/* ==========================================
   MILESTONES & CERTIFICATIONS
   ========================================== */
.milestone-tabs {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.milestone-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-content: flex-start;
    gap: 24px;
    position: relative;
    min-height: 400px;
}

.milestone-card {
    position: relative;
    padding: 30px 25px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.4s ease, transform 0.4s ease;
    cursor: default;
    overflow: hidden;
    align-items: flex-start;
    flex: 0 1 calc(25% - 18px);
    min-width: 300px;
}

.milestone-card.hide {
    display: none !important;
}

.fade-in-up {
    animation: fadeInUpAnim 0.5s ease-out forwards;
}

@keyframes fadeInUpAnim {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.milestone-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 35px rgba(0, 243, 255, 0.15), 0 0 20px rgba(0, 243, 255, 0.1) inset;
    border-color: var(--electric-blue);
}

.milestone-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    transition: transform 0.4s ease;
}

.milestone-card:hover .milestone-icon {
    transform: scale(1.15) rotate(5deg);
}

.milestone-content h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.2rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.milestone-content p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.milestone-content p.issuer {
    color: var(--electric-blue);
    font-weight: 600;
}

.milestone-tooltip {
    position: absolute;
    bottom: -60px;
    left: 0;
    width: 100%;
    background: rgba(2, 2, 7, 0.95);
    padding: 12px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--neon-green);
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
    border-top: 1px solid var(--glass-border);
    transition: bottom 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0;
}

.milestone-card:hover .milestone-tooltip {
    bottom: 0;
    opacity: 1;
}