:root {
    --primary-color: #6366f1;
    --primary-light: rgba(99, 102, 241, 0.1);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(51, 65, 85, 0.5);
    --text-main: #f8fafc;
    --common: #b9b9b9;
    --rare: #6515c0;
    --legendary: #ffd900;
    --neon-glow: 0 0 10px rgba(99, 102, 241, 0.7);
    --card-glow: 0 0 15px rgba(99, 102, 241, 0.3);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    padding: 20px;
}

.achievement-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-left: 5px solid;
    border-radius: 8px;
    padding: 20px;
    transition: all 0.3s ease;
    overflow: hidden;
    box-shadow: var(--card-glow);
    backdrop-filter: blur(5px);
}

.achievement-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    opacity: 0.7;
}

.achievement-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.achievement-icon {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border-radius: 8px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.3);
    padding: 5px;
    filter: drop-shadow(var(--neon-glow));
}

.achievement-title {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-main);
    text-shadow: var(--neon-glow);
    flex-grow: 1;
}

.achievement-description {
    color: rgba(248, 250, 252, 0.8);
    font-size: 1.1rem;
    line-height: 1.5;
    margin-bottom: 20px;
    min-height: 60px;
}

.achievement-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
}

.achievement-rarity {
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.rarity-common {
    background: rgba(46, 125, 50, 0.2);
    color: #4caf50;
    border: 1px solid var(--common);
}

.rarity-rare {
    background: rgba(21, 101, 192, 0.2);
    color: #42a5f5;
    border: 1px solid var(--rare);
}

.rarity-legendary {
    background: rgba(255, 143, 0, 0.2);
    color: #ffb74d;
    border: 1px solid var(--legendary);
}

/* Progress bar styling */
.achievement-progress {
    position: relative;
    height: 10px;
    width: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 5px;
    overflow: hidden;
}

.achievement-progress::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #a78bfa);
    border-radius: 5px;
    width: var(--progress-width, 0%);
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.5);
}

.achievement-progress-percent {
    font-weight: 600;
    color: var(--primary-color);
    text-shadow: 0 0 5px rgba(99, 102, 241, 0.5);
}

.achievement-progress-container {
    position: relative;
    margin: 20px 0 15px;
}

.achievement-progress-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: rgba(248, 250, 252, 0.8);
}