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

:root {
    --primary-color: #0B79D0;
    --primary-dark: #085a9e;
    --gradient: linear-gradient(135deg, #0B79D0 0%, #085a9e 100%);
    --text-dark: #333;
    --text-light: #666;
    --bg-light: #f5f7fa;
    --border-color: #e0e0e0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 30px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: #fff;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Hero Section */
.hero {
    background: var(--gradient);
    color: white;
    text-align: center;
    padding: 80px 40px;
    border-radius: 20px;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}

.hero-icon {
    width: 120px;
    height: 120px;
    margin-bottom: 30px;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.2));
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.subtitle {
    font-size: 1.3em;
    margin-bottom: 40px;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Screenshot */
.hero-screenshot {
    margin-bottom: 60px;
    text-align: center;
}

.screenshot-img {
    width: 100%;
    max-width: 900px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: transform 0.3s ease;
}

.screenshot-img:hover {
    transform: scale(1.02);
}

.screenshot-placeholder {
    background: var(--bg-light);
    padding: 80px 40px;
    border-radius: 12px;
    border: 2px dashed var(--border-color);
    max-width: 900px;
    margin: 0 auto;
}

.screenshot-placeholder p {
    font-size: 1.5em;
    color: var(--text-light);
    margin-bottom: 10px;
}

.screenshot-placeholder small {
    color: var(--text-light);
}

/* Features Section */
.features {
    margin-bottom: 80px;
}

.features h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.feature-icon {
    font-size: 3.5em;
    margin-bottom: 20px;
}

.feature h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

/* How It Works Section */
.how-it-works {
    background: var(--bg-light);
    padding: 60px 40px;
    border-radius: 20px;
    margin-bottom: 80px;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2em;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step h3 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

/* Screenshots Section */
.screenshots {
    margin-bottom: 80px;
}

.screenshots h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
    color: var(--text-dark);
}

.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.screenshot-item {
    text-align: center;
}

.screenshot-caption {
    margin-top: 15px;
    color: var(--text-light);
    font-style: italic;
}

/* Privacy First Section */
.privacy-first {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 60px 40px;
    border-radius: 20px;
    margin-bottom: 80px;
    box-shadow: var(--shadow);
}

.privacy-first h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 50px;
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.privacy-item {
    text-align: center;
    padding: 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.privacy-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-3px);
}

.privacy-icon {
    font-size: 3em;
    margin-bottom: 15px;
}

.privacy-item h3 {
    font-size: 1.3em;
    margin-bottom: 12px;
}

.privacy-item p {
    opacity: 0.9;
    line-height: 1.6;
}

/* Installation Section */
.installation {
    background: var(--bg-light);
    padding: 60px 40px;
    border-radius: 20px;
    margin-bottom: 80px;
}

.installation h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 40px;
    color: var(--text-dark);
}

.install-steps h3 {
    font-size: 1.5em;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.install-steps ol {
    margin-left: 30px;
    margin-bottom: 30px;
}

.install-steps li {
    margin-bottom: 15px;
    line-height: 1.7;
    color: var(--text-dark);
}

.install-steps code {
    background: white;
    padding: 3px 8px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.install-steps a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.install-steps a:hover {
    text-decoration: underline;
}

.install-note {
    background: white;
    padding: 20px;
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
    margin-top: 20px;
}

.install-note strong {
    color: var(--primary-color);
}

/* Support Section */
.support {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    border-radius: 20px;
    margin-bottom: 80px;
    box-shadow: var(--shadow);
}

.support h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.support p {
    font-size: 1.2em;
    margin-bottom: 30px;
    opacity: 0.95;
}

.donate-button {
    display: inline-block;
    transition: transform 0.3s ease;
}

.donate-button:hover {
    transform: translateY(-3px);
}

.donate-button img {
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Privacy Policy Section */
.privacy-policy {
    background: white;
    padding: 60px 40px;
    border-radius: 20px;
    margin-bottom: 80px;
    box-shadow: var(--shadow);
}

.privacy-policy h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.privacy-policy h3 {
    font-size: 1.8em;
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.privacy-policy p {
    margin-bottom: 15px;
    line-height: 1.8;
    color: var(--text-dark);
}

.privacy-policy ul {
    margin-left: 30px;
    margin-bottom: 20px;
}

.privacy-policy li {
    margin-bottom: 10px;
    line-height: 1.7;
    color: var(--text-dark);
}

.privacy-policy a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.privacy-policy a:hover {
    text-decoration: underline;
}

.last-updated {
    font-style: italic;
    color: var(--text-light);
    font-size: 0.95em;
    margin-bottom: 30px;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: white;
    padding: 50px 40px 30px;
    border-radius: 20px;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 1.3em;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.footer-section p {
    line-height: 1.7;
    opacity: 0.8;
}

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

.footer-section li {
    margin-bottom: 10px;
}

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    opacity: 0.6;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 50px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.lightbox-close:hover {
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .hero {
        padding: 50px 20px;
    }

    .hero h1 {
        font-size: 2em;
    }

    .subtitle {
        font-size: 1.1em;
    }

    .hero-icon {
        width: 80px;
        height: 80px;
    }

    .features h2,
    .screenshots h2,
    .how-it-works h2,
    .privacy-first h2,
    .installation h2,
    .support h2,
    .privacy-policy h2 {
        font-size: 2em;
    }

    .feature-grid,
    .screenshot-grid,
    .steps,
    .privacy-grid {
        grid-template-columns: 1fr;
    }

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

    .cta-button {
        width: 100%;
        max-width: 300px;
    }

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

    .lightbox-close {
        top: 15px;
        right: 20px;
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.5em;
    }

    .subtitle {
        font-size: 1em;
    }

    .feature-icon {
        font-size: 2.5em;
    }

    .step-number {
        width: 50px;
        height: 50px;
        font-size: 1.5em;
    }
}