/* ===================================
   Jiffy Car Wash - Classic & Elegant
   Terracotta + Sand Color Palette
   =================================== */

/* CSS Custom Properties */
:root {
    --color-terracotta: #C06C44;
    --color-terracotta-dark: #A05535;
    --color-terracotta-light: #D4896A;
    --color-sand: #E8D5C4;
    --color-sand-light: #F5EDE5;
    --color-sand-dark: #C4A882;
    --color-cream: #FAF6F2;
    --color-charcoal: #2C2C2C;
    --color-text: #3D3D3D;
    --color-text-light: #6B6B6B;
    --color-white: #FFFFFF;
    --color-overlay: rgba(44, 44, 44, 0.55);
    
    --font-heading: 'Raleway', serif;
    --font-body: 'Lato', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --border-radius: 4px;
    --transition: all 0.3s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-cream);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-charcoal);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
    padding: var(--spacing-sm) 0;
}

.header.scrolled {
    background: rgba(250, 246, 242, 0.97);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: var(--spacing-xs) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-white);
    font-weight: 600;
    letter-spacing: 0.02em;
}

.header.scrolled .logo {
    color: var(--color-charcoal);
}

.logo-icon {
    color: var(--color-terracotta);
}

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--color-white);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    position: relative;
    padding: var(--spacing-xs) 0;
}

.header.scrolled .nav-link {
    color: var(--color-text);
}

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

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

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

.btn-nav {
    background: var(--color-terracotta);
    color: var(--color-white) !important;
    padding: 0.6rem 1.5rem;
    border-radius: var(--border-radius);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
}

.btn-nav:hover {
    background: var(--color-terracotta-dark);
    color: var(--color-white) !important;
}

.btn-nav::after {
    display: none;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    z-index: 1001;
}

.hamburger {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition);
    display: block;
}

.header.scrolled .hamburger {
    background: var(--color-charcoal);
}

.nav-toggle.active .hamburger:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active .hamburger:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active .hamburger:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===================================
   HERO SECTION
   =================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -2;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        rgba(44, 44, 44, 0.4) 0%,
        rgba(44, 44, 44, 0.6) 100%
    );
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    padding: 0 var(--spacing-md);
    animation: fadeInUp 1s ease forwards;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-weight: 300;
    letter-spacing: 0.02em;
    line-height: 1.1;
}

.hero-title-accent {
    display: block;
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 0.5em;
    color: var(--color-terracotta-light);
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}

.hero-trust {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.trust-divider {
    color: var(--color-terracotta-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--color-terracotta);
    color: var(--color-white);
    border-color: var(--color-terracotta);
}

.btn-primary:hover {
    background: var(--color-terracotta-dark);
    border-color: var(--color-terracotta-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(192, 108, 68, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-charcoal);
    transform: translateY(-2px);
}

.btn-outline-light {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn-outline-light:hover {
    background: var(--color-white);
    color: var(--color-charcoal);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    animation: bounce 2s infinite;
}

.hero-scroll svg {
    color: var(--color-terracotta-light);
}

/* ===================================
   SECTION STYLES
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-terracotta);
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding: 0 var(--spacing-sm);
}

.section-tag::before,
.section-tag::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 30px;
    height: 1px;
    background: var(--color-sand-dark);
}

.section-tag::before {
    left: -20px;
}

.section-tag::after {
    right: -20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--spacing-sm);
    color: var(--color-charcoal);
}

.section-desc {
    font-size: 1.1rem;
    color: var(--color-text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===================================
   SERVICES SECTION
   =================================== */
.services {
    padding: var(--spacing-xl) 0;
    background: var(--color-cream);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.service-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--color-sand);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-sand-light) 0%, var(--color-sand) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-terracotta);
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--color-terracotta);
    color: var(--color-white);
}

.service-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-charcoal);
}

.service-desc {
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===================================
   ABOUT SECTION
   =================================== */
.about {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-image-wrapper {
    position: relative;
}

.about-image-main {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
}

.about-image-main img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.about-image-main:hover img {
    transform: scale(1.03);
}

.about-image-accent {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 250px;
    height: 250px;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 5px solid var(--color-white);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.about-image-accent img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-badge {
    position: absolute;
    top: -20px;
    left: -20px;
    background: var(--color-terracotta);
    color: var(--color-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: 0 10px 30px rgba(192, 108, 68, 0.3);
}

.badge-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
}

.badge-text {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-content {
    padding: var(--spacing-md);
}

.about-text {
    color: var(--color-text-light);
    line-height: 1.9;
    margin-bottom: var(--spacing-sm);
    font-size: 1.05rem;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    color: var(--color-charcoal);
}

.feature-icon {
    color: var(--color-terracotta);
    flex-shrink: 0;
}

/* ===================================
   GALLERY SECTION
   =================================== */
.gallery {
    padding: var(--spacing-xl) 0;
    background: var(--color-sand-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 250px);
    gap: var(--spacing-sm);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    cursor: pointer;
}

.gallery-item--large {
    grid-column: span 2;
    grid-row: span 2;
}

.gallery-item--wide {
    grid-column: span 2;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(44, 44, 44, 0.7) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: var(--spacing-sm);
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: 1.1rem;
    letter-spacing: 0.05em;
}

/* ===================================
   CTA SECTION
   =================================== */
.cta-section {
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-terracotta) 0%, var(--color-terracotta-dark) 100%);
}

.cta-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.cta-text {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.15rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.cta-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===================================
   CONTACT SECTION
   =================================== */
.contact {
    padding: var(--spacing-xl) 0;
    background: var(--color-cream);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.contact-info {
    padding: var(--spacing-md);
}

.contact-desc {
    color: var(--color-text-light);
    font-size: 1.05rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--color-sand-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-terracotta);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
    color: var(--color-charcoal);
}

.contact-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-item a {
    color: var(--color-terracotta);
}

.contact-item a:hover {
    color: var(--color-terracotta-dark);
    text-decoration: underline;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-charcoal);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.9rem 1rem;
    border: 1px solid var(--color-sand);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-cream);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-terracotta);
    background: var(--color-white);
    box-shadow: 0 0 0 3px rgba(192, 108, 68, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-light);
}

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

.form-success {
    display: none;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: #e8f5e9;
    border-radius: var(--border-radius);
    color: #2e7d32;
    font-size: 0.95rem;
    margin-top: var(--spacing-sm);
}

.form-success.show {
    display: flex;
}

.form-success svg {
    flex-shrink: 0;
}

/* ===================================
   MAP SECTION
   =================================== */
.map-section {
    height: 400px;
    filter: grayscale(30%);
}

.map-section iframe {
    width: 100%;
    height: 100%;
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background: var(--color-charcoal);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer .logo {
    margin-bottom: var(--spacing-sm);
}

.footer-tagline {
    font-size: 0.95rem;
    line-height: 1.7;
    max-width: 280px;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--color-white);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: var(--spacing-sm);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-links a {
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--color-terracotta-light);
    padding-left: 5px;
}

.footer-contact p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 0.3rem;
}

.footer-contact a {
    color: var(--color-terracotta-light);
}

.footer-contact a:hover {
    color: var(--color-white);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    font-size: 0.85rem;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .about-image-wrapper {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .about-content {
        padding: 0;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 200px);
    }
    
    .gallery-item--large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .gallery-item--wide {
        grid-column: span 1;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-xl: 4rem;
        --spacing-lg: 3rem;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--color-cream);
        padding: 5rem var(--spacing-md) var(--spacing-md);
        transition: right 0.4s ease;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }
    
    .nav.active {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        color: var(--color-charcoal) !important;
        font-size: 1.1rem;
    }
    
    .btn-nav {
        margin-top: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3.5rem);
    }
    
    .hero-trust {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .trust-divider {
        display: none;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding: 0;
    }
    
    .about-image-accent {
        width: 180px;
        height: 180px;
        bottom: -20px;
        right: -10px;
    }
    
    .about-badge {
        top: -15px;
        left: -10px;
        padding: 1rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .gallery-item--large,
    .gallery-item--wide {
        grid-column: span 1;
    }
    
    .gallery-item {
        height: 250px;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-sm);
    }
}

/* Mobile nav overlay */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

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