/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0066CC;
    --primary-dark: #004C99;
    --primary-light: #E8F2FF;
    --accent: #00AAFF;
    --accent-gradient: linear-gradient(135deg, #0066CC 0%, #00AAFF 100%);
    --dark: #0F1A2E;
    --dark-soft: #1B2A45;
    --gray-900: #1a1a2e;
    --gray-800: #2d2d44;
    --gray-700: #4a4a5a;
    --gray-600: #6b6b7b;
    --gray-500: #8b8b9b;
    --gray-400: #ababbb;
    --gray-300: #d1d1db;
    --gray-200: #e8e8ee;
    --gray-100: #f4f4f8;
    --gray-50: #fafafc;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--white);
    box-shadow: 0 4px 16px rgba(0, 102, 204, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 1.5px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-outline-light {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 17px;
}

.btn-full {
    width: 100%;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1100;
    padding: 16px 0;
    transition: all var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: 10px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 20px;
    color: var(--white);
    transition: color var(--transition);
}

.navbar.scrolled .nav-logo {
    color: var(--dark);
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: height var(--transition);
}

.navbar.scrolled .logo-img {
    height: 34px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.navbar.scrolled .nav-link {
    color: var(--gray-600);
}

.navbar.scrolled .nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-link--cta {
    background: var(--accent-gradient);
    color: var(--white) !important;
    padding: 8px 20px;
}

.nav-link--cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    background: var(--accent-gradient) !important;
    color: var(--white) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    position: relative;
    z-index: 1102;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--dark);
}

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

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

.hero-placeholder-bg {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a1628 0%, #0d2847 30%, #0f3460 60%, #0a1628 100%);
    position: relative;
}

.hero-placeholder-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0, 102, 204, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 170, 255, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(0, 102, 204, 0.08) 0%, transparent 50%);
}

.hero-placeholder-bg::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 170, 255, 0.06) 0%, transparent 70%);
    animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-40px, 40px) scale(1.1); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.4) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 120px 0 80px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    background: rgba(0, 170, 255, 0.15);
    border: 1px solid rgba(0, 170, 255, 0.3);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
    backdrop-filter: blur(8px);
}

.hero-title {
    font-size: clamp(36px, 5.5vw, 64px);
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-highlight {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 19px);
    color: rgba(255, 255, 255, 0.75);
    max-width: 560px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

.hero-stat-number {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
}

.hero-stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 500;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.15);
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: scrollBounce 2s ease-in-out infinite;
}

.hero-scroll a {
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

.hero-scroll a:hover {
    color: var(--white);
}

@keyframes scrollBounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(8px); }
}

/* ===== SECTIONS ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 4px 14px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 800;
    color: var(--dark);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-title--left {
    text-align: left;
}

.section-desc {
    font-size: 17px;
    color: var(--gray-500);
    line-height: 1.7;
}

/* ===== SERVICES ===== */
.services {
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition);
}

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

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

.service-card--featured {
    background: linear-gradient(135deg, #f0f7ff 0%, #e8f2ff 100%);
    border-color: rgba(0, 102, 204, 0.15);
}

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

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--accent-gradient);
    color: var(--white);
    font-size: 11px;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--primary);
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--accent-gradient);
    color: var(--white);
    transform: scale(1.05);
}

.service-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.service-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.65;
}

/* ===== BRANDS ===== */
.brands-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.brand-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

.brand-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.brand-logo-wrap {
    width: 100%;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.brand-logo-img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(40%) opacity(0.8);
    transition: all var(--transition);
}

.brand-card:hover .brand-logo-img {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.05);
}

.brand-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.brand-desc {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.6;
}

/* ===== WHY US ===== */
.why-us {
    background: var(--gray-50);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}

.why-us-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
}

.why-us-feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.feature-check {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.why-us-feature strong {
    display: block;
    font-size: 15px;
    color: var(--dark);
    margin-bottom: 2px;
}

.why-us-feature p {
    font-size: 14px;
    color: var(--gray-500);
}

/* ===== MAINTENANCE ===== */
.maintenance-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.maintenance-benefits h3,
.maintenance-includes h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 24px;
}

.benefit-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.benefit-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 20px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: all var(--transition);
}

.benefit-item:hover {
    background: var(--primary-light);
}

.benefit-icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-item strong {
    display: block;
    font-size: 15px;
    color: var(--dark);
    margin-bottom: 4px;
}

.benefit-item p {
    font-size: 14px;
    color: var(--gray-500);
}

.includes-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.includes-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--gray-700);
    line-height: 1.5;
}

.includes-list li svg {
    flex-shrink: 0;
    color: var(--success);
    margin-top: 2px;
}

.maintenance-note {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: #FFF7ED;
    border: 1px solid #FED7AA;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    align-items: flex-start;
}

.maintenance-note svg {
    flex-shrink: 0;
    color: var(--warning);
    margin-top: 2px;
}

.maintenance-note p {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.5;
}

.maintenance-frequency {
    display: flex;
    gap: 16px;
}

.freq-item {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
}

.freq-number {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.freq-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--dark);
    line-height: 1.4;
}

.freq-label small {
    font-weight: 400;
    color: var(--gray-500);
}

/* ===== CTA BANNER ===== */
.cta-banner {
    background: var(--accent-gradient);
    padding: 60px 0;
}

.cta-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.cta-text h2 {
    font-size: clamp(24px, 3vw, 32px);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 8px;
}

.cta-text p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

.cta-actions {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

.cta-banner .btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}

.cta-banner .btn-primary:hover {
    box-shadow: var(--shadow-lg);
}

/* ===== CONTACT ===== */
.contact {
    background: var(--gray-50);
}

.contact-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 960px;
    margin: 0 auto 32px;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 28px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
    transition: all var(--transition);
    text-decoration: none;
}

.contact-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.contact-btn-icon {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition);
}

.contact-btn:hover .contact-btn-icon {
    transform: scale(1.1);
}

.contact-btn--phone .contact-btn-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.contact-btn--email .contact-btn-icon {
    background: var(--primary-light);
    color: var(--primary);
}

.contact-btn--facebook .contact-btn-icon {
    background: #E8F0FE;
    color: #1877F2;
}

.contact-btn-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.contact-btn-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-btn-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
}

.contact-address-line {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--gray-500);
    font-size: 15px;
    font-weight: 500;
}

.contact-address-line svg {
    color: var(--primary);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer .nav-logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.7;
    max-width: 340px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    transition: color var(--transition);
}

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

.footer-bottom {
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.35);
}

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ===== ANIMATIONS ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* ===== FORM SUCCESS ===== */
.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.form-success h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-success p {
    font-size: 15px;
    color: var(--gray-500);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .maintenance-layout {
        grid-template-columns: 1fr;
    }

    .cta-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-buttons {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

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

@media (max-width: 768px) {
    .section {
        padding: 72px 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        gap: 8px;
        box-shadow: var(--shadow-xl);
        transition: right var(--transition);
        z-index: 1101;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        color: var(--gray-700);
        font-size: 16px;
        padding: 12px 16px;
        width: 100%;
    }

    .nav-menu .nav-link:hover {
        color: var(--primary);
        background: var(--primary-light);
    }

    .nav-menu .nav-link--cta {
        color: var(--white) !important;
        text-align: center;
        margin-top: 8px;
    }

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

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

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

    .nav-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1099;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

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

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

    .brands-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 20px;
    }

    .hero-stat-number {
        font-size: 24px;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-actions .btn {
        width: 100%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .maintenance-frequency {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-content {
        padding: 100px 16px 60px;
    }

    .hero-cta {
        flex-direction: column;
        padding: 0 4px;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .hero-stats {
        justify-content: center;
        padding: 0 4px;
    }

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

    .contact-form-wrapper {
        padding: 24px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
    }
}