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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-alt: #f9fafb;
    --border-color: #e5e7eb;
    --success-color: #10b981;
    --warning-color: #f59e0b;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    color: var(--text-color);
    background: var(--bg-color);
    line-height: 1.6;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Navigation */
nav {
    background: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

nav .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1.25rem;
    color: var(--text-color);
}

nav .logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

nav .nav-links {
    display: flex;
    gap: 2rem;
}

nav .nav-links a {
    color: var(--text-light);
    font-weight: 500;
}

nav .nav-links a:hover {
    color: var(--text-color);
    text-decoration: none;
}

/* Hero Section */
.hero {
    padding: 4rem 2rem;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg-color) 100%);
}

.hero .container {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero .app-icon {
    width: 120px;
    height: 120px;
    border-radius: 24px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Features Section */
.features {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2rem;
    background: var(--bg-alt);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.feature-card .icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

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

/* Screenshots Section */
.screenshots {
    padding: 4rem 2rem;
    background: var(--bg-alt);
}

.screenshots h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

.screenshots-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.screenshots img {
    max-height: 500px;
    border-radius: 16px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Privacy Section */
.privacy-section {
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.privacy-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.privacy-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.privacy-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-alt);
    border-radius: 8px;
}

.privacy-item .check {
    color: var(--success-color);
    font-size: 1.5rem;
}

/* Page Content */
.page-content {
    padding: 3rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.page-content h1 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.page-content h2 {
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.page-content h3 {
    font-size: 1.25rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.page-content p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.page-content ul, .page-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.page-content li {
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.page-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
}

.page-content th, .page-content td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.page-content th {
    background: var(--bg-alt);
    font-weight: 600;
}

/* Support specific */
.step-card {
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.step-card .step-number {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    font-weight: 600;
    margin-right: 0.75rem;
}

.step-card h3 {
    display: inline;
    margin: 0;
}

.step-card p {
    margin-top: 1rem;
    margin-bottom: 0;
}

.warning-box {
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
}

.warning-box strong {
    color: #92400e;
}

.code-block {
    background: #1f2937;
    color: #e5e7eb;
    padding: 1rem;
    border-radius: 8px;
    font-family: monospace;
    overflow-x: auto;
    margin: 1rem 0;
}

/* Footer */
footer {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    padding: 2rem;
    text-align: center;
    color: var(--text-light);
}

footer a {
    color: var(--text-light);
}

footer .links {
    margin-bottom: 1rem;
}

footer .links a {
    margin: 0 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 1rem;
    }

    nav .nav-links {
        gap: 1rem;
    }

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

    .hero .subtitle {
        font-size: 1rem;
    }

    .screenshots img {
        max-height: 350px;
        max-width: 100%;
    }
}