/* ===================================
   Bitges LED Display Solutions - CSS
   Modern, SEO-Optimized, Bilingual Design
   =================================== */

/* ===================================
   CSS Variables & Reset
   =================================== */
:root {
    /* Color Palette */
    --color-primary: #0EA5E9;
    --color-secondary: #FF6B35;
    --color-dark: #0A1628;
    --color-dark-blue: #0F2744;
    --color-darker: #060D15;
    --color-white: #FFFFFF;
    --color-light-gray: #F8FAFC;
    --color-gray: #94A3B8;
    --color-border: #1E293B;
    --color-success: #10B981;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, #0284C7 100%);
    --gradient-dark: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-blue) 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(10, 22, 40, 0.95) 0%, rgba(15, 39, 68, 0.9) 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 30px rgba(14, 165, 233, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container */
    --container-max-width: 1280px;
    --container-padding: 1.5rem;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-regular);
    line-height: 1.6;
    color: var(--color-white);
    background-color: var(--color-dark);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ===================================
   Container & Layout
   =================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.section-dark {
    background: var(--gradient-dark);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-gray);
    font-weight: var(--font-weight-regular);
}

.section-cta {
    text-align: center;
    margin-top: var(--spacing-2xl);
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    white-space: nowrap;
    text-align: center;
}

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

.btn-primary:hover {
    background: #E55A2B;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-call {
    background: var(--color-success);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-call:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

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

.btn-white:hover {
    background: var(--color-light-gray);
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-block {
    width: 100%;
}

/* ===================================
   Header & Navigation
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid var(--color-border);
}

.header.scrolled {
    box-shadow: var(--shadow-xl);
    background: rgba(10, 22, 40, 0.98);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    gap: 2rem;
}

/* Logo */
.logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 1.5rem;
    font-weight: var(--font-weight-black);
    color: var(--color-white);
    letter-spacing: 0.5px;
}

.logo-sub {
    font-size: 0.75rem;
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--color-gray);
    font-weight: var(--font-weight-medium);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-normal);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-actions .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* Language Switcher */
.language-switcher {
    display: flex;
    background: var(--color-dark-blue);
    border-radius: var(--radius-md);
    padding: 0.25rem;
    gap: 0.25rem;
}

.lang-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.lang-btn.active {
    background: var(--color-primary);
    color: var(--color-white);
}

.lang-btn:hover:not(.active) {
    color: var(--color-white);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 0.375rem;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: 1;
}

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

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: var(--font-weight-black);
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
    font-weight: var(--font-weight-regular);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-size: 0.95rem;
}

.feature-item i {
    color: var(--color-primary);
    font-size: 1.25rem;
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 2rem;
    color: var(--color-white);
    opacity: 0.7;
}

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

/* ===================================
   Products Section
   =================================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--color-dark-blue);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--color-border);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary);
}

.product-image {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 22, 40, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--color-white);
    margin: -30px auto 1rem;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.product-card:hover .product-icon {
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.product-title {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    padding: 0 1.5rem;
}

.product-description {
    padding: 0 1.5rem;
    margin-bottom: var(--spacing-md);
}

.product-description p {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

.product-features {
    padding: 0 1.5rem 1.5rem;
}

.product-features li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0;
    color: var(--color-gray);
    font-size: 0.9rem;
}

.product-features i {
    color: var(--color-primary);
    font-size: 0.875rem;
}

/* ===================================
   Why Choose Us Section
   =================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(10px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--color-white);
    margin: 0 auto 1.5rem;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    transform: rotateY(360deg);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.feature-description p {
    color: var(--color-gray);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===================================
   Projects Section
   =================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    height: 300px;
    cursor: pointer;
    transition: var(--transition-normal);
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.project-card:hover img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.95), transparent);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: var(--transition-normal);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info {
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.project-card:hover .project-info {
    transform: translateY(0);
}

.project-name {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.project-location {
    color: var(--color-primary);
    font-size: 0.95rem;
    font-weight: var(--font-weight-medium);
}

/* ===================================
   About Section
   =================================== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-lg);
}

.about-description p {
    color: var(--color-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.trust-badges {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: var(--spacing-xl);
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.badge-item:hover {
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.badge-item i {
    font-size: 2rem;
    color: var(--color-primary);
}

.badge-item span {
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    font-size: 0.95rem;
}

.about-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

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

.about-stats {
    position: absolute;
    bottom: 2rem;
    left: 2rem;
    right: 2rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: var(--font-weight-black);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray);
    font-weight: var(--font-weight-medium);
}

/* ===================================
   Quote Form Section
   =================================== */
.quote-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.quote-info .section-title {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.quote-description {
    color: var(--color-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.quote-contact {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem;
    background: var(--color-dark-blue);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: var(--transition-fast);
}

.contact-item:hover {
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--color-primary);
    width: 40px;
    text-align: center;
}

.contact-item div {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-item strong {
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    font-size: 0.875rem;
}

.contact-item a,
.contact-item span {
    color: var(--color-gray);
    font-size: 0.95rem;
}

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

/* Quote Form */
.quote-form-container {
    background: var(--color-dark-blue);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    box-shadow: var(--shadow-xl);
}

.quote-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

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

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    font-weight: var(--font-weight-semibold);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.form-group label i {
    color: var(--color-primary);
    font-size: 0.875rem;
}

.required {
    color: var(--color-secondary);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-dark);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-white);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

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

.form-group select {
    cursor: pointer;
}

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

.form-privacy {
    grid-column: 1 / -1;
    display: flex;
    align-items: start;
    gap: 0.75rem;
}

.form-privacy input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 0.25rem;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.form-privacy label {
    color: var(--color-gray);
    font-size: 0.875rem;
    line-height: 1.6;
    cursor: pointer;
}

.form-privacy a {
    color: var(--color-primary);
    text-decoration: underline;
}

.form-message {
    grid-column: 1 / -1;
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: var(--font-weight-semibold);
    display: none;
}

.form-message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    color: var(--color-success);
    display: block;
}

.form-message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #EF4444;
    color: #EF4444;
    display: block;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--color-darker);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--color-gray);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 0.75rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--color-dark-blue);
    border: 1px solid var(--color-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-gray);
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 1.125rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin-bottom: 1.25rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--color-gray);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(5px);
}

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

.footer-contact li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    color: var(--color-gray);
    font-size: 0.95rem;
}

.footer-contact i {
    color: var(--color-primary);
    font-size: 1.125rem;
    width: 20px;
    margin-top: 0.125rem;
}

.footer-contact a {
    color: var(--color-gray);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-bottom p {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer-bottom-links {
    display: flex;
    gap: 1.5rem;
}

.footer-bottom-links a {
    color: var(--color-gray);
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

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

/* ===================================
   Back to Top Button
   =================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.25rem;
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .quote-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .trust-badges {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    /* Navigation */
    .nav {
        position: fixed;
        top: 76px;
        left: 0;
        right: 0;
        background: var(--color-dark);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        box-shadow: var(--shadow-xl);
    }
    
    .nav.active {
        transform: translateX(0);
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }
    
    .nav-link {
        display: block;
        padding: 0.75rem;
        border-radius: var(--radius-md);
        background: var(--color-dark-blue);
    }
    
    .nav-link::after {
        display: none;
    }
    
    .header-actions {
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
    }
    
    .header-actions .btn {
        width: 100%;
        justify-content: center;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Hero */
    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }
    
    .hero-cta .btn {
        width: 100%;
    }
    
    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }
    
    /* Products */
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Projects */
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    /* About */
    .about-stats {
        grid-template-columns: 1fr;
        left: 1rem;
        right: 1rem;
        padding: 1rem;
    }
    
    .trust-badges {
        grid-template-columns: 1fr;
    }
    
    /* Quote Form */
    .quote-form {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .quote-form-container {
        padding: 1.5rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
}

/* ===================================
   AOS Animation Library Override
   =================================== */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(50px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-50px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(50px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .header, .footer, .back-to-top, .scroll-indicator {
        display: none;
    }
}