/* ============================================
   CEDAM INDUSTRIA 4.0 - Main Stylesheet
   (c)2025 - C. Lattanzio of Cedam Srl
   ============================================ */

/* ===== Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --gradient-accent: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-dark: #0f172a;
    
    --border-color: #e2e8f0;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    
    --shadow-sm: 0 1px 2px 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);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    line-height: 1.3;
}

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

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

/* ===== Utilities ===== */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-padding {
    padding: 100px 0;
}

/* ===== Navbar ===== */
#mainNav {
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent;
}

#mainNav.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    box-shadow: var(--shadow-lg);
}

.navbar-logo {
    height: 45px;
    width: auto;
    border-radius: 8px;
}

.brand-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.25rem;
}

.navbar-nav .nav-link {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
    padding: 0.5rem 1rem;
    margin: 0 0.25rem;
    border-radius: 8px;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: #fff;
    background: rgba(255,255,255,0.1);
}

/* ===== Hero Section ===== */
.hero-section {
    min-height: 100vh;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1.25rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-subtitle strong {
    color: #fff;
}

.hero-buttons .btn {
    padding: 0.875rem 2rem;
    font-weight: 600;
    border-radius: 50px;
    transition: var(--transition);
}

.hero-buttons .btn-primary {
    background: var(--gradient-primary);
    border: none;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.4);
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
}

.hero-buttons .btn-outline-light:hover {
    background: rgba(255,255,255,0.1);
    transform: translateY(-3px);
}

/* Hero Stats */
.hero-stats {
    display: flex;
    gap: 3rem;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
    margin-top: 0.5rem;
}

/* Hero Illustration */
.hero-illustration {
    position: relative;
    width: 100%;
    height: 500px;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 12px;
    color: #fff;
    font-weight: 500;
    animation: float 6s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--accent);
}

.floating-card.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 20%;
    right: 5%;
    animation-delay: 1s;
}

.floating-card.card-3 {
    bottom: 30%;
    left: 5%;
    animation-delay: 2s;
}

.floating-card.card-4 {
    bottom: 15%;
    right: 15%;
    animation-delay: 3s;
}

.central-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.4);
}

.central-icon i {
    font-size: 3rem;
    color: #fff;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator a {
    color: rgba(255,255,255,0.5);
    font-size: 2rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-15px); }
    60% { transform: translateX(-50%) translateY(-7px); }
}

/* ===== Section Headers ===== */
.section-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.section-badge.light {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Service Cards ===== */
.service-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.service-card.featured {
    border: 2px solid var(--primary);
}

.service-card.featured::before {
    transform: scaleX(1);
}

.service-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.25rem 0.75rem;
    background: var(--gradient-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
}

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 16px;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

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

.service-card:hover .service-icon {
    background: var(--gradient-primary);
}

.service-card:hover .service-icon i {
    color: #fff;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.service-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

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

.service-features li i {
    color: var(--success);
}

/* ===== Process Timeline ===== */
.process-step {
    text-align: center;
    padding: 2rem;
    position: relative;
}

.step-number {
    position: absolute;
    top: 0;
    right: 1rem;
    font-size: 4rem;
    font-weight: 800;
    color: rgba(37, 99, 235, 0.1);
    line-height: 1;
}

.step-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 20px;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.step-icon i {
    font-size: 2rem;
    color: #fff;
}

.process-step h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.process-step p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Architecture Schema ===== */
.schema-container {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.schema-layer {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.schema-layer.machines {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(249, 115, 22, 0.1) 100%);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.schema-layer.middleware {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(124, 58, 237, 0.1) 100%);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.schema-layer.applications {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.schema-layer h5 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.schema-items {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.schema-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--bg-white);
    border-radius: var(--border-radius);
    min-width: 100px;
    box-shadow: var(--shadow-sm);
}

.schema-item i {
    font-size: 1.5rem;
    color: var(--primary);
}

.schema-item span {
    font-size: 0.85rem;
    font-weight: 500;
}

.schema-connector {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1rem 0;
}

.connector-line {
    width: 3px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.connector-protocols {
    display: flex;
    gap: 1rem;
    margin-top: 0.5rem;
}

.connector-protocols span {
    padding: 0.25rem 0.75rem;
    background: var(--bg-light);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* ===== Projects Section ===== */
.project-showcase {
    padding: 3rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--border-radius-lg);
}

.project-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: rgba(37, 99, 235, 0.2);
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 50px;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 2rem;
    color: #fff;
    margin-bottom: 0.5rem;
}

.project-subtitle {
    font-size: 1.125rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.project-description {
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
}

.project-features {
    display: grid;
    gap: 1rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-item i {
    font-size: 1.25rem;
    color: var(--success);
    margin-top: 0.25rem;
}

.feature-item strong {
    display: block;
    color: #fff;
    margin-bottom: 0.25rem;
}

.feature-item span {
    font-size: 0.875rem;
    color: rgba(255,255,255,0.6);
}

/* Project Gallery */
.project-gallery {
    position: relative;
}

.gallery-main {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
}

.gallery-main img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-main:hover img {
    transform: scale(1.05);
}

.gallery-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.gallery-thumbnails {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 1rem;
}

.gallery-thumbnails img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    opacity: 0.7;
}

.gallery-thumbnails img:hover {
    opacity: 1;
    transform: translateY(-5px);
}

/* Project Divider */
.project-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.divider-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.divider-icon {
    color: var(--accent);
    font-size: 1.5rem;
}

/* ===== Technology Cards ===== */
.tech-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    height: 100%;
    transition: var(--transition);
}

.tech-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.tech-category {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--primary);
}

.tech-items {
    display: grid;
    gap: 0.75rem;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--bg-light);
    border-radius: 8px;
    transition: var(--transition);
}

.tech-item:hover {
    background: var(--gradient-primary);
    color: #fff;
}

.tech-item:hover i {
    color: #fff;
}

.tech-item i {
    font-size: 1.25rem;
    color: var(--primary);
    width: 30px;
}

.tech-item span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* Supported Machines */
.machines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}

.machine-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.machine-brand:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.machine-brand i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.machine-brand strong {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.machine-brand span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Contact Section ===== */
.contact-card {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    height: 100%;
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
}

.contact-icon i {
    font-size: 1.75rem;
    color: #fff;
}

.contact-card h4 {
    margin-bottom: 1rem;
}

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

.contact-card a:hover {
    text-decoration: underline;
}

.contact-form-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.contact-form-card .form-control {
    padding: 0.875rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-form-card .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form-card .btn-primary {
    background: var(--gradient-primary);
    border: none;
    padding: 1rem;
    font-weight: 600;
    border-radius: 10px;
    transition: var(--transition);
}

.contact-form-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: rgba(255,255,255,0.7);
    padding: 4rem 0 2rem;
}

.footer-logo {
    height: 50px;
    border-radius: 8px;
}

.footer h5 {
    color: #fff;
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
}

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

.footer-contact {
    list-style: none;
    padding: 0;
}

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

.footer-contact i {
    color: var(--accent);
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: #fff;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
}

.footer-bottom {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: rgba(255,255,255,0.6);
}

.footer-bottom a:hover {
    color: #fff;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: 50%;
    font-size: 1.25rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-5px);
    color: #fff;
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
    .hero-stats {
        flex-wrap: wrap;
        gap: 2rem;
    }
    
    .stat-item {
        flex: 1 1 100px;
    }
    
    .project-showcase {
        padding: 2rem;
    }
    
    .schema-container {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .section-padding {
        padding: 60px 0;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .floating-card {
        display: none;
    }
    
    .schema-items {
        gap: 0.75rem;
    }
    
    .schema-item {
        min-width: 80px;
        padding: 0.75rem;
    }
    
    .machines-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    50% {
        box-shadow: 0 0 0 20px rgba(37, 99, 235, 0);
    }
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== reCAPTCHA Badge ===== */
.grecaptcha-badge {
    visibility: visible !important;
    opacity: 1 !important;
    z-index: 9999 !important;
}