:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #4f46e5;
    --accent: #06b6d4;
    --text: #1e293b;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-light);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Navigation */
.header {
    background: var(--white);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,122.7C96,149,192,203,288,208C384,213,480,171,576,165.3C672,160,768,192,864,197.3C960,203,1056,181,1152,165.3C1248,149,1344,139,1392,133.3L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
    background-size: cover;
    opacity: 0.1;
}

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

.hero-text {
    animation: slideInLeft 1s ease-out;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

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

.hero-image {
    position: relative;
    animation: slideInRight 1s ease-out;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.scroll-down-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--primary);
    opacity: 0.7;
    cursor: pointer;
}

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

/* Download Buttons */
.download-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.download-button {
    background: var(--white);
    color: var(--primary);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    animation: pulse 2s infinite;
}

.download-button[disabled],
.download-button.disabled {
    pointer-events: none;
    opacity: 0.7;
    cursor: not-allowed;
}

.download-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
}

.version {
    font-size: 0.875rem;
    opacity: 0.8;
    margin-left: 0.5rem;
}

.download-status {
    display: none;
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 0.5rem;
    background: var(--bg-light);
    text-align: center;
    color: var(--text);
}

.download-status.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--white);
}

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

.section-title h2 {
    font-size: 2.5rem;
    color: var(--text);
    margin-bottom: 1rem;
}

.section-title p {
    color: var(--text-light);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}

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

.feature-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

.feature-icon {
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.feature-card p {
    color: var(--text-light);
}

/* Operators Section */
.operators {
    padding: 6rem 0;
    background: var(--bg-light);
}

.operator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.operator-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.operator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    animation: float 3s ease-in-out infinite;
}

.operator-card img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.operator-card h3 {
    font-size: 1.25rem;
    color: var(--text);
    margin-top: 1rem;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--white);
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.contact-info p {
    margin: 1rem 0;
    color: var(--text);
    font-size: 1.1rem;
}

.contact-info strong {
    color: var(--primary);
}

/* Download Section */
.download-section {
    padding: 6rem 0;
    background: var(--bg-light);
}

.download-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.download-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.download-card h3 {
    color: var(--text);
    margin-bottom: 1rem;
}

.release-notes {
    margin-top: 3rem;
    padding: 2rem;
    background: var(--white);
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.release-notes h3 {
    color: var(--text);
    margin-bottom: 1rem;
}

.release-notes ul {
    list-style-type: none;
    padding: 0;
}

.release-notes li {
    padding: 0.5rem 0;
    color: var(--text);
    display: flex;
    align-items: center;
}

.release-notes li:before {
    content: "•";
    color: var(--primary);
    font-weight: bold;
    margin-right: 0.5rem;
}

.version-badge {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Footer */
.footer {
    background: var(--text);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(100px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 99, 235, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 99, 235, 0);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .download-buttons {
        justify-content: center;
    }

    .hero-image {
        order: -1;
        margin-bottom: 2rem;
    }
}

@media (max-width: 640px) {
    .download-buttons {
        flex-direction: column;
    }

    .feature-card {
        text-align: center;
    }

    .feature-icon {
        margin: 0 auto 1.5rem;
    }
}

/* Contact Form */
.contact-form {
    margin-top: 2rem;
    background: var(--white);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.char-count {
    font-size: 0.875rem;
    color: #718096;
    text-align: right;
    margin-top: 0.25rem;
}

.submit-button {
    background: var(--primary);
    color: white;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(66, 153, 225, 0.4);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.form-success {
    display: none;
    background: #48bb78;
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
    text-align: center;
}

.form-error {
    color: #e53e3e;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}