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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: #2563eb;
    font-weight: 700;
}

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

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: #2563eb;
}

.nav-cta {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: transform 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    color: white !important;
}

/* Language Selector */
.language-selector {
    display: flex;
    gap: 0.5rem;
    margin-left: 1rem;
}

.lang-btn {
    background: transparent;
    border: 2px solid #e2e8f0;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #64748b;
}

.lang-btn:hover {
    border-color: #2563eb;
    color: #2563eb;
    transform: translateY(-1px);
}

.lang-btn.active {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    border-color: transparent;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.hero-feature i {
    color: #fbbf24;
    font-size: 1.2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #667eea;
}

/* App Preview */
.hero-image {
    display: flex;
    justify-content: center;
}

.app-preview {
    perspective: 1000px;
}

.app-window {
    background: white;
    border-radius: 12px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
    overflow: hidden;
    width: 400px;
}

.app-window:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.window-header {
    background: #f5f5f5;
    padding: 12px;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid #ddd;
}

.window-control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.window-control.red { background: #ff5f56; }
.window-control.yellow { background: #ffbd2e; }
.window-control.green { background: #27ca3f; }

.window-content {
    padding: 20px;
    background: #fafafa;
}

.ai-panels {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 15px;
}

.ai-panel {
    background: white;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ai-header {
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
}

.ai-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    position: absolute;
    top: 8px;
    right: 8px;
}

.control-panel {
    display: flex;
    gap: 8px;
    justify-content: center;
}

.parliament-btn {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.parliament-btn:hover {
    transform: scale(1.05);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: #f8fafc;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e2e8f0;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-card p {
    color: #64748b;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.feature-card ul {
    list-style: none;
}

.feature-card li {
    color: #475569;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.feature-card li::before {
    content: "✅";
    position: absolute;
    left: 0;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: white;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

.workflow-steps {
    display: grid;
    gap: 3rem;
    max-width: 800px;
    margin: 0 auto;
}

.step {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
}

.step-number {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.step-content p {
    color: #64748b;
    line-height: 1.6;
}

/* Installation Section */
.installation {
    padding: 100px 0;
    background: #f8fafc;
}

.installation h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

.installation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.installation-step {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.installation-step:hover {
    transform: translateY(-5px);
}

.step-icon {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
}

.installation-step h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.installation-step p {
    color: #64748b;
    line-height: 1.6;
}

.system-requirements {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.system-requirements h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #1e293b;
}

.requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.requirement {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 8px;
    color: #475569;
    font-weight: 500;
}

.requirement i {
    color: #2563eb;
    font-size: 1.2rem;
}

/* Usage Guide Section */
.usage-guide {
    padding: 100px 0;
    background: white;
}

.usage-guide h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #1e293b;
}

.usage-tabs {
    max-width: 1000px;
    margin: 0 auto;
}

.tab-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-btn {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    color: #64748b;
}

.tab-btn.active,
.tab-btn:hover {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    border-color: transparent;
}

.tab-content {
    display: none;
    background: #f8fafc;
    padding: 3rem;
    border-radius: 16px;
}

.tab-content.active {
    display: block;
}

.usage-content h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: #1e293b;
}

.usage-content ol {
    margin-bottom: 2rem;
}

.usage-content li {
    margin-bottom: 1rem;
    color: #475569;
    line-height: 1.6;
}

.usage-content strong {
    color: #2563eb;
}

.tip {
    background: linear-gradient(135deg, #fef3c7, #fed7aa);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    border-left: 4px solid #f59e0b;
    margin-bottom: 1rem;
}

.tip i {
    color: #f59e0b;
    font-size: 1.2rem;
    margin-top: 0.2rem;
}

.tip-winner {
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    border-left: 4px solid #10b981;
}

.tip-winner i {
    color: #10b981;
}

/* Download Section */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e293b, #475569);
    color: white;
    text-align: center;
}

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

.download > p {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.download-card {
    background: white;
    color: #333;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
}

.download-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #1e293b;
}

.download-info p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

.download-info ul {
    list-style: none;
    text-align: left;
}

.download-info li {
    margin-bottom: 0.5rem;
    color: #475569;
}

.btn-download {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    padding: 1.5rem 3rem;
    font-size: 1.25rem;
    border-radius: 50px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    flex-direction: column;
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(16, 185, 129, 0.4);
}

.btn-download span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.download-note {
    color: #64748b;
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* Footer */
.footer {
    background: #1e293b;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #f1f5f9;
}

.footer-section p {
    color: #94a3b8;
    line-height: 1.6;
}

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

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section li a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section li a:hover {
    color: #2563eb;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        display: none;
    }

    .language-selector {
        margin-left: 0.5rem;
    }

    .lang-btn {
        padding: 0.4rem 0.6rem;
        font-size: 0.75rem;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-features {
        grid-template-columns: 1fr;
    }

    .app-window {
        width: 100%;
        max-width: 350px;
    }

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

    .step {
        flex-direction: column;
        text-align: center;
    }

    .tab-buttons {
        flex-direction: column;
        gap: 0.5rem;
    }

    .download-card {
        margin: 0 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .language-selector {
        gap: 0.25rem;
    }

    .lang-btn {
        padding: 0.3rem 0.5rem;
        font-size: 0.7rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .usage-content ol {
        padding-left: 1rem;
    }
}

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

.feature-card,
.installation-step,
.step {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}