/* Animated Stats Counter Styles */

.stats {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(20, 184, 166, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 2;
}

/* Stat Card Base Styles */
.stat-card {
    text-align: center;
    padding: 3rem 2rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(
        from 0deg at 50% 50%,
        transparent 0deg,
        var(--accent-purple) 90deg,
        transparent 180deg,
        var(--accent-teal) 270deg,
        transparent 360deg
    );
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    z-index: -2;
    animation: statRotate 10s linear infinite;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: 2px;
    bottom: 2px;
    background: var(--primary-bg);
    border-radius: 18px;
    z-index: -1;
    transition: background 0.3s ease;
}

.stat-card:hover::before {
    opacity: 0.6;
}

.stat-card:hover::after {
    background: var(--secondary-bg);
}

@keyframes statRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.stat-card:hover {
    transform: translateY(-20px) scale(1.05);
    box-shadow: 0 30px 60px rgba(99, 102, 241, 0.3);
}

/* Stat Numbers */
.stat-number {
    font-size: 4rem;
    font-weight: 800;
    font-family: 'JetBrains Mono', monospace;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-teal), var(--accent-pink));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    position: relative;
    line-height: 1;
    text-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
    transition: all 0.3s ease;
}

.stat-card:hover .stat-number {
    transform: scale(1.1);
    text-shadow: 0 0 40px rgba(99, 102, 241, 0.8);
}

/* Counter Animation Effect */
.stat-number.counting {
    animation: numberGlow 0.1s ease infinite alternate;
}

@keyframes numberGlow {
    0% {
        text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
        transform: scale(1);
    }
    100% {
        text-shadow: 0 0 30px rgba(99, 102, 241, 0.8), 0 0 40px rgba(20, 184, 166, 0.4);
        transform: scale(1.02);
    }
}

/* Stat Labels */
.stat-label {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    transition: color 0.3s ease;
}

.stat-card:hover .stat-label {
    color: var(--text-primary);
}

/* Individual Stat Card Variations */
.stat-card:nth-child(1) {
    animation-delay: 0.1s;
}

.stat-card:nth-child(2) {
    animation-delay: 0.2s;
}

.stat-card:nth-child(3) {
    animation-delay: 0.3s;
}

.stat-card:nth-child(4) {
    animation-delay: 0.4s;
}

/* Stat Card Icons */
.stat-card::before {
    content: attr(data-icon);
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    opacity: 0.1;
    transition: all 0.3s ease;
    z-index: 1;
}

.stat-card:hover::before {
    opacity: 0.3;
    transform: scale(1.2) rotate(10deg);
}

/* Animated Background Particles */
.stats::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, rgba(99, 102, 241, 0.3), transparent),
        radial-gradient(2px 2px at 40px 70px, rgba(20, 184, 166, 0.3), transparent),
        radial-gradient(1px 1px at 90px 40px, rgba(236, 72, 153, 0.3), transparent),
        radial-gradient(1px 1px at 130px 80px, rgba(99, 102, 241, 0.3), transparent),
        radial-gradient(2px 2px at 160px 30px, rgba(20, 184, 166, 0.3), transparent);
    background-repeat: repeat;
    background-size: 200px 100px;
    animation: particleFloat 20s linear infinite;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes particleFloat {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-200px, -100px); }
}

/* Progress Bar Animation */
.stat-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-teal));
    border-radius: 0 0 20px 20px;
    transform-origin: left;
    transform: scaleX(0);
    transition: transform 2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.stat-card.animated .stat-progress {
    transform: scaleX(1);
}

/* Milestone Celebrations */
.stat-card.milestone {
    animation: celebrateMilestone 2s ease-in-out;
}

@keyframes celebrateMilestone {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.05) rotate(2deg); }
    50% { transform: scale(1.1) rotate(-2deg); }
    75% { transform: scale(1.05) rotate(1deg); }
}

/* Loading State */
.stat-card.loading .stat-number {
    background: linear-gradient(
        90deg,
        var(--glass-bg) 0%,
        var(--glass-border) 50%,
        var(--glass-bg) 100%
    );
    background-size: 200% 100%;
    animation: statShimmer 1.5s ease-in-out infinite;
    color: transparent;
}

@keyframes statShimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Responsive Design */
@media (max-width: 968px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .stat-card {
        padding: 2rem 1.5rem;
    }
    
    .stat-number {
        font-size: 3rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
}

@media (max-width: 640px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .stat-card {
        padding: 2.5rem 2rem;
        max-width: none;
    }
    
    .stat-number {
        font-size: 3.5rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
    
    .stat-card:hover {
        transform: translateY(-10px) scale(1.02);
    }
}

@media (max-width: 480px) {
    .stat-card {
        padding: 2rem 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .stat-label {
        font-size: 0.9rem;
        letter-spacing: 0.5px;
    }
    
    /* Simplify animations on mobile */
    .stat-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 30px rgba(99, 102, 241, 0.2);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    .stat-card,
    .stat-number,
    .stat-card::before,
    .stat-progress {
        animation: none;
        transition: none;
    }
    
    .stat-card:hover {
        transform: none;
    }
    
    .stats::after {
        animation: none;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    .stat-card {
        border: 2px solid var(--text-primary);
        background: var(--primary-bg);
    }
    
    .stat-number {
        color: var(--text-primary);
        background: none;
        -webkit-text-fill-color: var(--text-primary);
    }
    
    .stat-label {
        color: var(--text-primary);
    }
}

/* Print Styles */
@media print {
    .stats {
        background: white;
        color: black;
    }
    
    .stat-card {
        background: white;
        border: 1px solid black;
        box-shadow: none;
        transform: none;
    }
    
    .stat-number {
        color: black;
        background: none;
        -webkit-text-fill-color: black;
        text-shadow: none;
    }
    
    .stat-label {
        color: black;
    }
    
    .stats::before,
    .stats::after {
        display: none;
    }
}