:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #06b6d4;
    --accent: #8b5cf6;
    --accent-glow: #c084fc;
    --bg-dark: #030014;
    --bg-darker: #02000a;
    --bg-card: #0a0a1a;
    --bg-card-hover: #0f0f2a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    --border: rgba(99, 102, 241, 0.2);
    --glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --glow-strong: 0 0 30px rgba(99, 102, 241, 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* پس‌زمینه ستاره‌ها */
.stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.star {
    position: absolute;
    background: white;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

/* نوار ناوبری */
.navbar {
    background: rgba(3, 0, 20, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    padding: 16px 32px;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.logo-img {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.3s;
}

.nav-links a:hover {
    color: var(--primary-light);
}

.btn-login {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    padding: 8px 20px;
    border-radius: 50px;
    color: white !important;
}

/* دکمه نصب */
.btn-install {
    background: rgba(6, 182, 212, 0.2);
    border: 1px solid var(--secondary);
    border-radius: 40px;
    padding: 8px 20px;
    color: var(--secondary);
    cursor: pointer;
    transition: 0.3s;
}

.btn-install:hover {
    background: var(--secondary);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--secondary);
}

/* دکمه اصلی */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid var(--secondary);
    padding: 12px 28px;
    border-radius: 50px;
    color: var(--secondary);
    text-decoration: none;
    transition: 0.3s;
}

/* بخش اصلی */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 80px 20px;
}

.hero-content {
    max-width: 900px;
}

.glitch-text {
    font-size: 5rem;
    font-weight: 800;
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 100% { text-shadow: 2px 0 var(--secondary), -2px 0 var(--primary); }
    25% { text-shadow: -2px 0 var(--secondary), 2px 0 var(--primary); }
    50% { text-shadow: 2px 0 var(--primary), -2px 0 var(--secondary); }
    75% { text-shadow: -2px 0 var(--primary), 2px 0 var(--secondary); }
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-secondary);
    margin: 20px 0;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin: 40px 0;
}

.stats {
    display: flex;
    gap: 50px;
    justify-content: center;
    margin-top: 60px;
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: block;
}

/* کارت‌ها */
.card {
    background: rgba(10, 10, 26, 0.6);
    backdrop-filter: blur(12px);
    border-radius: 24px;
    border: 1px solid var(--border);
    padding: 24px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.features-grid, .pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin: 60px 0 30px;
    background: linear-gradient(135deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.cost-badge {
    display: inline-block;
    background: rgba(99, 102, 241, 0.2);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 10px;
}

.free-badge {
    background: rgba(6, 182, 212, 0.2);
    color: var(--secondary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    margin-right: 10px;
}

/* تعرفه‌ها */
.pricing-card {
    text-align: center;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 20px 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pricing-card ul {
    list-style: none;
    margin: 20px 0;
}

.pricing-card li {
    padding: 8px 0;
    color: var(--text-secondary);
}

.popular {
    border: 1px solid var(--primary);
    box-shadow: var(--glow);
    position: relative;
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
}

.btn-buy {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border: none;
    padding: 10px 30px;
    border-radius: 50px;
    color: white;
    cursor: pointer;
    width: 100%;
    margin-top: 15px;
}

/* دمو */
.demo {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px;
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    background: var(--bg-card);
    border-radius: 24px;
    padding: 30px;
}

.demo-input textarea {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 15px;
    color: white;
    font-family: inherit;
    resize: vertical;
}

.demo-output {
    background: var(--bg-darker);
    border-radius: 16px;
    padding: 15px;
}

.output-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.btn-download {
    background: var(--secondary);
    border: none;
    padding: 5px 15px;
    border-radius: 20px;
    cursor: pointer;
}

#outputCode {
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    color: var(--text-secondary);
}

/* فوتر */
footer {
    text-align: center;
    padding: 40px;
    border-top: 1px solid var(--border);
    margin-top: 60px;
    color: var(--text-muted);
}

/* ریسپانسیو */
@media (max-width: 768px) {
    .glitch-text { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; align-items: center; }
    .stats { flex-direction: column; gap: 20px; }
    .features-grid, .pricing-grid { grid-template-columns: 1fr; padding: 20px; }
    .demo-container { grid-template-columns: 1fr; }
    .nav-links { display: none; }
}