/* =========================================
   VINFUR.IN DESIGN SYSTEM
   Premium Dark Mode, Glassmorphism, Modern
   ========================================= */

:root {
    /* Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --accent-primary: #6366f1; /* Indigo */
    --accent-secondary: #8b5cf6; /* Violet */
    --accent-glow: rgba(99, 102, 241, 0.5);
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

/* =========================================
   UTILITIES
   ========================================= */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(to right, #fff, #a0a0b0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* =========================================
   NAVIGATION
   ========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 1000;
    transition: all var(--transition-medium);
}

.navbar.scrolled, .navbar.solid {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.nav-links a:not(.btn) {
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-links a:not(.btn):hover, .nav-links a.active {
    color: var(--text-primary);
}

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 5rem;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.hero .subtitle {
    font-size: 1.1rem;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

.hero .title {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero .title span {
    background: linear-gradient(135deg, #a855f7, #6366f1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero .description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* Abstract Background Glows */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 10s ease-in-out infinite alternate;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: rgba(99, 102, 241, 0.3);
}

.glow-2 {
    bottom: -10%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: rgba(139, 92, 246, 0.2);
    animation-delay: -5s;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(30px, 50px); }
}

/* =========================================
   PRODUCTS SECTION
   ========================================= */
.products-section {
    position: relative;
    z-index: 5;
}

.product-card {
    background: var(--bg-secondary);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    overflow: hidden;
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(99, 102, 241, 0.1);
    border-color: rgba(255, 255, 255, 0.15);
}

.product-card.featured {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1000px;
    margin: 0 auto;
}

.product-image-container {
    position: relative;
    width: 100%;
    height: 100%;
    min-height: 300px;
    background: #1a1a24;
    overflow: hidden;
}

.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(45deg, #161622, #1e1e2d);
    color: var(--text-secondary);
}

.lazy-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.lazy-image.loaded {
    opacity: 1;
}

.product-details {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.product-details h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

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

.feature-list {
    margin-bottom: 2rem;
}

.feature-list li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.feature-list i {
    color: #10b981;
    margin-right: 0.5rem;
    font-weight: bold;
}

.product-btn {
    align-self: flex-start;
}

/* Minor Products */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.product-card.minor {
    display: flex;
    flex-direction: column;
}

.product-image-container.small {
    min-height: 200px;
}

.product-card.minor .product-details {
    padding: 2rem;
}

.product-card.minor h3 {
    font-size: 1.4rem;
}

.status-badge {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    align-self: flex-start;
    margin-top: 1rem;
}

.status-badge.coming-soon {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}


/* =========================================
   ABOUT SECTION
   ========================================= */
.about-section {
    background: var(--bg-secondary);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-text h2 span {
    color: var(--accent-primary);
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
}

.stat-label {
    color: var(--accent-primary);
    font-weight: 600;
}

/* Abstract Graphic for About */
.abstract-graphic {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circle {
    position: absolute;
    border-radius: 50%;
    border: 2px solid var(--glass-border);
    animation: spin 20s linear infinite;
}

.circle.c1 { width: 300px; height: 300px; border-top-color: var(--accent-primary); }
.circle.c2 { width: 200px; height: 200px; border-bottom-color: var(--accent-secondary); animation-direction: reverse; animation-duration: 15s; }
.circle.c3 { width: 100px; height: 100px; background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary)); animation: none; box-shadow: 0 0 30px var(--accent-glow); }

@keyframes spin { 100% { transform: rotate(360deg); } }

/* =========================================
   CTA SECTION
   ========================================= */
.cta-section {
    position: relative;
}

.cta-container {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 24px;
    padding: 5rem 2rem;
    text-align: center;
}

.cta-container h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-container p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.lead-capture-form {
    max-width: 500px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
}

.lead-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 1rem 1.5rem;
    color: white;
    font-family: var(--font-primary);
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-fast);
}

.lead-input:focus {
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.08);
}

.lead-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.cta-subtext {
    font-size: 0.85rem !important;
    margin-top: 1rem;
    color: rgba(255, 255, 255, 0.5) !important;
    margin-bottom: 0 !important;
}

/* =========================================
   CONTACT PAGE SPECIFICS
   ========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.info-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 20px;
}

.info-card h3 { margin-bottom: 1rem; }
.info-card p { color: var(--text-secondary); margin-bottom: 2rem; }

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    gap: 1rem;
}

.contact-form-container {
    background: var(--bg-secondary);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    font-family: var(--font-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.08);
}

.btn-submit { width: 100%; border-radius: 8px; }

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.alert-success { background: rgba(16, 185, 129, 0.1); border: 1px solid #10b981; color: #10b981; }
.alert-error { background: rgba(239, 68, 68, 0.1); border: 1px solid #ef4444; color: #ef4444; }


/* =========================================
   FOOTER
   ========================================= */
.footer {
    background: #050508;
    padding: 4rem 0 2rem;
    border-top: 1px solid #1a1a24;
}

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

.footer-brand h3 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}
.footer-brand h3 span { color: var(--accent-primary); }
.footer-brand p { color: var(--text-secondary); }

.footer h4 { margin-bottom: 1.5rem; }
.footer ul li { margin-bottom: 0.8rem; }
.footer ul a { color: var(--text-secondary); }
.footer ul a:hover { color: white; }

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #1a1a24;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* =========================================
   ANIMATIONS (Intersection Observer classes)
   ========================================= */
.fade-up { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in { opacity: 0; transition: opacity 1s ease; }
.fade-in.visible { opacity: 1; }

.fade-right { opacity: 0; transform: translateX(-40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-right.visible { opacity: 1; transform: translateX(0); }

.fade-left { opacity: 0; transform: translateX(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.fade-left.visible { opacity: 1; transform: translateX(0); }

/* =========================================
   RESPONSIVE DESIGN
   ========================================= */
@media (max-width: 900px) {
    .product-card.featured, .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .hero .title { font-size: 3.5rem; }
    .nav-links { display: none; /* simple mobile menu fallback needed in real app */ }
}

@media (max-width: 600px) {
    .hero .title { font-size: 2.5rem; }
    .hero-actions { flex-direction: column; }
    .section { padding: 4rem 0; }
    .product-details { padding: 1.5rem; }
    .input-group { 
        flex-direction: column;
    }
    .lead-input {
        width: 100%;
    }
}