:root {
    --bg-dark: #000000;
    --bg-darker: #000000;
    --bg-card: #0a0a0a;
    --text-light: #ffffff;
    --text-muted: #999999;
    --accent-silver: #ffffff;
    --accent-bright: #ffffff;
    --accent-gradient-start: #3b82f6;
    --accent-gradient-end: #8b5cf6;
    --gradient-start: #000000;
    --gradient-end: #000000;
    --border-subtle: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-dark);
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

nav.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
    color: var(--text-light);
    font-size: 1.5rem;
    font-weight: 700;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    height: 40px;
    width: auto;
    transition: filter 0.3s ease;
}

.logo:hover img {
    filter: brightness(1.2);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: white;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: white;
}

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

.menu-toggle span {
    width: 30px;
    height: 3px;
    background: var(--text-light);
    transition: all 0.3s ease;
    border-radius: 3px;
}

.cta-button {
    background: white;
    color: black;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 6rem 2rem 2rem;
}

.hero-content {
    max-width: 1400px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    line-height: 1.1;
    letter-spacing: -0.03em;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.hero-text p {
    font-size: 1.375rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    font-weight: 400;
    animation: fadeInUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.btn-primary, .btn-secondary {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: white;
    font-weight: 600;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.4);
    filter: brightness(1.1);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    color: var(--text-light);
    font-weight: 600;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-visual {
    position: relative;
    animation: fadeIn 1s ease 0.3s backwards;
}

.app-mockup {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.app-mockup img {
    width: 100%;
    height: auto;
    border-radius: 30px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

/* Floating particles */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-silver);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle 15s infinite;
}

/* Features Section */
.features {
    padding: 10rem 2rem;
    background: transparent;
}

.section-title {
    text-align: center;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    text-align: center;
    font-size: 1.375rem;
    color: var(--text-muted);
    margin-bottom: 5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    font-weight: 400;
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 3rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    background: rgba(255, 255, 255, 0.05);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.8;
}

/* Screenshots Gallery */
.gallery {
    padding: 10rem 2rem;
    background: transparent;
}

.gallery-grid {
    max-width: 1400px;
    margin: 5rem auto 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 24px;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-subtle);
}

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

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: filter 0.3s ease;
}

.gallery-item:hover img {
    filter: brightness(1.2);
}

/* Footer */
footer {
    background: transparent;
    border-top: 1px solid var(--border-subtle);
    padding: 4rem 2rem 2rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(192, 192, 192, 0.1);
    color: var(--text-muted);
}

/* Content Pages */
.content-page {
    padding: 8rem 2rem 4rem;
    min-height: 100vh;
}

.content-container {
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 4rem;
    backdrop-filter: blur(10px);
}

.content-container h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.content-container h2 {
    font-size: 2rem;
    margin-top: 3rem;
    margin-bottom: 1.25rem;
    color: var(--text-light);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.content-container h3 {
    font-size: 1.375rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-weight: 600;
}

.content-container p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.content-container ul, .content-container ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
    color: var(--text-muted);
}

.content-container li {
    margin-bottom: 0.5rem;
}

.content-container a {
    color: var(--accent-silver);
    text-decoration: none;
    transition: color 0.3s ease;
}

.content-container a:hover {
    color: var(--accent-bright);
}

.last-updated {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(192, 192, 192, 0.1);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Contact Form */
.contact-form {
    max-width: 700px;
    margin: 3rem auto 0;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: rgba(59, 130, 246, 0.5);
    background: rgba(255, 255, 255, 0.05);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-button {
    background: linear-gradient(135deg, var(--accent-gradient-start), var(--accent-gradient-end));
    color: white;
    padding: 1rem 3rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
    filter: brightness(1.1);
}

.contact-info {
    margin-top: 3rem;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-muted);
}

.contact-info-item:last-child {
    margin-bottom: 0;
}

.contact-info-item strong {
    color: var(--accent-silver);
    min-width: 80px;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes float-particle {
    0% {
        transform: translateY(100vh) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) translateX(100px);
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }
    
    .hero-text h1 {
        font-size: 4rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 100%;
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: 2rem;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        gap: 1.5rem;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hero-text h1 {
        font-size: 3rem;
    }
    
    .hero-text p {
        font-size: 1.125rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .section-subtitle {
        font-size: 1.125rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .content-container {
        padding: 2rem 1.5rem;
    }
    
    .content-container h1 {
        font-size: 2.25rem;
    }
    
    .features {
        padding: 6rem 2rem;
    }
    
    .gallery {
        padding: 6rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2.25rem;
    }
    
    .nav-container {
        padding: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .content-container h1 {
        font-size: 2rem;
    }
    
    .feature-card {
        padding: 2rem;
    }
}

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-darker);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(192, 192, 192, 0.2);
    border-top-color: var(--accent-silver);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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