/* ==========================================================================
   ASJV CAD Solutions Design System & Styling
   ========================================================================== */

/* Variables */
:root {
    --bg-primary: #070708;
    --bg-secondary: #0c0d10;
    --bg-card: rgba(12, 13, 16, 0.6);
    --accent-orange: #ff5500;
    --accent-orange-dim: rgba(255, 85, 0, 0.1);
    --accent-orange-glow: rgba(255, 85, 0, 0.35);
    --text-white: #ffffff;
    --text-silver: #adb3bf;
    --text-dark: #4a4e59;
    --border-color: rgba(255, 85, 0, 0.12);
    --border-hover: rgba(255, 85, 0, 0.4);
    
    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-smooth: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 0.2s ease;
}

/* Base resets & styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-white);
    font-family: var(--font-body);
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-orange);
}

/* --------------------------------------------------------------------------
   Technical Background Grid
   -------------------------------------------------------------------------- */
.tech-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background-color: var(--bg-primary);
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(var(--border-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--border-color) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center;
    opacity: 0.35;
    pointer-events: none;
}

/* Particle Canvas overlaying background */
#particle-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.8;
}



/* --------------------------------------------------------------------------
   Header & Navigation
   -------------------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 100;
    transition: padding 0.4s, background-color 0.4s, border-bottom 0.4s;
    border-bottom: 1px solid transparent;
}

.header.sticky {
    padding: 12px 0;
    background-color: rgba(7, 7, 8, 0.75);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-container {
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 48px;
    width: auto;
    display: block;
    filter: drop-shadow(0 0 5px rgba(255, 85, 0, 0.15));
}

.nav {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-link {
    color: var(--text-silver);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    position: relative;
    padding: 6px 0;
    transition: var(--transition-smooth);
    display: inline-block;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-white);
    transform: translateY(-2px);
    text-shadow: 0 0 10px var(--accent-orange-glow);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--accent-orange);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    box-shadow: 0 0 8px var(--accent-orange);
}

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

/* --------------------------------------------------------------------------
   Buttons Style
   -------------------------------------------------------------------------- */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--text-white);
    cursor: pointer;
    background: transparent;
    border: none;
    outline: none;
    border-radius: 4px;
    transition: var(--transition-smooth);
    overflow: visible; /* Needed for border tracing */
}

/* SVG border trace */
.btn-border {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.btn-border rect {
    stroke-dasharray: 100;
    stroke-dashoffset: 100;
    transition: stroke-dashoffset 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.btn:hover .btn-border rect {
    stroke-dashoffset: 0;
}

/* Arrow Wrap Effect */
.btn-arrow-wrapper {
    position: relative;
    display: inline-block;
    width: 14px;
    height: 14px;
    overflow: hidden;
    margin-left: 10px;
    vertical-align: middle;
}

.btn-arrow {
    position: absolute;
    left: 0;
    top: -2px;
    font-size: 1rem;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.btn-arrow.clone {
    transform: translateX(-150%);
}

.btn:hover {
    transform: translateX(-4px);
    box-shadow: 0 0 15px var(--accent-orange-glow);
}

.btn:hover .btn-arrow {
    transform: translateX(150%);
}

.btn:hover .btn-arrow.clone {
    transform: translateX(0);
}

/* Primary Button (Filled Orange) */
.btn-primary {
    background-color: var(--accent-orange);
    box-shadow: 0 4px 15px rgba(255, 85, 0, 0.2);
}

.btn-primary .btn-border rect {
    stroke: var(--text-white);
    stroke-width: 2;
}

.btn-primary:hover {
    background-color: var(--accent-orange-hover);
}

/* Secondary Button (Ghost with Orange stroke) */
.btn-secondary {
    border: 1px solid var(--border-color);
}

.btn-secondary .btn-border rect {
    stroke: var(--accent-orange);
    stroke-width: 2;
}

.btn-secondary:hover {
    background-color: var(--accent-orange-dim);
    border-color: transparent;
}

/* Specific buttons sizes */
.btn-nav {
    padding: 10px 20px;
    font-size: 0.7rem;
    border: 1px solid var(--border-color);
}
.btn-nav .btn-border rect {
    stroke: var(--accent-orange);
}
.btn-nav:hover {
    background-color: var(--accent-orange-dim);
    border-color: transparent;
}

/* Mobile Menu controls */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-white);
    transition: var(--transition-smooth);
}

.mobile-nav {
    display: none;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    padding-bottom: 50px;
    overflow: hidden;
}

.hero-container {
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.tag-accent {
    color: var(--text-silver);
}

.tag-primary {
    color: var(--accent-orange);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.5px;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.title-line {
    display: block;
}

.accent-text {
    color: var(--accent-orange);
    text-shadow: 0 0 20px rgba(255, 85, 0, 0.2);
}

.hero-desc {
    font-size: 0.95rem;
    color: var(--text-silver);
    max-width: 540px;
    margin-bottom: 40px;
    line-height: 1.7;
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

/* --------------------------------------------------------------------------
   Mechanical Gear Experience
   -------------------------------------------------------------------------- */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.gear-assembly-container {
    position: relative;
    width: 550px;
    height: 550px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Outer concentric technical rings */
.blueprint-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 85, 0, 0.06);
    pointer-events: none;
    transition: var(--transition-smooth);
}

.ring-outer {
    width: 550px;
    height: 550px;
    border-style: dashed;
    animation: spinClockwise 120s linear infinite;
}

.ring-middle {
    width: 480px;
    height: 480px;
    border: 1px double rgba(255, 85, 0, 0.12);
    animation: spinCounterClockwise 80s linear infinite;
}

.ring-inner {
    width: 400px;
    height: 400px;
    border-style: dotted;
    animation: spinClockwise 40s linear infinite;
}

.blueprint-crosshairs {
    position: absolute;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.blueprint-crosshairs::before, .blueprint-crosshairs::after {
    content: '';
    position: absolute;
    background: rgba(255, 85, 0, 0.04);
}

.blueprint-crosshairs::before {
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
}

.blueprint-crosshairs::after {
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
}

.blueprint-coordinates {
    position: absolute;
    bottom: 20px;
    right: 20px;
    font-family: var(--font-heading);
    font-size: 0.6rem;
    color: rgba(255, 85, 0, 0.4);
    display: flex;
    flex-direction: column;
    gap: 4px;
    pointer-events: none;
    letter-spacing: 1px;
}

/* Gear Wrapper enabling perspective */
.gear-wrapper {
    position: relative;
    width: 460px;
    height: 460px;
    perspective: 1200px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gear-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transform-style: preserve-3d;
    filter: drop-shadow(0 15px 35px rgba(0, 0, 0, 0.6)) drop-shadow(0 0 10px rgba(255, 85, 0, 0.05));
    pointer-events: none;
    user-select: none;
}

/* Rotating reflection overlay */
.gear-reflection {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: radial-gradient(circle at var(--ref-x, 50%) var(--ref-y, 50%), rgba(255, 255, 255, 0.12) 0%, rgba(255, 85, 0, 0.03) 40%, transparent 70%);
    pointer-events: none;
    mix-blend-mode: overlay;
    z-index: 2;
    transition: background 0.1s ease-out;
}

/* --------------------------------------------------------------------------
   Services Section & Cards
   -------------------------------------------------------------------------- */
.services-section {
    padding: 70px 0;
    background-color: var(--bg-secondary);
    position: relative;
}

.section-container {
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 35px;
}

.section-tag {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-orange);
    letter-spacing: 2px;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 15px;
}

.service-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 18px 12px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    min-height: 205px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: border-color var(--transition-smooth), box-shadow var(--transition-smooth);
    overflow: hidden;
    cursor: pointer;
    perspective: 1000px;
    transform-style: preserve-3d;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(255, 85, 0, 0.06) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.card-icon-wrapper {
    color: var(--accent-orange);
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), filter var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon {
    display: block;
    filter: drop-shadow(0 0 3px rgba(255, 85, 0, 0.2));
}

.card-title {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    line-height: 1.25;
    text-transform: uppercase;
    margin-bottom: 0;
}

.card-desc {
    font-size: 0.72rem;
    color: var(--text-silver);
    line-height: 1.45;
    margin-bottom: auto;
    font-weight: 300;
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    margin-top: 12px;
}

.card-arrow-wrapper {
    display: inline-block;
    position: relative;
    width: 18px;
    height: 18px;
    overflow: hidden;
}

.card-arrow {
    position: absolute;
    right: 0;
    top: -2px;
    font-size: 1.1rem;
    color: var(--accent-orange);
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Card Hover actions */
.service-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 15px 35px rgba(255, 85, 0, 0.12), 0 0 1px rgba(255, 85, 0, 0.2);
}

.service-card:hover .card-icon-wrapper {
    transform: scale(1.08);
    filter: drop-shadow(0 0 8px var(--accent-orange));
}

.service-card:hover .card-arrow {
    transform: translateX(180%);
}

.service-card:hover .card-arrow-wrapper::after {
    content: '→';
    position: absolute;
    left: -18px;
    top: -2px;
    font-size: 1.1rem;
    color: var(--accent-orange);
    animation: slideInArrow 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

@keyframes slideInArrow {
    to {
        transform: translateX(18px);
    }
}

/* Initial state for ScrollTrigger entrance (controlled dynamically by class) */
.service-card.reveal-init {
    opacity: 0;
    transform: translateY(50px) rotateX(12deg) scale(0.95);
    filter: blur(6px);
}



/* --------------------------------------------------------------------------
   Contact Section & Form controls
   -------------------------------------------------------------------------- */
.contact-section {
    padding: 70px 0;
    background-color: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 80px;
}

.contact-desc {
    font-size: 0.95rem;
    color: var(--text-silver);
    line-height: 1.7;
    margin-bottom: 40px;
    font-weight: 300;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.method-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.method-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--accent-orange);
    background: rgba(255, 85, 0, 0.02);
}

.method-details {
    display: flex;
    flex-direction: column;
}

.method-label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    color: var(--text-dark);
    letter-spacing: 1px;
}

.method-val {
    font-size: 0.9rem;
    color: var(--text-white);
    font-weight: 500;
}

.contact-form-container {
    background: rgba(12, 13, 16, 0.4);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 40px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

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

.form-group {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    font-weight: 700;
    color: var(--text-silver);
    letter-spacing: 1px;
}

.form-group input, 
.form-group select, 
.form-group textarea {
    background: rgba(7, 7, 8, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 14px 18px;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: var(--transition-smooth);
    outline: none;
    width: 100%;
}

.form-group input::placeholder, 
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.2);
}

/* Custom styling for select option dropdown */
.form-group select option {
    background-color: var(--bg-primary);
    color: var(--text-white);
}

/* Orange focus glow effect */
.input-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 1px;
    background-color: var(--accent-orange);
    transition: width var(--transition-smooth), left var(--transition-smooth);
    box-shadow: 0 0 8px var(--accent-orange);
    pointer-events: none;
}

.form-group input:focus ~ .input-glow,
.form-group select:focus ~ .input-glow,
.form-group textarea:focus ~ .input-glow {
    width: 100%;
    left: 0;
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus {
    border-color: rgba(255, 85, 0, 0.5);
    box-shadow: 0 0 10px rgba(255, 85, 0, 0.1);
}

.btn-submit {
    width: 100%;
    padding: 16px 0;
    background-color: var(--accent-orange);
    margin-top: 10px;
}

.btn-submit .btn-border rect {
    stroke: var(--text-white);
    stroke-width: 2;
}

.btn-submit:hover {
    background-color: var(--accent-orange-hover);
}

/* --------------------------------------------------------------------------
   Footer Section
   -------------------------------------------------------------------------- */
.footer {
    padding: 50px 0 25px 0;
    border-top: 1px solid var(--border-color);
}

.footer-container {
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 0.6fr 1.4fr;
    gap: 80px;
    margin-bottom: 40px;
}

.footer-logo {
    height: 38px;
    margin-bottom: 20px;
}

.footer-desc {
    font-size: 0.8rem;
    color: var(--text-dark);
    max-width: 280px;
}

.footer-tag {
    font-family: var(--font-heading);
    font-size: 0.65rem;
    color: var(--accent-orange);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 20px;
}

.footer-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-menu a {
    color: var(--text-silver);
    text-decoration: none;
    font-size: 0.8rem;
    transition: var(--transition-fast);
}

.footer-menu a:hover {
    color: var(--accent-orange);
    padding-left: 5px;
}

.security-desc {
    font-size: 0.8rem;
    color: var(--text-silver);
    line-height: 1.7;
    font-weight: 300;
}

.footer-bottom {
    width: 90%;
    max-width: 1300px;
    margin: 0 auto;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 85, 0, 0.05);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.7rem;
    color: var(--text-dark);
    letter-spacing: 0.5px;
}

/* --------------------------------------------------------------------------
   Animations (CSS Keyframes)
   -------------------------------------------------------------------------- */
@keyframes spinClockwise {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes spinCounterClockwise {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(-360deg);
    }
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */

@media (max-width: 1300px) and (min-width: 1025px) {
    .services-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .services-grid > :nth-child(7) {
        grid-column: span 2;
    }
}

/* Tablet View */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero-section {
        min-height: auto;
        padding-top: 130px;
        padding-bottom: 70px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        position: relative;
        text-align: center;
        padding-top: 0;
        min-height: 480px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .hero-content {
        position: relative;
        z-index: 2;
        max-width: 620px;
        margin: 0 auto;
        pointer-events: auto;
    }
    
    .hero-visual {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 100%;
        max-width: 460px;
        height: 100%;
        max-height: 460px;
        opacity: 0.14; /* transparent watermark gear */
        z-index: 1;
        pointer-events: none;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .hero-desc {
        margin: 0 auto 30px auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid > :nth-child(7) {
        grid-column: span 2;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .footer-security {
        grid-column: span 2;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .service-card {
        padding: 22px 18px;
        min-height: 180px;
    }
    
    .card-title {
        font-size: 0.95rem;
    }
    
    .card-desc {
        font-size: 0.85rem;
    }
}

/* Mobile View */
@media (max-width: 768px) {

    
    /* Navigation drawer for mobile */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        display: none;
    }
    
    .header .btn-nav {
        display: none;
    }
    
    .mobile-nav {
        display: block;
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background-color: var(--bg-primary);
        border-left: 1px solid var(--border-color);
        z-index: 99;
        padding: 100px 40px 40px 40px;
        transition: right var(--transition-smooth);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
    }
    
    .mobile-nav.active {
        right: 0;
    }
    
    .mobile-nav-list {
        display: flex;
        flex-direction: column;
        gap: 30px;
        list-style: none;
    }
    
    .mobile-nav-link {
        font-family: var(--font-heading);
        color: var(--text-silver);
        text-decoration: none;
        font-size: 1.1rem;
        letter-spacing: 1px;
        transition: var(--transition-fast);
        display: block;
    }
    
    .mobile-nav-link:hover, .mobile-nav-link.active {
        color: var(--accent-orange);
        padding-left: 5px;
    }
    
    .btn-mobile-cta {
        width: 100%;
        border: 1px solid var(--accent-orange);
        padding: 12px 0;
        margin-top: 20px;
    }
    
    /* Mobile close icon active state */
    .mobile-menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .mobile-menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* Hero scaling & centering */
    .hero-title {
        font-size: 2.5rem;
    }
    
    .gear-assembly-container {
        width: 340px;
        height: 340px;
    }
    
    .gear-wrapper {
        width: 280px;
        height: 280px;
    }
    
    .blueprint-ring {
        display: none; /* Hide outer circles to prevent overflow and clean mobile layout */
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid > :nth-child(7) {
        grid-column: auto;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-security {
        grid-column: auto;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .service-card {
        padding: 24px 20px;
        min-height: auto;
    }
    
    .card-title {
        font-size: 1.05rem;
    }
    
    .card-desc {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}