */

/* Technical grid pattern background with gears */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        url('../images/pipes_bg.jpg'),
        repeating-linear-gradient(0deg, transparent, transparent 39px, rgba(201, 209, 217, 0.01) 39px, rgba(201, 209, 217, 0.01) 40px),
        repeating-linear-gradient(90deg, transparent, transparent 39px, rgba(201, 209, 217, 0.01) 39px, rgba(201, 209, 217, 0.01) 40px);
    background-size: cover, 40px 40px, 40px 40px;
    background-position: center, 0 0, 0 0;
    background-repeat: no-repeat, repeat, repeat;
    opacity: 0.15;
    pointer-events: none;
    transform: translateY(var(--parallax-offset));
}

.hero .container {
    position: relative;
    z-index: 3;
}

.hero h1 {
    margin-bottom: 1.5rem;
    animation: metallic-shimmer 3s ease-in-out infinite;
}

@keyframes metallic-shimmer {
    0%, 100% { opacity: 0.9; }
    50% { opacity: 1; }
}

.hero .lead {
    font-size: 1.5rem;
    color: var(--steel);
    margin-bottom: 3rem;
    letter-spacing: 0.1em;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons - Precision Controls */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--laser-green), #8BC400);
    color: var(--carbon-black);
    border: none;
    border-radius: var(--radius-pill);
    box-shadow: 0 4px 12px rgba(169, 231, 2, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(169, 231, 2, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
    color: var(--carbon-black);
}

.btn-secondary {
    background: transparent;
    color: var(--chrome);
    border: 1px solid rgba(201, 209, 217, 0.3);
    border-radius: var(--radius-lg);
    position: relative;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(201, 209, 217, 0.1), transparent);
    transition: left 0.5s ease;
}

.btn-secondary:hover {
    color: var(--chrome);
    border-color: rgba(201, 209, 217, 0.5);
}

.btn-secondary:hover::before {
    left: 100%;
}

.btn-success {
    background: linear-gradient(135deg, var(--pass-green), #059669);
    color: white;
    border: none;
    border-radius: var(--radius-pill);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-link {
    color: var(--laser-green);
    display: inline-flex;
    align-items: center;
    font-weight: 500;
    position: relative;
}

.btn-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--laser-green);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.btn-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Sections */
.section {
    padding: 5rem 0;
    position: relative;
}

.section-alt {
    background: linear-gradient(135deg, rgba(26, 29, 33, 0.4) 0%, rgba(26, 29, 33, 0.2) 100%);
}

.section-heading {
    text-align: center;
    margin-bottom: 4rem;
}

.section-heading h2 {
    background: linear-gradient(135deg, var(--chrome) 0%, var(--aluminum) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-heading p {
    font-size: 1.25rem;
    color: var(--steel);
}

/* Services Grid */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: linear-gradient(135deg, rgba(26, 29, 33, 0.9), rgba(26, 29, 33, 0.7));
    backdrop-filter: blur(10px);
    border: 1px solid rgba(201, 209, 217, 0.1);
    border-radius: var(--radius-md);
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--plasma-blue) 20%, var(--laser-green) 50%, var(--plasma-blue) 80%, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lifted);
    border-color: rgba(169, 231, 2, 0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: grayscale(0.3);
}

.service-icon img {
    width: 100%;
    height: 200px;
    border-radius: var(--radius-lg);
    object-fit: cover;
    transition: var(--transition);
    filter: none;
}

.service-icon img:hover {
    box-shadow: 0 0 20px rgba(169, 231, 2, 0.6);
    transform: scale(1.05);
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
    flex-grow: 1;
}

/* Content with Image */
.content-with-image {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-with-image.reverse {
    direction: rtl;
}

.content-with-image.reverse .content-text,
.content-with-image.reverse .story-box {
    direction: ltr;
    text-align: left;
}

.content-text h2 {
    margin-bottom: 1.5rem;
}

.content-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.content-image img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-floating);
    filter: brightness(0.9) contrast(1.1);
}

/* Features List */
.features-list {
    display: grid;
    gap: 2rem;
}

.feature-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    align-items: start;
    padding: 1.5rem;
    background: rgba(26, 29, 33, 0.3);
    border-radius: var(--radius-md);
    border: 1px solid rgba(201, 209, 217, 0.05);
    transition: var(--transition);
}

.feature-item:hover {
    background: rgba(26, 29, 33, 0.5);
    border-color: rgba(169, 231, 2, 0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--laser-green), var(--plasma-blue));
    color: var(--carbon-black);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    font-weight: bold;
}

.feature-text h4 {
    margin-bottom: 0.5rem;
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.process-step {
    text-align: center;
    position: relative;
    padding: 2rem 1rem;
}

.process-step::after {
    content: '';
    position: absolute;
    top: 35px;
    left: calc(50% + 30px);
    width: calc(100% - 60px);
    height: 2px;
    background: linear-gradient(90deg, var(--laser-green) 0%, transparent 100%);
    opacity: 0.3;
}

.process-step:last-child::after {
    display: none;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(169, 231, 2, 0.2), rgba(0, 212, 255, 0.2));
    border: 2px solid var(--laser-green);
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--laser-green);
    box-shadow: 0 0 20px rgba(169, 231, 2, 0.3);
}

/* Industries Grid */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.industry-item {
    text-align: center;
    padding: 2rem 1rem;
    background: rgba(26, 29, 33, 0.4);
    border-radius: var(--radius-md);
    border: 1px solid rgba(201, 209, 217, 0.1);
    transition: var(--transition);
}

.industry-item:hover {
    transform: translateY(-4px);
    background: rgba(26, 29, 33, 0.6);
    border-color: rgba(169, 231, 2, 0.2);
}

.industry-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    filter: grayscale(0.3);
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 4rem;
    background: linear-gradient(135deg, rgba(169, 231, 2, 0.05), rgba(0, 212, 255, 0.05));
    border-radius: var(--radius-xl);
    border: 1px solid rgba(201, 209, 217, 0.1);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(169, 231, 2, 0.1) 0%, transparent 70%);
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-phones {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.phone-item {
    font-size: 1.25rem;
    color: var(--chrome);
}

/* Footer */
footer {
    background: var(--graphite);
    border-top: 1px solid rgba(201, 209, 217, 0.1);
    padding: 3rem 0 1rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-column h4 {
    margin-bottom: 1.5rem;
    color: var(--laser-green);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--steel);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--chrome);
}

.footer-contact p {
    margin-bottom: 0.75rem;
    color: var(--aluminum);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(201, 209, 217, 0.1);
    color: var(--steel);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .logo img {
        max-height: 80px;
    }

    .main-nav {
        position: fixed !important;
        top: 0 !important;
        left: -100% !important;
        width: 80% !important;
        max-width: 300px !important;
        height: 100vh !important;
        background: var(--graphite) !important;
        transition: left 0.3s ease !important;
        z-index: 999 !important;
        padding: 4rem 2rem !important;
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3) !important;
        display: flex !important;
        flex-direction: column !important;
    }

    .main-nav.active {
        left: 0 !important;
        transform: translateX(0) !important;
    }

    .mobile-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }

    .mobile-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 1rem !important;
        list-style: none !important;
        padding: 0 !important;
        margin: 0 !important;
        width: 100% !important;
    }

    .main-nav ul li {
        width: 100% !important;
    }

    .main-nav ul li a {
        color: var(--chrome) !important;
        text-decoration: none !important;
        padding: 1rem 0 !important;
        border-bottom: 1px solid rgba(201, 209, 217, 0.2) !important;
        display: block !important;
        width: 100% !important;
        font-size: 1.1rem !important;
    }

    .mobile-menu-toggle {
        display: block;
        background: none;
        border: 2px solid var(--chrome);
        border-radius: 4px;
        color: var(--chrome);
        font-size: 1.2rem;
        cursor: pointer;
        padding: 8px 12px;
        transition: var(--transition);
    }

    .mobile-menu-toggle:hover {
        background: var(--chrome);
        color: var(--graphite);
    }

    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        margin-left: 1rem;
        margin-top: 0.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .content-with-image {
        grid-template-columns: 1fr;
    }

    .process-step::after {
        display: none;
    }

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

    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    /* Contact Form Mobile Optimization */
    .story-box {
        padding: 1rem !important;
    }

    .contact-form {
        padding: 1rem !important;
    }

    .container {
        padding: 0 10px;
    }

    .section {
        padding: 2rem 0;
    }

    /* Make email/phone grid single column on mobile */
    .contact-form > div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
}

/* Section Background Decorations */
.cogs-bg-left {
    position: relative;
    overflow: hidden;
}

.cogs-bg-left::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 50%;
    background-image: url('../images/cogs-bg-left.jpg');
    background-size: contain;
    background-position: left center;
    background-repeat: no-repeat;
    opacity: 0.25;
    pointer-events: none;
    z-index: 1;
}

.cogs-bg-right {
    position: relative;
    overflow: hidden;
}

.cogs-bg-right::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 50%;
    background-image: url('../images/cogs-bg-right.jpg');
    background-size: contain;
    background-position: right center;
    background-repeat: no-repeat;
    opacity: 0.25;
    pointer-events: none;
    z-index: 1;
}

.cogs-bg-left .container,
.cogs-bg-right .container {
    position: relative;
    z-index: 2;
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero .lead {
        font-size: 1.25rem;
    }
}