.btn {
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.25s ease;
}

/* ✨ SHINY EFFECT */
.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 60%;
    height: 100%;
    background: linear-gradient(
        120deg,
        transparent,
        rgba(255,255,255,0.6),
        transparent
    );
    transform: skewX(-20deg);
}

/* ✨ ANIMATION */
.btn:hover::before {
    left: 120%;
    transition: 0.6s;
}

/* PRIMARY BUTTON */
.btn-primary {
    background: linear-gradient(to right, var(--primary), var(--primary-dark));
    color: white;
    border: none;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 18px rgba(0,0,0,0.18);
}

/* OUTLINE BUTTON */
.btn-outline {
    background: white;
    color: var(--primary-dark);
    border: 1.5px solid #d1d5db;
}

/* ✨ OUTLINE HOVER (PREMIUM WHITE STYLE) */
.btn-outline:hover {
    background: white; /* stay white */
    color: var(--primary-dark);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 186, 203, 0.2);
}
/* CLICK EFFECT */
.btn:active {
    transform: scale(0.96);
}