/* ==========================================================================
   VISIGN DIGITAL SIGNAGE - PREMIUM STYLE SHEET
   ========================================================================== */

/* --- Design Tokens --- */
:root {
    --primary-color: #0088FF;
    --primary-hover: #006ecf;
    --primary-rgb: 0, 136, 255;
    
    --bg-dark-1: #0f172a;
    --bg-dark-2: #1e293b;
    --bg-dark-3: #0b0f19;
    
    --bg-light-1: #ffffff;
    --bg-light-2: #f8fafc;
    --bg-light-3: #f1f5f9;
    
    --text-dark-primary: #0f172a;
    --text-dark-secondary: #475569;
    --text-dark-muted: #64748b;
    
    --text-light-primary: #ffffff;
    --text-light-secondary: #cbd5e1;
    --text-light-muted: #94a3b8;
    
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 15px rgba(0, 136, 255, 0.4);
    
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-light-1);
    color: var(--text-dark-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
}

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

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

/* --- Typography Helpers --- */
.text-gradient {
    background: linear-gradient(135deg, #ffffff 30%, var(--primary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-gradient-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #00d2ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* --- Custom Components & Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 2rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-normal);
    border: 2px solid transparent;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

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

.btn-outline-white:hover {
    background-color: white;
    color: var(--bg-dark-1);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.1);
}

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

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

/* --- Layout Container --- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Section Styling --- */
section {
    padding: 7rem 0;
    position: relative;
}

.section-dark {
    background-color: var(--bg-dark-1);
    color: var(--text-light-primary);
}

.section-dark-alt {
    background-color: var(--bg-dark-3);
    color: var(--text-light-primary);
}

.section-light-alt {
    background-color: var(--bg-light-2);
}

.section-header {
    margin-bottom: 4rem;
    text-align: center;
}

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

.section-tag {
    color: var(--primary-color);
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    display: inline-block;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.5rem;
    color: inherit;
    margin-bottom: 1rem;
}

.section-subtitle {
    color: var(--text-dark-secondary);
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
}

.section-dark .section-subtitle {
    color: var(--text-light-secondary);
}

/* --- Header / Navigation --- */
header.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-normal);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

header.main-header.scrolled {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    transition: var(--transition-normal);
}

header.main-header.scrolled .nav-container {
    height: 70px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: white;
    letter-spacing: 1px;
}

.logo-text span {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

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

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--primary-color);
    transform: scale(1.1);
}

.btn-inquiry {
    padding: 0.6rem 1.4rem;
    font-size: 0.85rem;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: white;
    transition: var(--transition-normal);
}

/* --- Hero Section --- */
.hero-section {
    min-height: 100vh;
    padding-top: 120px;
    padding-bottom: 5rem;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #090e1a 0%, #152035 100%);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    z-index: 2;
}

.hero-tag {
    background-color: rgba(0, 136, 255, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(0, 136, 255, 0.2);
    padding: 0.4rem 1rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--text-light-secondary);
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.hero-image-wrapper {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-slider {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl), 0 0 50px rgba(0, 136, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-slow);
    width: 100%;
    aspect-ratio: 1 / 1;
}

.hero-slider:hover {
    transform: translateY(-5px) rotate(1deg);
    box-shadow: var(--shadow-xl), 0 0 70px rgba(0, 136, 255, 0.25);
}

.hero-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    z-index: 2;
}

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

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
}

.slider-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: var(--transition-normal);
}

.slider-dots .dot:hover,
.slider-dots .dot.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

.hero-glow-blob {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(0, 136, 255, 0.2) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    pointer-events: none;
    filter: blur(40px);
}

/* --- VISIGN Advantage Section --- */
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.advantage-card {
    background-color: white;
    padding: 3rem 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--bg-light-3);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 136, 255, 0.08);
    border-color: rgba(0, 136, 255, 0.15);
}

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-icon-box {
    width: 80px;
    height: 80px;
    background-color: rgba(0, 136, 255, 0.05);
    color: var(--primary-color);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    transition: var(--transition-normal);
}

.advantage-icon-box svg {
    width: 36px;
    height: 36px;
    stroke-width: 2.25px;
}

.advantage-card:hover .advantage-icon-box {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.1) rotate(5deg);
}

.advantage-card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-dark-primary);
}

.advantage-card-desc {
    color: var(--text-dark-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* --- Banner Section (Manufacturer) --- */
.banner-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, #131d31 0%, #0d1421 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 3rem;
}

.banner-text h3 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.banner-text p {
    color: var(--text-light-secondary);
    font-size: 1.1rem;
}

/* --- Products Section (Innovative Solutions) --- */
.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.product-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    border: 1px solid #e2e8f0;
    overflow: hidden;
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.product-image-container {
    width: 100%;
    height: 280px;
    background-color: var(--bg-light-2);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid #f1f5f9;
}

.product-card:hover .product-image-container img {
    transform: scale(1.06);
}

.product-image-container img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
    transition: var(--transition-normal);
}

.product-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark-primary);
}

.product-category {
    font-size: 0.8rem;
    color: var(--primary-color);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    margin-top: auto;
}

/* --- Vector Icons for placeholders when images fail/missing --- */
.svg-product-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* --- Applications Section --- */
.app-header-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 4rem;
}

.app-header-row .section-header {
    margin-bottom: 0;
    text-align: left;
}

.view-all-link {
    color: var(--primary-color);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding-bottom: 0.25rem;
    border-bottom: 2px solid transparent;
}

.view-all-link:hover {
    color: var(--primary-hover);
    border-bottom-color: var(--primary-hover);
    gap: 0.75rem;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.app-card {
    background-color: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--bg-light-3);
    transition: var(--transition-normal);
}

.app-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(0, 136, 255, 0.1);
}

.app-img-box {
    width: 100%;
    height: 240px;
    overflow: hidden;
    position: relative;
}

.app-card:hover .app-img-box img {
    transform: scale(1.08);
}

.app-img-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.app-info-box {
    padding: 2rem;
}

.app-meta {
    font-size: 0.75rem;
    color: var(--text-dark-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 0.75rem;
    display: block;
}

.app-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark-primary);
}

.app-desc {
    color: var(--text-dark-secondary);
    font-size: 0.95rem;
}

/* --- About Section (With Statistics Grid) --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat-card {
    background-color: var(--bg-dark-2);
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition-normal);
}

.stat-card:hover {
    background-color: rgba(0, 136, 255, 0.05);
    border-color: rgba(0, 136, 255, 0.2);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 0.5rem;
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-light-secondary);
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

/* --- Support Department / Contact Info Banner --- */
.support-section {
    padding: 4rem 0;
    background-color: var(--bg-light-2);
    border-top: 1px solid var(--bg-light-3);
    border-bottom: 1px solid var(--bg-light-3);
}

.support-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.support-card {
    background-color: white;
    padding: 2.5rem;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--bg-light-3);
    transition: var(--transition-normal);
}

.support-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border-color: rgba(0, 136, 255, 0.1);
}

.support-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(0, 136, 255, 0.05);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.support-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.support-info p {
    color: var(--text-dark-secondary);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.support-link {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.85rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.support-link:hover {
    color: var(--primary-hover);
    gap: 0.75rem;
}

/* --- Footer --- */
footer.main-footer {
    background-color: var(--bg-dark-3);
    color: var(--text-light-secondary);
    padding-top: 5rem;
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.9fr 0.9fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo-text {
    margin-bottom: 1.5rem;
}

.footer-brand-desc {
    color: var(--text-light-muted);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 36px;
    height: 36px;
    background-color: var(--bg-dark-2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--transition-fast);
}

.social-icon:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.footer-col-title {
    color: white;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    margin-bottom: 1.75rem;
    font-weight: 600;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: var(--text-light-muted);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem 0;
    text-align: center;
    color: var(--text-light-muted);
    font-size: 0.8rem;
}

.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom-links {
    display: flex;
    gap: 2rem;
}

.footer-bottom-links a:hover {
    color: white;
}

/* --- Scroll Entrance Animations --- */
.fade-up-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.fade-up-element.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Delay modifiers */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }

/* --- Responsive Adjustments --- */
@media (max-width: 1200px) {
    .advantage-grid, .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
}

@media (max-width: 992px) {
    section {
        padding: 5rem 0;
    }
    
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
        padding-top: 4rem;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .banner-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }
    
    .app-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .support-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-actions .btn-inquiry {
        display: none;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .footer-bottom-flex {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    /* Mobile Menu Active States */
    .nav-menu.mobile-active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-dark-1);
        padding: 2rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        gap: 1.5rem;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .advantage-grid, .products-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

/* Floating Call Button for Mobile */
.mobile-floating-call {
    display: none;
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: white;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 136, 255, 0.4), var(--shadow-glow);
    z-index: 999;
    transition: var(--transition-normal);
}

.mobile-floating-call svg {
    width: 24px;
    height: 24px;
}

.mobile-floating-call:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 136, 255, 0.6);
}

@media (max-width: 768px) {
    .mobile-floating-call {
        display: flex;
    }
}