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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --accent-red: #e63946;
    --accent-yellow: #ffb703;
    --border-color: #333333;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header */
header {
    background-color: var(--bg-primary);
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo img {
    height: 24px;
    width: auto;
    display: block;
}

nav {
    display: flex;
    gap: 30px;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 16px;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.7;
}

/* Main Content */
main {
    flex: 1;
    padding: 60px 0;
}

/* Hero Section */
.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background-color: var(--accent-red);
    color: var(--text-primary);
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    transition: background-color 0.3s, transform 0.2s;
}

.cta-button:hover {
    background-color: #d62839;
    transform: translateY(-2px);
}

.arrow-icon {
    width: 20px;
    height: 20px;
    display: block;
}

/* Phone Screenshots */
.hero-screenshots {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phones-image {
    max-width: 100%;
    height: auto;
    width: 100%;
    max-width: 700px;
    display: block;
}

.btn-primary {
    background-color: var(--accent-red);
    color: var(--text-primary);
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-primary:hover {
    background-color: #d62839;
}

.btn-secondary {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.3s;
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
}

/* Content Pages */
.content-page {
    max-width: 800px;
    margin: 0 auto;
}

.content-page h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 40px;
    line-height: 1.2;
}

.content-page h2 {
    font-size: 32px;
    font-weight: 600;
    margin-top: 40px;
    margin-bottom: 20px;
}

.content-page section {
    margin-bottom: 32px;
}

.content-page p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.7;
}

.content-page ul {
    margin-left: 24px;
    margin-bottom: 16px;
}

.content-page li {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.7;
}

.content-page a {
    color: var(--accent-red);
    text-decoration: none;
}

.content-page a:hover {
    text-decoration: underline;
}

/* Support Form */
.support-form {
    margin-top: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.support-form input,
.support-form textarea {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    width: 100%;
}

.support-form input::placeholder,
.support-form textarea::placeholder {
    color: var(--text-secondary);
}

.support-form textarea {
    resize: vertical;
    min-height: 200px;
}

.form-footer {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-top: 24px;
}

.form-footer .btn-primary {
    flex-shrink: 0;
}

.privacy-notice {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Footer */
footer {
    background-color: var(--bg-primary);
    padding: 30px 0;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}

footer p {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-section {
        gap: 40px;
    }
    
    .phones-image {
        max-width: 600px;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 20px;
    }
    
    nav {
        gap: 20px;
    }
    
    .hero-section {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-content h1 {
        font-size: 40px;
    }
    
    .hero-screenshots {
        justify-content: center;
    }
    
    .phones-image {
        max-width: 100%;
    }
    
    .content-page h1 {
        font-size: 36px;
    }
    
    .content-page h2 {
        font-size: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-footer {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    main {
        padding: 40px 0;
    }
    
    .hero-content h1 {
        font-size: 32px;
    }
    
    .hero-content p {
        font-size: 16px;
    }
    
    .cta-button {
        padding: 14px 24px;
        font-size: 16px;
    }
    
    .phones-image {
        max-width: 100%;
    }
    
    .content-page h1 {
        font-size: 28px;
    }
    
    .content-page h2 {
        font-size: 24px;
    }
    
    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
}