:root {
    --welcome-bg: linear-gradient(135deg, #f5f7fa 0%, #e4f1f9 100%);
    --card-bg: rgba(255, 255, 255, 0.9);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --card-hover-shadow: 0 15px 35px rgba(14, 190, 126, 0.2);
    --card-border: 1px solid rgba(14, 190, 126, 0.1);
    --icon-bg: linear-gradient(135deg, #0ebf7e 0%, #00bf9a 100%);
    --text-primary: #2d3748;
    --text-secondary: #4a5568;
    --text-accent: #0ebf7e;
    --btn-gradient: linear-gradient(135deg, #0ebf7e 0%, #00bf9a 100%);
    --btn-shadow: 0 10px 20px rgba(14, 190, 126, 0.3);
    --transition-normal: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Cairo', sans-serif;
    background: var(--welcome-bg);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    direction: rtl;
    color: var(--text-primary);
}

.welcome-container {
    width: 100%;
    max-width: 1200px;
    padding: 40px 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 60px;
}

.welcome-header {
    text-align: center;
    margin-bottom: 20px;
}

.welcome-logo {
    width: 100px;
    height: 100px;
    margin-bottom: 20px;
    animation: pulse 2s infinite alternate;
}

.welcome-title {
    font-size: 3rem;
    margin: 0 0 15px 0;
    color: var(--text-primary);
}

.brand-name {
    color: var(--text-accent);
    font-weight: 700;
    position: relative;
}

.welcome-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin: 0;
    max-width: 600px;
    margin: 0 auto;
}

.features-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    width: 100%;
}

.feature-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--card-shadow);
    border: var(--card-border);
    transition: var(--transition-normal);
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    position: relative;
    overflow: hidden;
}

.feature-card.show {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-hover-shadow);
    border-color: rgba(14, 190, 126, 0.3);
}

.feature-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--icon-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.8rem;
    box-shadow: 0 10px 20px rgba(14, 190, 126, 0.2);
}

.feature-card h3 {
    font-size: 1.4rem;
    margin: 0 0 15px 0;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.6;
}

.welcome-footer {
    text-align: center;
    margin-top: 20px;
    width: 100%;
}

.start-btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--btn-gradient);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: 600;
    font-size: 1.2rem;
    box-shadow: var(--btn-shadow);
    transition: var(--transition-normal);
    margin-bottom: 30px;
}

.start-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(14, 190, 126, 0.4);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.designer-name {
    color: var(--text-accent);
    font-weight: 600;
}

/* تأثيرات الحركة */
@keyframes pulse {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.1);
    }
}

/* تصميم متجاوب */
@media (max-width: 768px) {
    .welcome-title {
        font-size: 2.2rem;
    }
    
    .welcome-subtitle {
        font-size: 1rem;
    }
    
    .features-container {
        grid-template-columns: 1fr;
    }
    
    .welcome-logo {
        width: 80px;
        height: 80px;
    }
    
    .feature-card {
        padding: 20px;
    }
}