:root {
    
    --color-gold: #f5c518;
    --color-gold-dark: #d4af37;
    --color-black: #000;
    --color-white: #fff;
    --color-text: #fff;
    --color-text-muted: #ddd;

    --color-glass-bg: rgba(255, 255, 255, 0.08);
    --color-glass-border: rgba(255, 255, 255, 0.12);
    --color-gold-glow: rgba(245, 197, 24, 0.4);
    --color-gold-shadow: rgba(245, 197, 24, 0.25);
    --color-gold-dot-shadow: rgba(245, 197, 24, 0.3);

    
    --radius-sm: 2px;
    --radius-md: 20px;
    --radius-full: 50%;
    --radius-btn: 50px;

    --spacing-xs: 0.4rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 2.5rem;
    --spacing-3xl: 3rem;

    --size-logo: 48px;
    --size-dot: 20px;
    --size-dot-border: 4px;
    --size-social-icon: 42px;
    --size-team-img: 160px;

    --line-height: 1.7;

    
    --transition-fast: 0.3s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.7s ease;
    --transition-shine: 3s linear infinite;
    --transition-nebula: 25s ease-in-out infinite alternate;

    --animation-twinkle: 3s infinite alternate;
    --animation-fadeinup: 0.8s ease forwards;

    
    --blur-glass: 16px;
    --blur-header: 12px;

    --shadow-glow: 0 0 15px var(--color-gold-glow);
    --shadow-card-hover: 0 20px 40px var(--color-gold-shadow);
    --shadow-social-hover: 0 8px 20px var(--color-gold-shadow);
    --shadow-dot: 0 0 0 4px var(--color-gold-dot-shadow);

    
    --gradient-shine: linear-gradient(90deg, transparent, var(--color-gold), transparent);
    --gradient-title: linear-gradient(45deg, var(--color-gold), var(--color-white), var(--color-gold-dark));
    --gradient-glass-shine: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);

    
    --bg-nebula-purple: #1a0033;
    --bg-nebula-blue: #001a33;
}


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

body {
    font-family: 'MainFont','Vazirmatn', sans-serif ;
    background: var(--color-black);
    color: var(--color-text);
    line-height: var(--line-height);
    overflow-x: hidden;
}




.shine-line {
    height: 3px;
    background: var(--gradient-shine);
    background-size: 200%;
    animation: shine var(--transition-shine);
    position: absolute;
    left: 0;
    right: 0;
    z-index: 1;
}

@keyframes shine {
    to {
        background-position: -200%;
    }
}




.logo img {
    height: var(--size-logo);
    filter: drop-shadow(0 0 6px var(--color-gold));
    transition: transform var(--transition-fast);
}

.logo img:hover {
    transform: scale(1.08);
}

.nav-link {
    color: var(--color-text) !important;
    font-weight: 500;
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 8px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--color-gold);
    transition: var(--transition-fast);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-gold) !important;
}

.btn-auth {
    border-radius: var(--radius-btn);
    padding: var(--spacing-sm) 1.5rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    min-width: 100px;
}

.btn-login {
    border: 2px solid var(--color-gold);
    color: var(--color-gold);
    background: transparent;
}

.btn-login:hover {
    background: var(--color-gold);
    color: var(--color-black);
    box-shadow: var(--shadow-glow);
}

.btn-register {
    background: var(--color-gold);
    color: var(--color-black);
    border: 2px solid var(--color-gold);
}

.btn-register:hover {
    background: transparent;
    color: var(--color-gold);
    box-shadow: var(--shadow-glow);
}


.hero {
    padding: 110px 0 70px;
    text-align: center;
}

.section-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    background: var(--gradient-title);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--color-gold);
    border-radius: var(--radius-sm);
}


.glass {
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-md);
    padding: clamp(1.5rem, 3vw, 2rem);
    backdrop-filter: blur(var(--blur-glass));
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.glass::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: var(--gradient-glass-shine);
    transition: var(--transition-slow);
}

.glass:hover::before {
    left: 100%;
}

.glass:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--color-gold);
}


.timeline {
    position: relative;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    right: 50%;
    width: 2px;
    background: var(--color-gold);
    opacity: 0.3;
    z-index: 0;
}

.timeline-item {
    width: 50%;
    padding: 0 var(--spacing-2xl);
    margin: var(--spacing-3xl) 0;
    position: relative;
    z-index: 1;
}

.timeline-item:nth-child(odd) {
    padding-right: var(--spacing-3xl);
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: var(--spacing-3xl);
    text-align: left;
    left: -50%;
}

.timeline-dot {
    position: absolute;
    width: var(--size-dot);
    height: var(--size-dot);
    background: var(--color-gold);
    border: var(--size-dot-border) solid var(--color-black);
    border-radius: var(--radius-full);
    top: 12px;
    box-shadow: var(--shadow-dot);
    z-index: 2;
}

.timeline-item:nth-child(odd) .timeline-dot {
    left: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
    right: -10px;
}


.team-img {
    width: var(--size-team-img);
    height: var(--size-team-img);
    object-fit: cover;
    border: 5px solid var(--color-gold);
    border-radius: var(--radius-full);
    transition: transform var(--transition-medium);
}

.team-card:hover .team-img {
    transform: scale(1.12);
}


.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: var(--size-social-icon);
    height: var(--size-social-icon);
    background: var(--color-glass-bg);
    border: 1px solid var(--color-glass-border);
    border-radius: var(--radius-full);
    color: var(--color-gold);
    font-size: 1.2rem;
    margin-left: var(--spacing-xs);
    transition: var(--transition-fast);
}

.social-icons a:hover {
    background: var(--color-gold);
    color: var(--color-black);
    transform: translateY(-4px);
    box-shadow: var(--shadow-social-hover);
}


@media (max-width: 992px) {
    .timeline::before {
        right: 30px;
    }

    .timeline-item {
        width: 100% !important;
        padding: 0 0 0 70px !important;
        text-align: right !important;
        left: 0 !important;
        margin: var(--spacing-2xl) 0;
    }

    .timeline-item .timeline-dot {
        left: 20px !important;
        right: auto !important;
    }

    .timeline-item:nth-child(1) {
        animation-delay: 0s;
    }

    .timeline-item:nth-child(2) {
        animation-delay: .2s;
    }

    .timeline-item:nth-child(3) {
        animation-delay: .4s;
    }

    .timeline-item:nth-child(4) {
        animation-delay: .6s;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 90px 0 50px;
    }

    .btn-auth {
        width: 100%;
        margin: var(--spacing-xs) 0;
    }

    .navbar-nav {
        text-align: center;
    }

    .footer-col {
        margin-bottom: var(--spacing-xl);
    }
}


@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fadeInUp {
    opacity: 0;
    animation: fadeInUp var(--animation-fadeinup);
}



@media (max-width: 992px) {
    .timeline::before {
        left: 30px;
       
        right: auto;
      
    }

    .timeline-item {
        width: 100% !important;
        padding: 0 0 0 80px !important;
        
        text-align: right !important;
        left: 0 !important;
        margin: var(--spacing-2xl) 0;
    }

    .timeline-item .timeline-dot {
        left: 20px !important;
       
        right: auto !important;
    }

   
    .timeline-item:nth-child(1) {
        animation-delay: 0s;
    }

    .timeline-item:nth-child(2) {
        animation-delay: .2s;
    }

    .timeline-item:nth-child(3) {
        animation-delay: .4s;
    }

    .timeline-item:nth-child(4) {
        animation-delay: .6s;
    }

    .timeline-item:nth-child(5) {
        animation-delay: .8s;
    }

    .timeline-item:nth-child(6) {
        animation-delay: 1s;
    }

    .timeline-item:nth-child(7) {
        animation-delay: 1.2s;
    }

    .timeline-item:nth-child(8) {
        animation-delay: 1.4s;
    }
}