/* ===================================
   INDUSTRIAL WELDING WEBSITE STYLES
   Design: Bold Industrial Brutalist
   Aesthetic: Raw Metal, High Contrast, Angular
   =================================== */

:root {
    /* Industrial Color Palette */
    --bg: #101315;
    --panel: #181c1f;
    --panel-soft: #1f2529;
    --color-steel: #0a0e14;
    --color-iron: #1a1f2e;
    --color-zinc: #2a3142;
    --color-metal: #3d4456;
    --color-chrome: #e0e4ea;
    --color-aluminum: #fbfbfb;
    
    /* Accent Colors */
    --color-spark: #ff8c00;
    --color-flame: #c76e00;
    --color-heat: #ffa94d;
    --color-weld: #00d4ff;
    
    /* Typography */
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Manrope', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Effects */
    --shadow-sharp: 4px 4px 0 rgba(0, 0, 0, 0.3);
    --shadow-deep: 0 8px 24px rgba(0, 0, 0, 0.4);
    --glow-spark: 0 0 20px rgba(255, 107, 0, 0.6);
}

/* ===================================
   RESET & BASE
   =================================== */

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

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

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--color-chrome);
    line-height: 1.6;
    overflow-x: hidden;
}
body.lightbox-open {
    overflow: hidden;
}

/* Skip Link */
.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-spark);
    color: white;
    padding: 0.5rem 1rem;
    z-index: 10000;
    text-decoration: none;
    font-weight: bold;
}

.skip-link:focus {
    top: 0;
}

/* ===================================
   NAVIGATION
   =================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 20, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 2px solid var(--color-zinc);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 14, 20, 1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand, .footer-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--color-spark);
}

.brand-icon {
    font-size: 2rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

.brand-thin {
    font-weight: 400;
    color: var(--color-chrome);
    margin-left: 0.25rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: 0;
    padding: 0.5rem;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
    transition: all 0.3s ease;
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-spark);
    transition: all 0.3s ease;
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

.nav-toggle.active .hamburger {
    background: transparent;
}

.nav-toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .hamburger::after {
    top: 0;
    transform: rotate(-45deg);
}

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

.nav-link {
    color: var(--color-chrome);
    text-decoration: none;
    font-weight: 400;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-spark);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--color-spark);
}

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

.nav-cta {
    background: var(--color-spark);
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
    border: none;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--color-flame);
    transform: translateY(-2px);
    box-shadow: var(--shadow-deep);
}

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    opacity: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 107, 0, 0.1);
    border: 1px solid var(--color-spark);
    padding: 0.5rem 1.5rem;
    margin-bottom: 2rem;
    font-family: var(--font-body);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.label-icon {
    color: var(--color-spark);
    animation: blink 2s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 10vw, 7rem);
    font-weight: 700;
    line-height: 0.95;
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
}

.title-line {
    display: block;
    animation: fadeInUp 1s ease-out 0.4s both;
    color: white;
}

.title-accent {
    color: var(--color-spark);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.title-location {
    display: block;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 400;
    color: var(--color-weld);
    margin-top: 1rem;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-aluminum);
    margin-bottom: 3rem;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 1s both;
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.btn-primary {
    background: var(--color-spark);
    color: white;
    box-shadow: var(--shadow-sharp);
}

.btn-primary:hover {
    background: var(--color-flame);
    transform: translate(-2px, -2px);
    box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-weld);
    border: 2px solid var(--color-weld);
}

.btn-secondary:hover {
    background: var(--color-weld);
    color: var(--color-steel);
    transform: translate(-2px, -2px);
    box-shadow: var(--shadow-sharp);
}

.btn-arrow {
    font-size: 2rem;
    transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(5px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 1.4s both;
}

.stat {
    text-align: center;
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-spark);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-aluminum);
    margin-top: 0.5rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeInUp 1s ease-out 1.6s both;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-spark), transparent);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(20px); opacity: 0.3; }
}

.scroll-text {
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-metal);
}

/* ===================================
   COMMON SECTION STYLES
   =================================== */

section {
    padding: var(--spacing-xl) 2rem;
    position: relative;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-spark);
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    color: var(--color-chrome);
    line-height: 1;
    text-transform: uppercase;
}

/* ===================================
   SERVICES SECTION
   =================================== */

.services {
    background: var(--color-iron);
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-spark), transparent);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.service-card {
    background: var(--color-steel);
    border: 2px solid var(--color-zinc);
    padding: 2.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--color-spark);
    transition: height 0.5s ease;
}

.service-card:hover::before {
    height: 100%;
}

.service-card:hover {
    border-color: var(--color-spark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-deep);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-spark);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.service-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.service-content h4 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--color-weld);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    letter-spacing: 1px;
}

.service-content ul {
    list-style: none;
    padding-left: 0;
}

.service-content li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
    line-height: 1.6;
}

.service-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-spark);
    font-weight: bold;
}

.service-content li strong {
    color: var(--color-chrome);
    font-weight: 700;
}

.material-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--color-zinc);
    color: var(--color-chrome);
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    border: 1px solid var(--color-metal);
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--color-spark);
    border-color: var(--color-spark);
    color: white;
}

.service-cta {
    display: inline-block;
    color: var(--color-spark);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.service-cta:hover {
    color: var(--color-flame);
    transform: translateX(10px);
}

/* For Whom */
.for-whom {
    background: var(--color-aluminum);
    padding: 3rem;
    margin-top: 4rem;
}

.for-whom h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-chrome);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

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

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

.audience-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.audience-item h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-weld);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.audience-item p {
    color: var(--color-chrome);
    line-height: 1.6;
}

/* ===================================
   WHY US SECTION
   =================================== */

.why-us {
    background: var(--color-steel);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(300px, 1fr));
    gap: 2rem;
}
@media screen and (max-width: 1025px) {
    .benefits-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
}
.benefit-card {
    background: var(--color-iron);
    border: 2px solid var(--color-zinc);
    padding: 2rem;
    position: relative;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    border-color: var(--color-spark);
    transform: translateY(-4px);
}

.benefit-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-zinc);
    line-height: 1;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.benefit-card:hover .benefit-number {
    color: var(--color-spark);
}

.benefit-card h3 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--color-chrome);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.benefit-card p {
    color: var(--color-metal);
    line-height: 1.7;
}

/* ===================================
   GALLERY SECTION
   =================================== */

.gallery {
    background: var(--color-iron);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.gallery-item {
    aspect-ratio: 4/3;
    background: var(--color-zinc);
    border: 2px solid transparent;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
}
.gallery-item img {
    transition: all 0.3s ease;
}
.gallery-item:hover {
    border-color: var(--color-spark);
}
.gallery-item:hover img {
    transform: scale(1.02);
}

.gallery-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--color-zinc) 0%, var(--color-steel) 100%);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.gallery-placeholder p {
    color: var(--color-chrome);
    font-weight: 600;
    line-height: 1.5;
}

.gallery-note {
    background: var(--color-zinc);
    border-left: 4px solid var(--color-spark);
    padding: 1.5rem;
    color: var(--color-chrome);
    font-size: 1.05rem;
    line-height: 1.6;
}

.gallery-note strong {
    color: var(--color-spark);
}

/* ===================================
   FAQ SECTION
   =================================== */

.faq {
    background: var(--color-aluminum);
}

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

.faq-item {
    background: var(--color-iron);
    border-left: 3px solid var(--color-spark);
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.faq-item:hover {
    background: var(--color-zinc);
    transform: translateX(8px);
}

.faq-item h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-weld);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.faq-item p {
    color: var(--color-chrome);
    line-height: 1.7;
}

/* ===================================
   CONTACT SECTION
   =================================== */

.contact {
    background: var(--color-iron);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-spark), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 4rem;
}

.contact-info h3,
.contact-form-wrapper h3 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-chrome);
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.contact-intro {
    color: var(--color-metal);
    margin-bottom: 2rem;
    line-height: 1.7;
    font-size: 1.05rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--color-steel);
    border: 2px solid var(--color-zinc);
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

.contact-method:hover {
    border-color: var(--color-spark);
    transform: translateX(8px);
}

.method-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.method-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-metal);
    margin-bottom: 0.25rem;
}

.method-value {
    font-family: var(--font-display);
    font-size: 1.4rem;
    color: var(--color-chrome);
    font-weight: 600;
}

.method-value small {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--color-metal);
    display: block;
    margin-top: 0.25rem;
}

/* Contact Form */
.contact-form {
    background: var(--color-steel);
    border: 2px solid var(--color-zinc);
    padding: 2rem;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--color-chrome);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--color-iron);
    border: 2px solid var(--color-zinc);
    color: var(--color-chrome);
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-spark);
    background: var(--color-steel);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 400;
    text-transform: none;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.form-note {
    text-align: center;
    color: var(--color-metal);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.form-success {
    background: var(--color-steel);
    border: 2px solid var(--color-weld);
    padding: 3rem;
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-weld);
    color: var(--color-steel);
    font-size: 3rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
}

.form-success h4 {
    font-family: var(--font-display);
    font-size: 2rem;
    color: var(--color-chrome);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

.form-success p {
    color: var(--color-metal);
    font-size: 1.05rem;
}

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

.footer {
    background: var(--color-steel);
    border-top: 2px solid var(--color-zinc);
    padding: 3rem 2rem 2rem;
}

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

.brand-icon-large {
    font-size: 4rem;
    color: var(--color-spark);
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--color-metal);
    line-height: 1.6;
}

.footer h4 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-chrome);
    margin-bottom: 1rem;
    text-transform: uppercase;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a,
.footer-contact a {
    color: var(--color-metal);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--color-spark);
}

.footer-contact p {
    color: var(--color-metal);
    line-height: 1.8;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-zinc);
    color: var(--color-metal);
    font-size: 0.9rem;
}

/* ===================================
   BACK TO TOP BUTTON
   =================================== */

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--color-spark);
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-deep);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--color-flame);
    transform: translateY(-4px);
}

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

@media (max-width: 780px) {
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--color-steel);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 1.5rem;
        transition: right 0.3s ease;
        border-left: 2px solid var(--color-zinc);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        width: 100%;
        padding: 0.5rem 0;
    }
    
    .nav-cta {
        width: 100%;
        text-align: center;
    }
    
    .hero {
        padding: 6rem 1rem 3rem;
    }
    
    .hero-cta-group {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .audience-grid,
    .benefits-grid,
    .faq-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: var(--spacing-lg) 1rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }
    
    .nav-brand {
        font-size: 1.4rem;
    }
    
    .service-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

/* ===================================
   ACCESSIBILITY
   =================================== */

/* Focus styles */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-spark);
    outline-offset: 2px;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-spark: #ff8c00;
        --color-weld: #00e5ff;
    }
    
    .btn-primary,
    .nav-cta {
        border: 2px solid white;
    }
}

/* ===================================
   LIGHT THEME OVERRIDES
   =================================== */

:root {
    --bg: #ffffff;
    --panel: #f4f6f8;
    --panel-soft: #eef2f6;
    --color-steel: #ffffff;
    --color-iron: #f7f9fc;
    --color-zinc: #d5dde6;
    --color-metal: #4f5d6d;
    --color-chrome: #13202e;

    --color-spark: #ff8c00;
    --color-heat: #f59e0b;
    --color-weld: #7897aa;

    --shadow-sharp: 3px 3px 0 rgba(17, 36, 56, 0.14);
    --shadow-deep: 0 10px 28px rgba(17, 36, 56, 0.12);
}

body {
    background: #ffffff;
    color: var(--color-chrome);
}

.navbar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid var(--color-zinc);
}

.navbar.scrolled {
    background: #ffffff;
    box-shadow: 0 8px 20px rgba(17, 36, 56, 0.1);
}

.brand-thin,
.nav-link {
    color: var(--color-chrome);
}

.nav-toggle {
    border-color: var(--color-chrome);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    background: var(--color-chrome);
}

.hero {
    background-color: white;
}

.hero-bg {
    background-image: linear-gradient(to top, rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('../assets/hero.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.hero-label {
    background: rgba(179, 32, 32, 0.08);
    color: var(--color-chrome);
}

.btn-secondary {
    color: var(--color-weld);
    border-color: var(--color-weld);
    background: #ffffff;
}

.btn-secondary:hover {
    color: #ffffff;
}

.services,
.why-us,
.gallery,
.contact,
.footer {
    background: #ffffff;
}

.services::before,
.contact::before {
    background: linear-gradient(90deg, transparent, rgba(179, 32, 32, 0.45), transparent);
}

.service-card,
.benefit-card,
.faq-item,
.contact-form,
.contact-method {
    background: #ffffff;
    border-color: var(--color-zinc);
}

.service-content li strong,
.benefit-card h3,
.faq-item h3,
.contact-info h3,
.contact-form-wrapper h3,
.footer h4,
.method-value,
.section-title {
    color: var(--color-chrome);
}

.service-content h4,
.audience-item h4 {
    color: var(--color-flame);
}

.tag {
    background: #f2f5f8;
    color: var(--color-chrome);
    border-color: #c9d3df;
}

.gallery-item {
    background: #ffffff;
}
.gallery-item img {
    inset: 0;
    object-fit: cover;
    width: 100%;
    height: 100%;
}

.gallery-placeholder {
    background: linear-gradient(145deg, #f8fafc 0%, #eef3f8 100%);
}

.gallery-placeholder p,
.gallery-note,
.faq-item p,
.audience-item p,
.contact-intro,
.form-note,
.footer-brand p,
.footer-contact p,
.footer-bottom,
.footer-links a,
.footer-contact a,
.method-label,
.method-value small {
    color: var(--color-metal);
}

.gallery-note {
    background: #f6f9fc;
}

.contact-form {
    border-color: #c9d3df;
}

.form-group input,
.form-group textarea {
    background: #ffffff;
    border-color: #c9d3df;
    color: var(--color-chrome);
}

.form-group input:focus,
.form-group textarea:focus {
    background: #ffffff;
    border-color: var(--color-spark);
}

.form-success {
    background: #f4fbff;
    border-color: #78b8db;
}

.success-icon {
    color: #ffffff;
}

.back-to-top {
    background: var(--color-spark);
    color: #ffffff;
}

@media (max-width: 768px) {
    .nav-menu {
        background: #ffffff;
        border-left: 1px solid var(--color-zinc);
        box-shadow: -8px 0 18px rgba(17, 36, 56, 0.08);
    }
}
/* -------------------- LIGHTBOX -------------------- */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#lightbox-image {
    max-width: 90%;
    max-height: 80%;
    margin: auto;
    display: block;
}

.caption {
    color: #ccc;
    font-size: 1.2em;
    padding: 10px 0;
    text-align: center;
}

.close-btn {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.close-btn:hover,
.close-btn:focus {
    color: #bbb;
    text-decoration: none;
}

.lightbox .prev-slide-btn,
.lightbox .next-slide-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 15px 15px;
    cursor: pointer;
    font-size: 24px;
    z-index: 1001;
    user-select: none;
    border-radius: 4px;
    opacity: 0.8;
}

.lightbox .prev-slide-btn:hover,
.lightbox .next-slide-btn:hover {
    opacity: 1;
}

.lightbox .prev-slide-btn {
    left: 20px;
}

.lightbox .next-slide-btn {
    right: 20px;
}