/* ========================================
   Star Excellent Academy v2.0 - Animations
   Minimal — only essential animations kept
   ======================================== */

/* ── Spinner (loading state) ───────────── */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* ── WhatsApp Button Pulse (attention) ──── */
@keyframes whatsappPulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(37, 211, 102, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.float-btn-whatsapp {
    animation: whatsappPulse 2s ease-in-out infinite;
}

/* ── Gold underline on section titles ────── */
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--gradient-gold);
    margin: 0.75rem auto 0;
    border-radius: var(--radius-full);
}

.section-dark .section-title::after {
    background: var(--accent-gold);
}