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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: #f9fafb;
    background: #000000;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
nav {
    position: fixed !important;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    z-index: 99999 !important;
    isolation: isolate;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 20px;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.logo:hover {
    opacity: 0.8;
}

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

.nav-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
    font-size: 0.875rem;
    transition: color 0.3s ease;
    position: relative;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 2px;
    background: white;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 10px;
    margin: -10px;
    position: relative;
    z-index: 10002;
}

.mobile-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background: white;
    transition: all 0.3s ease;
    pointer-events: none;
    border-radius: 2px;
}

.mobile-menu.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Visual Hero Section - Carousel Full Screen */
.hero-visual {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-overlay {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: white;
    font-size: 0.9rem;
    font-weight: 500;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    animation: bounce 2s infinite;
}

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

/* Services Section */
.services {
    padding: 6rem 0;
    background: rgba(249, 250, 251, 0.85);
    backdrop-filter: blur(15px);
}

.services h2 {
    text-align: center;
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--text-dark);
    margin-bottom: 3rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.service-card {
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 1px solid rgba(229, 231, 235, 0.8);
    backdrop-filter: blur(10px);
}

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

.service-icon {
    width: 64px;
    height: 64px;
    background: var(--primary-color);
    color: white;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* Technology Section */
.technology {
    padding: 6rem 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
}

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

.tech-text h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.tech-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.tech-text ul {
    list-style: none;
    padding: 0;
}

.tech-text ul li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-light);
}

.tech-text ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.tech-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-placeholder {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.9), rgba(30, 64, 175, 0.9));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0.9;
    backdrop-filter: blur(10px);
}

/* Content Pages */
.page-header {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, #f9fafb 0%, #e5e7eb 100%);
    text-align: center;
}

.page-header h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: 4rem 0;
    background: transparent;
}

/* Contact Form */
.contact-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

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

/* Login Form */
.login-container {
    max-width: 400px;
    margin: 0 auto;
    padding: 3rem 2rem;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.forgot-password {
    text-align: right;
    margin-top: 0.5rem;
}

.forgot-password a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.forgot-password a:hover {
    text-decoration: underline;
}

/* Projects Page */
.demo-viewer {
    width: 100%;
    height: 80vh;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.demo-info {
    padding: 2rem;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    border-radius: 12px;
    margin-top: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.demo-info h3 {
    font-size: 1.5rem;
    color: white;
    margin-bottom: 1rem;
}

.demo-info p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.controls-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.control-item {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.control-item strong {
    display: block;
    color: #60a5fa;
    margin-bottom: 0.5rem;
}

.control-item {
    color: rgba(255, 255, 255, 0.9);
}

/* Footer */
footer {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(30px);
    color: white;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer .container {
    padding: 0.6rem 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

footer p {
    margin: 0;
    font-size: 0.875rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .nav-links {
        position: absolute !important;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.8);
        display: none;
        z-index: 999999 !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        margin: 0;
        pointer-events: auto;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links li {
        width: 100%;
        list-style: none;
    }

    .nav-links a {
        padding: 1.2rem 1rem;
        text-align: center;
        width: 100%;
        display: block;
        font-size: 1.1rem;
        border-radius: 8px;
        transition: all 0.3s ease;
        text-decoration: none;
        color: rgba(255, 255, 255, 0.9);
    }

    .nav-links a:active {
        background: rgba(96, 165, 250, 0.3);
        transform: scale(0.98);
    }

    .nav-links a.active::after {
        display: none;
    }

    .nav-links a.active {
        background: rgba(96, 165, 250, 0.2);
        color: white;
    }

    .mobile-menu {
        display: flex !important;
        padding: 15px;
        -webkit-tap-highlight-color: rgba(255, 255, 255, 0.2);
        cursor: pointer;
        min-width: 48px;
        min-height: 48px;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
    }

    .mobile-menu span {
        pointer-events: none;
    }

    .mobile-menu:active {
        background: rgba(255, 255, 255, 0.15);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }

    .tech-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .tech-visual {
        order: -1;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .demo-viewer {
        height: 60vh;
    }

}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content h1,
.hero-content p,
.hero-buttons {
    animation: fadeInUp 0.8s ease-out;
}

.hero-content p {
    animation-delay: 0.2s;
}

.hero-buttons {
    animation-delay: 0.4s;
}